cafe-grader-web Commit - r719:19bd5319581a

cafe-grader-web

Commit `r719:19bd5319581a` public

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Description:

Merge pull request #20 from nattee/master feature merge

Commit status:

[Not Reviewed]

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r719:19bd5319581a - Sat, 10 Mar 2018 07:31:57 - 95 files changed: 1214 inserted, 401 deleted

app/assets/javascripts/groups.js.coffee created 644 ¶

new file 100644

app/assets/javascripts/tags.coffee created 644 ¶ +3

			@@ -0,0 +1,3
		1	+ # Place all the behaviors and hooks related to the matching controller here.
		2	+ # All this logic will automatically be available in application.js.
		3	+ # You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/javascripts/testcases.js.coffee created 644 ¶

new file 100644

app/assets/stylesheets/groups.css.scss created 644 ¶

new file 100644

app/assets/stylesheets/tags.scss created 644 ¶ +3

			@@ -0,0 +1,3
		1	+ // Place all the styles related to the tags controller here.
		2	+ // They will automatically be included in application.css.
		3	+ // You can use Sass (SCSS) here: http://sass-lang.com/

app/assets/stylesheets/testcases.css.scss created 644 ¶

new file 100644

app/controllers/groups_controller.rb created 644 ¶ +104

			@@ -0,0 +1,104
		1	+ class GroupsController < ApplicationController
		2	+ before_action :set_group, only: [:show, :edit, :update, :destroy,
		3	+ :add_user, :remove_user,:remove_all_user,
		4	+ :add_problem, :remove_problem,:remove_all_problem,
		5	+ ]
		6	+ before_action :authenticate, :admin_authorization
		7	+
		8	+ # GET /groups
		9	+ def index
		10	+ @groups = Group.all
		11	+ end
		12	+
		13	+ # GET /groups/1
		14	+ def show
		15	+ end
		16	+
		17	+ # GET /groups/new
		18	+ def new
		19	+ @group = Group.new
		20	+ end
		21	+
		22	+ # GET /groups/1/edit
		23	+ def edit
		24	+ end
		25	+
		26	+ # POST /groups
		27	+ def create
		28	+ @group = Group.new(group_params)
		29	+
		30	+ if @group.save
		31	+ redirect_to @group, notice: 'Group was successfully created.'
		32	+ else
		33	+ render :new
		34	+ end
		35	+ end
		36	+
		37	+ # PATCH/PUT /groups/1
		38	+ def update
		39	+ if @group.update(group_params)
		40	+ redirect_to @group, notice: 'Group was successfully updated.'
		41	+ else
		42	+ render :edit
		43	+ end
		44	+ end
		45	+
		46	+ # DELETE /groups/1
		47	+ def destroy
		48	+ @group.destroy
		49	+ redirect_to groups_url, notice: 'Group was successfully destroyed.'
		50	+ end
		51	+
		52	+ def remove_user
		53	+ user = User.find(params[:user_id])
		54	+ @group.users.delete(user)
		55	+ redirect_to group_path(@group), flash: {success: "User #{user.login} was removed from the group #{@group.name}"}
		56	+ end
		57	+
		58	+ def remove_all_user
		59	+ @group.users.clear
		60	+ redirect_to group_path(@group), alert: 'All users removed'
		61	+ end
		62	+
		63	+ def remove_all_problem
		64	+ @group.problems.clear
		65	+ redirect_to group_path(@group), alert: 'All problems removed'
		66	+ end
		67	+
		68	+ def add_user
		69	+ user = User.find(params[:user_id])
		70	+ begin
		71	+ @group.users << user
		72	+ redirect_to group_path(@group), flash: { success: "User #{user.login} was add to the group #{@group.name}"}
		73	+ rescue => e
		74	+ redirect_to group_path(@group), alert: e.message
		75	+ end
		76	+ end
		77	+
		78	+ def remove_problem
		79	+ problem = Problem.find(params[:problem_id])
		80	+ @group.problems.delete(problem)
		81	+ redirect_to group_path(@group), flash: {success: "Problem #{problem.name} was removed from the group #{@group.name}" }
		82	+ end
		83	+
		84	+ def add_problem
		85	+ problem = Problem.find(params[:problem_id])
		86	+ begin
		87	+ @group.problems << problem
		88	+ redirect_to group_path(@group), flash: {success: "Problem #{problem.name} was add to the group #{@group.name}" }
		89	+ rescue => e
		90	+ redirect_to group_path(@group), alert: e.message
		91	+ end
		92	+ end
		93	+
		94	+ private
		95	+ # Use callbacks to share common setup or constraints between actions.
		96	+ def set_group
		97	+ @group = Group.find(params[:id])
		98	+ end
		99	+
		100	+ # Only allow a trusted parameter "white list" through.
		101	+ def group_params
		102	+ params.require(:group).permit(:name, :description)
		103	+ end
		104	+ end

app/controllers/tags_controller.rb created 644 ¶ +60

			@@ -0,0 +1,60
		1	+ class TagsController < ApplicationController
		2	+ before_action :set_tag, only: [:show, :edit, :update, :destroy]
		3	+
		4	+ # GET /tags
		5	+ def index
		6	+ @tags = Tag.all
		7	+ end
		8	+
		9	+ # GET /tags/1
		10	+ def show
		11	+ end
		12	+
		13	+ # GET /tags/new
		14	+ def new
		15	+ @tag = Tag.new
		16	+ end
		17	+
		18	+ # GET /tags/1/edit
		19	+ def edit
		20	+ end
		21	+
		22	+ # POST /tags
		23	+ def create
		24	+ @tag = Tag.new(tag_params)
		25	+
		26	+ if @tag.save
		27	+ redirect_to @tag, notice: 'Tag was successfully created.'
		28	+ else
		29	+ render :new
		30	+ end
		31	+ end
		32	+
		33	+ # PATCH/PUT /tags/1
		34	+ def update
		35	+ if @tag.update(tag_params)
		36	+ redirect_to @tag, notice: 'Tag was successfully updated.'
		37	+ else
		38	+ render :edit
		39	+ end
		40	+ end
		41	+
		42	+ # DELETE /tags/1
		43	+ def destroy
		44	+ #remove any association
		45	+ ProblemTag.where(tag_id: @tag.id).destroy_all
		46	+ @tag.destroy
		47	+ redirect_to tags_url, notice: 'Tag was successfully destroyed.'
		48	+ end
		49	+
		50	+ private
		51	+ # Use callbacks to share common setup or constraints between actions.
		52	+ def set_tag
		53	+ @tag = Tag.find(params[:id])
		54	+ end
		55	+
		56	+ # Only allow a trusted parameter "white list" through.
		57	+ def tag_params
		58	+ params.require(:tag).permit(:name, :description, :public)
		59	+ end
		60	+ end

app/helpers/groups_helper.rb created 644 ¶ +2

			@@ -0,0 +1,2
		1	+ module GroupsHelper
		2	+ end

app/helpers/tags_helper.rb created 644 ¶ +2

			@@ -0,0 +1,2
		1	+ module TagsHelper
		2	+ end

app/models/group.rb created 644 ¶ +13

			@@ -0,0 +1,13
		1	+ class Group < ActiveRecord::Base
		2	+ has_many :groups_problems, class_name: GroupProblem
		3	+ has_many :problems, :through => :groups_problems
		4	+
		5	+ has_many :groups_users, class_name: GroupUser
		6	+ has_many :users, :through => :groups_users
		7	+
		8	+ #has_and_belongs_to_many :problems
		9	+ #has_and_belongs_to_many :users
		10	+
		11	+
		12	+ end
		13	+

app/models/group_problem.rb created 644 ¶ +7

			@@ -0,0 +1,7
		1	+ class GroupProblem < ActiveRecord::Base
		2	+ self.table_name = 'groups_problems'
		3	+
		4	+ belongs_to :problem
		5	+ belongs_to :group
		6	+ validates_uniqueness_of :problem_id, scope: :group_id, message: ->(object, data) { "'#{Problem.find(data[:value]).full_name}' is already in the group" }
		7	+ end

app/models/group_user.rb created 644 ¶ +7

			@@ -0,0 +1,7
		1	+ class GroupUser < ActiveRecord::Base
		2	+ self.table_name = 'groups_users'
		3	+
		4	+ belongs_to :user
		5	+ belongs_to :group
		6	+ validates_uniqueness_of :user_id, scope: :group_id, message: ->(object, data) { "'#{User.find(data[:value]).full_name}' is already in the group" }
		7	+ end

app/models/problem_tag.rb created 644 ¶ +8

			@@ -0,0 +1,8
		1	+ class ProblemTag < ActiveRecord::Base
		2	+ self.table_name = 'problems_tags'
		3	+
		4	+ belongs_to :problem
		5	+ belongs_to :tag
		6	+
		7	+ validates_uniqueness_of :problem_id, scope: :tag_id, message: ->(object, data) { "'#{Problem.find(data[:value]).full_name}' is already has this tag" }
		8	+ end

app/models/tag.rb created 644 ¶ +4

			@@ -0,0 +1,4
		1	+ class Tag < ActiveRecord::Base
		2	+ has_many :problems_tags, class_name: ProblemTag
		3	+ has_many :problems, through: :problems_tags
		4	+ end

app/views/contests/edit.html.haml created 644 ¶ +20

			@@ -0,0 +1,20
		1	+ %h1 Editing contest
		2	+ = form_for(@contest) do \|f\|
		3	+ = f.error_messages
		4	+ %table
		5	+ %tr
		6	+ %td= f.label :name
		7	+ %td= f.text_field :name
		8	+ %tr
		9	+ %td= f.label :title
		10	+ %td= f.text_field :title
		11	+ %tr
		12	+ %td
		13	+ %td
		14	+ = f.check_box :enabled
		15	+ = f.label :enabled
		16	+ %p
		17	+ = f.submit 'Update'
		18	+ = link_to 'Show', @contest
		19	+ \|
		20	+ = link_to 'Back', contests_path

app/views/contests/index.html.haml created 644 ¶ +27

			@@ -0,0 +1,27
		1	+ %h1 Listing contests
		2	+ .infobox
		3	+ %b Go back to:
		4	+ [#{link_to 'contest management', :controller => 'contest_management', :action => 'index'}]
		5	+ %p= link_to 'New contest', new_contest_path, class: 'btn btn-success'
		6	+ %table.table.table-striped
		7	+ %tr
		8	+ %th Name
		9	+ %th Title
		10	+ %th Enabled
		11	+ %th
		12	+ %th
		13	+ %th
		14	+
		15	+ - @contests.each do \|contest\|
		16	+ - @contest = contest
		17	+ %tr
		18	+ -#%td= in_place_editor_field :contest, :name, {}, :rows => 1
		19	+ -#%td= in_place_editor_field :contest, :title, {}, :rows => 1
		20	+ -#%td= in_place_editor_field :contest, :enabled, {}, :rows => 1
		21	+ %td= best_in_place @contest, :name
		22	+ %td= best_in_place @contest, :title
		23	+ %td= best_in_place @contest, :enabled
		24	+ %td= link_to 'Show', contest
		25	+ %td= link_to 'Edit', edit_contest_path(contest)
		26	+ %td= link_to 'Destroy', contest, :confirm => 'Are you sure?', :method => :delete
		27	+ %br/

app/views/contests/new.html.haml created 644 ¶ +18

			@@ -0,0 +1,18
		1	+ %h1 New contest
		2	+ = form_for(@contest) do \|f\|
		3	+ = f.error_messages
		4	+ %p
		5	+ = f.label :name
		6	+ %br/
		7	+ = f.text_field :name
		8	+ %p
		9	+ = f.label :title
		10	+ %br/
		11	+ = f.text_field :title
		12	+ %p
		13	+ = f.label :enabled
		14	+ %br/
		15	+ = f.check_box :enabled
		16	+ %p
		17	+ = f.submit 'Create'
		18	+ = link_to 'Back', contests_path

app/views/contests/show.html.haml created 644 ¶ +11

			@@ -0,0 +1,11
		1	+ %h1
		2	+ Contest: #{h @contest.title}
		3	+ .infobox
		4	+ %b Go back to:
		5	+ [#{link_to 'contest management', :controller => 'contest_management', :action => 'index'}]
		6	+ %p
		7	+ %b Enabled:
		8	+ = h @contest.enabled
		9	+ = link_to 'Edit', edit_contest_path(@contest)
		10	+ \|
		11	+ = link_to 'Back', contests_path

app/views/groups/_form.html.haml created 644 ¶ +16

			@@ -0,0 +1,16
		1	+ = form_for @group do \|f\|
		2	+ - if @group.errors.any?
		3	+ #error_explanation
		4	+ %h2= "#{pluralize(@group.errors.count, "error")} prohibited this group from being saved:"
		5	+ %ul
		6	+ - @group.errors.full_messages.each do \|msg\|
		7	+ %li= msg
		8	+
		9	+ .form-group.field
		10	+ = f.label :name
		11	+ = f.text_field :name, class: 'form-control'
		12	+ .form-group.field
		13	+ = f.label :description
		14	+ = f.text_field :description, class: 'form-control'
		15	+ .form-group.actions
		16	+ = f.submit 'Save', class: 'btn btn-primary'

app/views/groups/edit.html.haml created 644 ¶ +7

			@@ -0,0 +1,7
		1	+ %h1 Editing group
		2	+
		3	+ = render 'form'
		4	+
		5	+ = link_to 'Show', @group
		6	+ \\|
		7	+ = link_to 'Back', groups_path

app/views/groups/index.html.haml created 644 ¶ +22

			@@ -0,0 +1,22
		1	+ %h1 Groups
		2	+
		3	+ %p
		4	+ = link_to 'New Group', new_group_path, class: 'btn btn-primary'
		5	+ %table.table.table-hover
		6	+ %thead
		7	+ %tr
		8	+ %th Name
		9	+ %th Description
		10	+ %th
		11	+ %th
		12	+
		13	+ %tbody
		14	+ - @groups.each do \|group\|
		15	+ %tr
		16	+ %td= group.name
		17	+ %td= group.description
		18	+ %td= link_to 'View', group, class: 'btn btn-default'
		19	+ %td= link_to 'Destroy', group, :method => :delete, :data => { :confirm => 'Are you sure?' }, class: 'btn btn-danger'
		20	+
		21	+ %br
		22	+

app/views/groups/new.html.haml created 644 ¶ +5

			@@ -0,0 +1,5
		1	+ %h1 New group
		2	+
		3	+ = render 'form'
		4	+
		5	+ = link_to 'Back', groups_path

app/views/groups/show.html.haml created 644 ¶ +73

			@@ -0,0 +1,73
		1	+ %p
		2	+ %b Name:
		3	+ = @group.name
		4	+ %p
		5	+ %b Description:
		6	+ = @group.description
		7	+
		8	+ %br
		9	+ = link_to 'Edit', edit_group_path(@group)
		10	+ \\|
		11	+ = link_to 'Back', groups_path
		12	+
		13	+ .row
		14	+ .col-md-12
		15	+ %h1 Group details
		16	+ .row
		17	+ .col-md-6
		18	+ .panel.panel-default
		19	+ .panel-heading
		20	+ .panel-title Users in this group
		21	+ .panel-body
		22	+ =form_tag add_user_group_path(@group), class: 'form-inline' do
		23	+ .form-group
		24	+ =label_tag :user_id, "User"
		25	+ =select_tag :user_id, options_from_collection_for_select(User.all,'id','full_name'), class: 'select2'
		26	+ =submit_tag "Add",class: 'btn btn-primary'
		27	+
		28	+
		29	+ %table.table.table-hover
		30	+ %thead
		31	+ %tr
		32	+ %th Login
		33	+ %th Full name
		34	+ %th Remark
		35	+ %th= link_to 'Remove All', remove_all_user_group_path(@group), method: :delete, :data => { :confirm => "Remove ALL USERS from group?" }, class: 'btn btn-danger btn-sm'
		36	+
		37	+ %tbody
		38	+ - @group.users.each do \|user\|
		39	+ %tr
		40	+ %td= user.login
		41	+ %td= user.full_name
		42	+ %td= user.remark
		43	+ %td= link_to 'Remove', remove_user_group_path(@group,user), :method => :delete, :data => { :confirm => "Remove #{user.full_name}?" }, class: 'btn btn-danger btn-sm'
		44	+ .col-md-6
		45	+ .panel.panel-default
		46	+ .panel-heading
		47	+ .panel-title Problems
		48	+ .panel-body
		49	+
		50	+ =form_tag add_problem_group_path(@group), class: 'form-inline' do
		51	+ .form-group
		52	+ =label_tag :problem_id, "Problem"
		53	+ =select_tag :problem_id, options_from_collection_for_select(Problem.all,'id','full_name'), class: 'select2'
		54	+ =submit_tag "Add",class: 'btn btn-primary'
		55	+
		56	+
		57	+ %table.table.table-hover
		58	+ %thead
		59	+ %tr
		60	+ %th name
		61	+ %th Full name
		62	+ %th Full score
		63	+ %th= link_to 'Remove All', remove_all_problem_group_path(@group), method: :delete, :data => { :confirm => "Remove ALL PROBLEMS from group?" }, class: 'btn btn-danger btn-sm'
		64	+
		65	+ %tbody
		66	+ - @group.problems.each do \|problem\|
		67	+ %tr
		68	+ %td= problem.name
		69	+ %td= problem.full_name
		70	+ %td= problem.full_score
		71	+ %td= link_to 'Remove', remove_problem_group_path(@group,problem), :method => :delete, :data => { :confirm => "Remove #{problem.full_name}?" }, class: 'btn btn-danger btn-sm'
		72	+
		73	+

app/views/tags/_form.html.haml created 644 ¶ +22

			@@ -0,0 +1,22
		1	+ = form_for @tag do \|f\|
		2	+ - if @tag.errors.any?
		3	+ #error_explanation
		4	+ %h2= "#{pluralize(@tag.errors.count, "error")} prohibited this tag from being saved:"
		5	+ %ul
		6	+ - @tag.errors.full_messages.each do \|msg\|
		7	+ %li= msg
		8	+
		9	+ .row
		10	+ .col-md-6
		11	+ .form-group.field
		12	+ = f.label :name
		13	+ = f.text_field :name, class: 'form-control'
		14	+ .form-group.field
		15	+ = f.label :description
		16	+ = f.text_area :description, class: 'form-control'
		17	+ .form-group.field
		18	+ = f.label :public
		19	+ = f.text_field :public, class: 'form-control'
		20	+ .actions
		21	+ = f.submit 'Save', class: 'btn btn-primary'
		22	+ .col-md-6

app/views/tags/edit.html.haml created 644 ¶ +7

			@@ -0,0 +1,7
		1	+ %h1 Editing tag
		2	+
		3	+ = render 'form'
		4	+
		5	+ = link_to 'Show', @tag
		6	+ \\|
		7	+ = link_to 'Back', tags_path

app/views/tags/index.html.haml created 644 ¶ +26

			@@ -0,0 +1,26
		1	+ %h1 Tags
		2	+
		3	+ = link_to 'New Tag', new_tag_path, class: 'btn btn-success'
		4	+
		5	+ %table.table.table-hover
		6	+ %thead
		7	+ %tr
		8	+ %th Name
		9	+ %th Description
		10	+ %th Public
		11	+ %th
		12	+ %th
		13	+ %th
		14	+
		15	+ %tbody
		16	+ - @tags.each do \|tag\|
		17	+ %tr
		18	+ %td= tag.name
		19	+ %td= tag.description
		20	+ %td= tag.public
		21	+ %td= link_to 'Show', tag
		22	+ %td= link_to 'Edit', edit_tag_path(tag)
		23	+ %td= link_to 'Destroy', tag, :method => :delete, :data => { :confirm => 'Are you sure?' }
		24	+
		25	+ %br
		26	+

app/views/tags/new.html.haml created 644 ¶ +5

			@@ -0,0 +1,5
		1	+ %h1 New tag
		2	+
		3	+ = render 'form'
		4	+
		5	+ = link_to 'Back', tags_path

app/views/tags/show.html.haml created 644 ¶ +15

			@@ -0,0 +1,15
		1	+ %p#notice= notice
		2	+
		3	+ %p
		4	+ %b Name:
		5	+ = @tag.name
		6	+ %p
		7	+ %b Description:
		8	+ = @tag.description
		9	+ %p
		10	+ %b Public:
		11	+ = @tag.public
		12	+
		13	+ = link_to 'Edit', edit_tag_path(@tag)
		14	+ \\|
		15	+ = link_to 'Back', tags_path

app/views/user_admin/_form.html.haml created 644 ¶ +38

			@@ -0,0 +1,38
		1	+ = error_messages_for 'user'
		2	+ / [form:user]
		3	+ .form-group
		4	+ %label.col-md-2.control-label{for: :login} Login
		5	+ .col-md-4
		6	+ = text_field 'user', 'login', class: 'form-control'
		7	+ .col-md-6
		8	+ .form-group
		9	+ %label.col-md-2.control-label{for: :full_name} Full name
		10	+ .col-md-4
		11	+ = text_field 'user', 'full_name', class: 'form-control'
		12	+ .col-md-6
		13	+ .form-group
		14	+ %label.col-md-2.control-label{for: :password} Password
		15	+ .col-md-4
		16	+ = password_field 'user', 'password', class: 'form-control'
		17	+ .col-md-6
		18	+ .form-group
		19	+ %label.col-md-2.control-label{for: :password_confirmation} Password (confirm)
		20	+ .col-md-4
		21	+ = password_field 'user', 'password_confirmation', class: 'form-control'
		22	+ .col-md-6
		23	+ .form-group
		24	+ %label.col-md-2.control-label{for: :email} E-mail
		25	+ .col-md-4
		26	+ = email_field 'user', 'email', class: 'form-control'
		27	+ .col-md-6
		28	+ .form-group
		29	+ %label.col-md-2.control-label{for: :alias} Alias
		30	+ .col-md-4
		31	+ = text_field 'user', 'alias', class: 'form-control'
		32	+ .col-md-6
		33	+ .form-group
		34	+ %label.col-md-2.control-label{for: :remark} Remark
		35	+ .col-md-4
		36	+ = text_field 'user', 'remark', class: 'form-control'
		37	+ .col-md-6
		38	+ / [eoform:user]

app/views/user_admin/new.html.haml created 644 ¶ +7

			@@ -0,0 +1,7
		1	+ %h1 New user
		2	+ = form_tag( {action: 'create'}, { class: 'form-horizontal'}) do
		3	+ = render :partial => 'form'
		4	+ .form-group
		5	+ .col-md-offset-2.col-md-10
		6	+ = submit_tag "Create", class: 'btn btn-primary'
		7	+ = link_to 'Back', :action => 'index'

app/views/user_admin/show.html.haml created 644 ¶ +14

			@@ -0,0 +1,14
		1	+ %h1 User information
		2	+ - for column in User.content_columns
		3	+ %p
		4	+ %b
		5	+ = column.human_name
		6	+ \:
		7	+ = h @user.send(column.name)
		8	+ %p
		9	+ %strong Group
		10	+ \:
		11	+ = @user.groups.map{ \|x\| link_to(x.name,group_path(x)).html_safe}.join(', ').html_safe
		12	+ = link_to 'Edit', :action => 'edit', :id => @user
		13	+ \|
		14	+ = link_to 'Back', :action => 'index'

config/initializers/assets.rb created 644 ¶ +23

			@@ -0,0 +1,23
		1	+ # Be sure to restart your server when you modify this file.
		2	+
		3	+ # Version of your assets, change this if you want to expire all your assets.
		4	+ Rails.application.config.assets.version = '1.0'
		5	+
		6	+ # Add additional assets to the asset load path.
		7	+ # Rails.application.config.assets.paths << Emoji.images_path
		8	+ # Add Yarn node_modules folder to the asset load path.
		9	+ Rails.application.config.assets.paths << Rails.root.join('node_modules')
		10	+ Rails.application.config.assets.paths << Rails.root.join('vendor/assets/fonts')
		11	+
		12	+ # Precompile additional assets.
		13	+ # application.js, application.css, and all non-JS/CSS in the app/assets
		14	+ # folder are already added.
		15	+ # Rails.application.config.assets.precompile += %w( admin.js admin.css )
		16	+
		17	+ Rails.application.config.assets.precompile += ['announcement_refresh.js','effects.js','site_update.js']
		18	+ Rails.application.config.assets.precompile += ['local_jquery.js','tablesorter-theme.cafe.css']
		19	+ %w( announcements submissions configurations contests contest_management graders heartbeat
		20	+ login main messages problems report site sites sources tasks groups
		21	+ test user_admin users tags testcases).each do \|controller\|
		22	+ Rails.application.config.assets.precompile += ["#{controller}.js", "#{controller}.css"]
		23	+ end

db/migrate/20170911091143_create_groups.rb created 644 ¶ +30

			@@ -0,0 +1,30
		1	+ class CreateGroups < ActiveRecord::Migration
		2	+
		3	+ def change
		4	+ create_table :groups do \|t\|
		5	+ t.string :name
		6	+ t.string :description
		7	+ end
		8	+
		9	+ create_join_table :groups, :users do \|t\|
		10	+ # t.index [:group_id, :user_id]
		11	+ t.index [:user_id, :group_id]
		12	+ end
		13	+
		14	+ create_join_table :problems, :groups do \|t\|
		15	+ # t.index [:problem_id, :group_id]
		16	+ t.index [:group_id, :problem_id]
		17	+ end
		18	+
		19	+ reversible do \|change\|
		20	+ change.up do
		21	+ GraderConfiguration.where(key: 'system.use_problem_group').first_or_create(value_type: 'boolean', value: 'false',
		22	+ description: 'If true, available problem to the user will be only ones associated with the group of the user');
		23	+ end
		24	+
		25	+ change.down do
		26	+ GraderConfiguration.where(key: 'system.use_problem_group').destroy_all
		27	+ end
		28	+ end
		29	+ end
		30	+ end

db/migrate/20170914150545_create_tags.rb created 644 ¶ +11

			@@ -0,0 +1,11
		1	+ class CreateTags < ActiveRecord::Migration
		2	+ def change
		3	+ create_table :tags do \|t\|
		4	+ t.string :name, null: false
		5	+ t.text :description
		6	+ t.boolean :public
		7	+
		8	+ t.timestamps null: false
		9	+ end
		10	+ end
		11	+ end

db/migrate/20170914150742_create_problem_tags.rb created 644 ¶ +10

			@@ -0,0 +1,10
		1	+ class CreateProblemTags < ActiveRecord::Migration
		2	+ def change
		3	+ create_table :problems_tags do \|t\|
		4	+ t.references :problem, index: true, foreign_key: true
		5	+ t.references :tag, index: true, foreign_key: true
		6	+
		7	+ t.index [:problem_id,:tag_id], unique: true
		8	+ end
		9	+ end
		10	+ end

test/controllers/groups_controller_test.rb created 644 ¶ +49

			@@ -0,0 +1,49
		1	+ require 'test_helper'
		2	+
		3	+ class GroupsControllerTest < ActionController::TestCase
		4	+ setup do
		5	+ @group = groups(:one)
		6	+ end
		7	+
		8	+ test "should get index" do
		9	+ get :index
		10	+ assert_response :success
		11	+ assert_not_nil assigns(:groups)
		12	+ end
		13	+
		14	+ test "should get new" do
		15	+ get :new
		16	+ assert_response :success
		17	+ end
		18	+
		19	+ test "should create group" do
		20	+ assert_difference('Group.count') do
		21	+ post :create, group: { description: @group.description, name: @group.name }
		22	+ end
		23	+
		24	+ assert_redirected_to group_path(assigns(:group))
		25	+ end
		26	+
		27	+ test "should show group" do
		28	+ get :show, id: @group
		29	+ assert_response :success
		30	+ end
		31	+
		32	+ test "should get edit" do
		33	+ get :edit, id: @group
		34	+ assert_response :success
		35	+ end
		36	+
		37	+ test "should update group" do
		38	+ patch :update, id: @group, group: { description: @group.description, name: @group.name }
		39	+ assert_redirected_to group_path(assigns(:group))
		40	+ end
		41	+
		42	+ test "should destroy group" do
		43	+ assert_difference('Group.count', -1) do
		44	+ delete :destroy, id: @group
		45	+ end
		46	+
		47	+ assert_redirected_to groups_path
		48	+ end
		49	+ end

test/controllers/tags_controller_test.rb created 644 ¶ +49

			@@ -0,0 +1,49
		1	+ require 'test_helper'
		2	+
		3	+ class TagsControllerTest < ActionController::TestCase
		4	+ setup do
		5	+ @tag = tags(:one)
		6	+ end
		7	+
		8	+ test "should get index" do
		9	+ get :index
		10	+ assert_response :success
		11	+ assert_not_nil assigns(:tags)
		12	+ end
		13	+
		14	+ test "should get new" do
		15	+ get :new
		16	+ assert_response :success
		17	+ end
		18	+
		19	+ test "should create tag" do
		20	+ assert_difference('Tag.count') do
		21	+ post :create, tag: { description: @tag.description, name: @tag.name, public: @tag.public }
		22	+ end
		23	+
		24	+ assert_redirected_to tag_path(assigns(:tag))
		25	+ end
		26	+
		27	+ test "should show tag" do
		28	+ get :show, id: @tag
		29	+ assert_response :success
		30	+ end
		31	+
		32	+ test "should get edit" do
		33	+ get :edit, id: @tag
		34	+ assert_response :success
		35	+ end
		36	+
		37	+ test "should update tag" do
		38	+ patch :update, id: @tag, tag: { description: @tag.description, name: @tag.name, public: @tag.public }
		39	+ assert_redirected_to tag_path(assigns(:tag))
		40	+ end
		41	+
		42	+ test "should destroy tag" do
		43	+ assert_difference('Tag.count', -1) do
		44	+ delete :destroy, id: @tag
		45	+ end
		46	+
		47	+ assert_redirected_to tags_path
		48	+ end
		49	+ end

test/fixtures/problem_tags.yml created 644 ¶ +9

			@@ -0,0 +1,9
		1	+ # Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
		2	+
		3	+ one:
		4	+ problem_id:
		5	+ tag_id:
		6	+
		7	+ two:
		8	+ problem_id:
		9	+ tag_id:

test/fixtures/tags.yml created 644 ¶ +11

			@@ -0,0 +1,11
		1	+ # Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
		2	+
		3	+ one:
		4	+ name: MyString
		5	+ description: MyString
		6	+ public:
		7	+
		8	+ two:
		9	+ name: MyString
		10	+ description: MyString
		11	+ public:

test/models/problem_tag_test.rb created 644 ¶ +7

			@@ -0,0 +1,7
		1	+ require 'test_helper'
		2	+
		3	+ class ProblemTagTest < ActiveSupport::TestCase
		4	+ # test "the truth" do
		5	+ # assert true
		6	+ # end
		7	+ end

test/models/tag_test.rb created 644 ¶ +7

			@@ -0,0 +1,7
		1	+ require 'test_helper'
		2	+
		3	+ class TagTest < ActiveSupport::TestCase
		4	+ # test "the truth" do
		5	+ # assert true
		6	+ # end
		7	+ end

Gemfile ¶ +4 -3

               source 'https://rubygems.org'
               #rails
               gem 'rails', '~>4.2.0'
               gem 'activerecord-session_store'
               # Bundle edge Rails instead:
               # gem 'rails', :git => 'git://github.com/rails/rails.git'
               #---------------- database ---------------------
               #the database
               gem 'mysql2'
               #for testing
               gem 'sqlite3'
               #for dumping database into yaml
               gem 'yaml_db'
               # Gems used only for assets and not required
               # in production environments by default.
               gem 'sass-rails'
               gem 'coffee-rails'
                 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
                 # gem 'therubyracer', :platforms => :ruby
               gem 'uglifier'
               gem 'haml'
               gem 'haml-rails'
               # gem 'prototype-rails'
               # To use ActiveModel has_secure_password
               # gem 'bcrypt-ruby', '~> 3.0.0'
               # To use Jbuilder templates for JSON
               # gem 'jbuilder'
               # Use unicorn as the app server
               # gem 'unicorn'
               # Deploy with Capistrano
               # gem 'capistrano'
               # To use debugger
               # gem 'debugger'
               #
               #in-place editor
               gem 'best_in_place', '~> 3.0.1'
               # jquery addition
               gem 'jquery-rails'
               gem 'jquery-ui-rails'
               gem 'jquery-timepicker-addon-rails'
               gem 'jquery-tablesorter'
               gem 'jquery-countdown-rails'
               #syntax highlighter
               gem 'rouge'
-            - #add bootstrap
+            + #bootstrap add-ons
               gem 'bootstrap-sass', '~> 3.2.0'
               gem 'bootstrap-switch-rails'
               gem 'bootstrap-toggle-rails'
               gem 'autoprefixer-rails'
+            -
-            - #bootstrap sortable
               gem 'momentjs-rails'
               gem 'rails_bootstrap_sortable'
+            + gem 'bootstrap-datepicker-rails'
+            + gem 'bootstrap3-datetimepicker-rails'
+            + gem 'jquery-datatables-rails'
               #----------- user interface -----------------
               #select 2
               gem 'select2-rails'
               #ace editor
               gem 'ace-rails-ap'
               #paginator
               gem 'will_paginate', '~> 3.0.7'
               gem 'mail'
               gem 'rdiscount'
               gem 'dynamic_form'
               gem 'in_place_editing'
               gem 'verification', :git => 'https://github.com/sikachu/verification.git'
               #---------------- testiing -----------------------
               gem 'minitest-reporters'
               #---------------- for console --------------------
               gem 'fuzzy-string-match'

Gemfile.lock ¶ +13 -1

               GIT
                 remote: https://github.com/sikachu/verification.git
                 revision: ff31697b940d7b0e2ec65f08764215c96104e76d
                 specs:
                   verification (1.0.3)
                     actionpack (>= 3.0.0, < 5.1)
                     activesupport (>= 3.0.0, < 5.1)
               GEM
                 remote: https://rubygems.org/
                 specs:
                   RubyInline (3.12.4)
                     ZenTest (~> 4.3)
                   ZenTest (4.11.1)
                   ace-rails-ap (4.1.1)
                   actionmailer (4.2.7.1)
                     actionpack (= 4.2.7.1)
                     actionview (= 4.2.7.1)
                     activejob (= 4.2.7.1)
                     mail (~> 2.5, >= 2.5.4)
                     rails-dom-testing (~> 1.0, >= 1.0.5)
                   actionpack (4.2.7.1)
                     actionview (= 4.2.7.1)
                     activesupport (= 4.2.7.1)
                     rack (~> 1.6)
                     rack-test (~> 0.6.2)
                     rails-dom-testing (~> 1.0, >= 1.0.5)
                     rails-html-sanitizer (~> 1.0, >= 1.0.2)
                   actionview (4.2.7.1)
                     activesupport (= 4.2.7.1)
                     builder (~> 3.1)
                     erubis (~> 2.7.0)
                     rails-dom-testing (~> 1.0, >= 1.0.5)
                     rails-html-sanitizer (~> 1.0, >= 1.0.2)
                   activejob (4.2.7.1)
                     activesupport (= 4.2.7.1)
                     globalid (>= 0.3.0)
                   activemodel (4.2.7.1)
                     activesupport (= 4.2.7.1)
                     builder (~> 3.1)
                   activerecord (4.2.7.1)
                     activemodel (= 4.2.7.1)
                     activesupport (= 4.2.7.1)
                     arel (~> 6.0)
                   activerecord-session_store (1.0.0)
                     actionpack (>= 4.0, < 5.1)
                     activerecord (>= 4.0, < 5.1)
                     multi_json (~> 1.11, >= 1.11.2)
                     rack (>= 1.5.2, < 3)
                     railties (>= 4.0, < 5.1)
                   activesupport (4.2.7.1)
                     i18n (~> 0.7)
                     json (~> 1.7, >= 1.7.7)
                     minitest (~> 5.1)
                     thread_safe (~> 0.3, >= 0.3.4)
                     tzinfo (~> 1.1)
                   ansi (1.5.0)
                   arel (6.0.4)
                   autoprefixer-rails (6.6.0)
                     execjs
                   best_in_place (3.0.3)
                     actionpack (>= 3.2)
                     railties (>= 3.2)
+            +     bootstrap-datepicker-rails (1.7.1.1)
+            +       railties (>= 3.0)
                   bootstrap-sass (3.2.0.2)
                     sass (~> 3.2)
                   bootstrap-switch-rails (3.3.3)
                   bootstrap-toggle-rails (2.2.1.0)
+            +     bootstrap3-datetimepicker-rails (4.17.47)
+            +       momentjs-rails (>= 2.8.1)
                   builder (3.2.2)
                   coffee-rails (4.2.1)
                     coffee-script (>= 2.2.0)
                     railties (>= 4.0.0, < 5.2.x)
                   coffee-script (2.4.1)
                     coffee-script-source
                     execjs
                   coffee-script-source (1.12.2)
                   concurrent-ruby (1.0.4)
                   dynamic_form (1.1.4)
                   erubis (2.7.0)
                   execjs (2.7.0)
                   fuzzy-string-match (1.0.0)
                     RubyInline (>= 3.8.6)
                   globalid (0.3.7)
                     activesupport (>= 4.1.0)
                   haml (4.0.7)
                     tilt
                   haml-rails (0.9.0)
                     actionpack (>= 4.0.1)
                     activesupport (>= 4.0.1)
                     haml (>= 4.0.6, < 5.0)
                     html2haml (>= 1.0.1)
                     railties (>= 4.0.1)
                   html2haml (2.0.0)
                     erubis (~> 2.7.0)
                     haml (~> 4.0.0)
                     nokogiri (~> 1.6.0)
                     ruby_parser (~> 3.5)
                   i18n (0.7.0)
                   in_place_editing (1.2.0)
                   jquery-countdown-rails (2.0.2)
+            +     jquery-datatables-rails (3.4.0)
+            +       actionpack (>= 3.1)
+            +       jquery-rails
+            +       railties (>= 3.1)
+            +       sass-rails
                   jquery-rails (4.2.1)
                     rails-dom-testing (>= 1, < 3)
                     railties (>= 4.2.0)
                     thor (>= 0.14, < 2.0)
                   jquery-tablesorter (1.23.3)
                     railties (>= 3.2, < 6)
                   jquery-timepicker-addon-rails (1.4.1)
                     railties (>= 3.1)
                   jquery-ui-rails (6.0.1)
                     railties (>= 3.2.16)
                   json (1.8.3)
                   loofah (2.0.3)
                     nokogiri (>= 1.5.9)
                   mail (2.6.4)
                     mime-types (>= 1.16, < 4)
                   mime-types (3.1)
                     mime-types-data (~> 3.2015)
                   mime-types-data (3.2016.0521)
                   mini_portile2 (2.1.0)
                   minitest (5.10.1)
                   minitest-reporters (1.1.13)
                     ansi
                     builder
                     minitest (>= 5.0)
                     ruby-progressbar
                   momentjs-rails (2.15.1)
                     railties (>= 3.1)
                   multi_json (1.12.1)
                   mysql2 (0.4.5)
                   nokogiri (1.6.8.1)
                     mini_portile2 (~> 2.1.0)
                   rack (1.6.5)
                   rack-test (0.6.3)
                     rack (>= 1.0)
                   rails (4.2.7.1)
                     actionmailer (= 4.2.7.1)
                     actionpack (= 4.2.7.1)
                     actionview (= 4.2.7.1)
                     activejob (= 4.2.7.1)
                     activemodel (= 4.2.7.1)
                     activerecord (= 4.2.7.1)
                     activesupport (= 4.2.7.1)
                     bundler (>= 1.3.0, < 2.0)
                     railties (= 4.2.7.1)
                     sprockets-rails
                   rails-deprecated_sanitizer (1.0.3)
                     activesupport (>= 4.2.0.alpha)
                   rails-dom-testing (1.0.8)
                     activesupport (>= 4.2.0.beta, < 5.0)
                     nokogiri (~> 1.6)
                     rails-deprecated_sanitizer (>= 1.0.1)
                   rails-html-sanitizer (1.0.3)
                     loofah (~> 2.0)
                   rails_bootstrap_sortable (2.0.1)
                     momentjs-rails (>= 2.8.3)
                   railties (4.2.7.1)
                     actionpack (= 4.2.7.1)
                     activesupport (= 4.2.7.1)
                     rake (>= 0.8.7)
                     thor (>= 0.18.1, < 2.0)
                   rake (12.0.0)
                   rdiscount (2.2.0.1)
                   rouge (2.0.7)
                   ruby-progressbar (1.8.1)
                   ruby_parser (3.8.3)
                     sexp_processor (~> 4.1)
                   sass (3.4.23)
                   sass-rails (5.0.6)
                     railties (>= 4.0.0, < 6)
                     sass (~> 3.1)
                     sprockets (>= 2.8, < 4.0)
                     sprockets-rails (>= 2.0, < 4.0)
                     tilt (>= 1.1, < 3)
                   select2-rails (4.0.3)
                     thor (~> 0.14)
                   sexp_processor (4.7.0)
                   sprockets (3.7.1)
                     concurrent-ruby (~> 1.0)
                     rack (> 1, < 3)
                   sprockets-rails (3.2.0)
                     actionpack (>= 4.0)
                     activesupport (>= 4.0)
                     sprockets (>= 3.0.0)
                   sqlite3 (1.3.12)
                   thor (0.19.4)
                   thread_safe (0.3.5)
                   tilt (2.0.5)
                   tzinfo (1.2.2)
                     thread_safe (~> 0.1)
                   uglifier (3.0.4)
                     execjs (>= 0.3.0, < 3)
                   will_paginate (3.0.12)
                   yaml_db (0.4.2)
                     rails (>= 3.0, < 5.1)
                     rake (>= 0.8.7)
               PLATFORMS
                 ruby
               DEPENDENCIES
                 ace-rails-ap
                 activerecord-session_store
                 autoprefixer-rails
                 best_in_place (~> 3.0.1)
+            +   bootstrap-datepicker-rails
                 bootstrap-sass (~> 3.2.0)
                 bootstrap-switch-rails
                 bootstrap-toggle-rails
+            +   bootstrap3-datetimepicker-rails
                 coffee-rails
                 dynamic_form
                 fuzzy-string-match
                 haml
                 haml-rails
                 in_place_editing
                 jquery-countdown-rails
+            +   jquery-datatables-rails
                 jquery-rails
                 jquery-tablesorter
                 jquery-timepicker-addon-rails
                 jquery-ui-rails
                 mail
                 minitest-reporters
                 momentjs-rails
                 mysql2
                 rails (~> 4.2.0)
                 rails_bootstrap_sortable
                 rdiscount
                 rouge
                 sass-rails
                 select2-rails
                 sqlite3
                 uglifier
                 verification!
                 will_paginate (~> 3.0.7)
                 yaml_db
               BUNDLED WITH
-            -    1.13.6
+            +    1.15.4

app/assets/javascripts/application.js ¶ +6

               // This is a manifest file that'll be compiled into application.js, which will include all the files
               // listed below.
               //
               // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
               // or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
               //
               // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
               // the compiled file.
               //
               // WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
               // GO AFTER THE REQUIRES BELOW.
               //
               //= require jquery
               //= require jquery_ujs
+            + //= require dataTables/jquery.dataTables
+            + //= require dataTables/bootstrap/3/jquery.dataTables.bootstrap
               //= require jquery-ui
               //= require bootstrap-sprockets
               //= require moment
+            + //= require moment/th
               //= require bootstrap-sortable
+            + //= require bootstrap-datetimepicker
               //= require select2
               //= require ace-rails-ap
               //= require ace/mode-c_cpp
               //= require ace/mode-python
               //= require ace/mode-ruby
               //= require ace/mode-pascal
               //= require ace/mode-javascript
               //= require ace/mode-java
               //= require ace/theme-merbivore
               //= require custom
               //= require jquery.countdown
               //-------------- addition from local_jquery -----------
               //= require jquery-tablesorter
               //= require best_in_place
               //= require best_in_place.jquery-ui
               //= require brython
+            + //= require bootstrap-datepicker
+            + //= require bootstrap-datetimepicker
               // since this is after blank line, it is not downloaded
               //x= require prototype
               //x= require prototype_ujs
               //x= require effects
               //x= require dragdrop
               //x= require controls

app/assets/stylesheets/application.css.scss ¶ +9

               /* This is a manifest file that'll be compiled into application.css, which will include all the files
                * listed below.
                *
                * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
                * or any plugin's vendor/assets/stylesheets directory can be referenced here using a relative path.
                *
                * You're free to add application-wide styles to this file and they'll appear at the bottom of the
                * compiled file so the styles you add here take precedence over styles defined in any styles
                * defined in the other CSS/SCSS files in this directory. It is generally better to create a new
                * file per style scope.
                *
                * // bootstrap says that we should not do this, but @import each file instead
                * #   *= require_tree .
                * #   *= require_self
                */
               @import "jquery-ui";
               //@import "jquery.ui.core";
               //@import "jquery.ui.theme";
               //@import "jquery.ui.datepicker";
               //@import "jquery.ui.slider";
               @import "jquery-ui-timepicker-addon";
               @import "jquery-tablesorter/theme.metro-dark";
               @import "jquery.countdown";
               @import "tablesorter-theme.cafe";
               //bootstrap
               @import "bootstrap-sprockets";
               @import "bootstrap";
               @import "select2";
               @import "select2-bootstrap";
               //@import bootstrap3-switch
               @import "bootstrap-toggle";
               @import "bootstrap-sortable";
+            + @import "bootstrap-datepicker3";
+            + @import "bootstrap-datetimepicker";
+            + @import "dataTables/bootstrap/3/jquery.dataTables.bootstrap";
               //bootstrap navbar color (from)
               $bgDefault: #19197b;
               $bgHighlight: #06064b;
               $colDefault: #8e8eb4;
               $colHighlight: #ffffff;
               $dropDown: false;
               @font-face {
                   font-family: 'Glyphicons Halflings';
                   src: font-path('bootstrap/glyphicons-halflings-regular.eot');
                   src: font-path('bootstrap/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'),
                     font-path('bootstrap/glyphicons-halflings-regular.woff') format('woff'),
                     font-path('bootstrap/glyphicons-halflings-regular.ttf') format('truetype'),
                     font-path('bootstrap/glyphicons-halflings-regular.svg#glyphicons-halflingsregular') format('svg');
               }
               .navbar-default {
                 background-color: $bgDefault;
                 border-color: $bgHighlight;
                 .navbar-brand {
                   color: $colDefault;
                   &:hover, &:focus {
                     color: $colHighlight;
                   }
                 }
                 .navbar-text {
                   color: $colDefault;
                 }
                 .navbar-nav {
                   > li {
                     > a {
                       color: $colDefault;
                       &:hover, &:focus {
                         color: $colHighlight;
                       }
                     }
                     @if $dropDown {
                       > .dropdown-menu {
                         background-color: $bgDefault;
                         > li {
                           > a {
                             color: $colDefault;
                             &:hover, &:focus {
                               color: $colHighlight;
                               background-color: $bgHighlight;
                             }
                           }
                           > .divider {
                             background-color: $bgHighlight;
                           }
                         }
                       }
                     }
                   }
                   @if $dropDown {
                     .open .dropdown-menu > .active {
                       > a, > a:hover, > a:focus {
                         color: $colHighlight;
                         background-color: $bgHighlight;
                       }
                     }
                   }
                   > .active {
                     > a, > a:hover, > a:focus {
                       color: $colHighlight;
                       background-color: $bgHighlight;
                     }
                   }
                   > .open {
                     > a, > a:hover, > a:focus {
                       color: $colHighlight;
                       background-color: $bgHighlight;
                     }
                   }
                 }
                 .navbar-toggle {
                   border-color: $bgHighlight;
                   &:hover, &:focus {
                     background-color: $bgHighlight;
                   }
                 padding-left: 10px;
                 padding-right: 10px;
                 padding-top: 5px;
                 padding-bottom: 5px;
               }
               .announcement p {
                 font-size: 12px;
                 margin: 2px;
               }
               .pub-info {
                 text-align: right;
                 font-style: italic;
                 font-size: 9px;
                 p {
                   text-align: right;
                   font-style: italic;
                   font-size: 9px;
                 }
               }
               .announcement {
                 .toggles {
                   font-weight: normal;
                   float: right;
                   font-size: 80%;
                 }
                 .announcement-title {
                   font-weight: bold;
                 }
               }
               div {
                 &.message {
                   margin: 10px 0 0;
                   div {
                     &.message {
                       margin: 0 0 0 30px;
                     }
                     &.body {
                       border: 2px solid #dddddd;
                       background: #fff8f8;
                       padding-left: 5px;
                     }
                     &.reply-body {
                       border: 2px solid #bbbbbb;
                       background: #fffff8;
                       padding-left: 5px;
                     }
                     &.stat {
                       font-size: 10px;
                       line-height: 1.75em;
                       padding: 0 5px;
                       color: #333333;
                       background: #dddddd;
                       font-weight: bold;
                     }
                     &.message div.stat {
                       font-size: 10px;
                       line-height: 1.75em;
                       padding: 0 5px;
                       color: #444444;
                       background: #bbbbbb;
                       font-weight: bold;
                     }
                   }
                 }
                 &.contest-title {
                   color: white;
                   text-align: center;
                   line-height: 2em;
                 }
                 &.registration-desc, &.test-desc {
                   border: 1px dotted gray;
                   background: #f5f5f5;
                   padding: 5px;
                   margin: 10px 0;
                   font-size: 12px;
                   line-height: 1.5em;
                 }
               }
               h2.contest-title {
                 margin-top: 5px;
                 margin-bottom: 5px;
               }
+            +
+            +
+            +
+            + .grader-comment {
+            +   word-wrap: break-word;
+            + }

app/controllers/application_controller.rb ¶ +11 -13

               class ApplicationController < ActionController::Base
                 protect_from_forgery
                 before_filter :current_user
                 SINGLE_USER_MODE_CONF_KEY = 'system.single_user_mode'
                 MULTIPLE_IP_LOGIN_CONF_KEY = 'right.multiple_ip_login'
                 #report and redirect for unauthorized activities
                 def unauthorized_redirect
                   flash[:notice] = 'You are not authorized to view the page you requested'
                   redirect_to :controller => 'main', :action => 'login'
                 end
                 # Returns the current logged-in user (if any).
                 def current_user
                   return nil unless session[:user_id]
                   @current_user ||= User.find(session[:user_id])
                 end
                 def admin_authorization
                   return false unless authenticate
                   user = User.includes(:roles).find(session[:user_id])
                   unless user.admin?
                     unauthorized_redirect
                     return false
                   end
                   return true
                 end
                 def authorization_by_roles(allowed_roles)
                   return false unless authenticate
                   user = User.find(session[:user_id])
                   unless user.roles.detect { |role| allowed_roles.member?(role.name) }
                     unauthorized_redirect
                     return false
                   end
                 end
                 def testcase_authorization
                   #admin always has privileged
-            -     puts "haha"
                   if @current_user.admin?
                     return true
                   end
-            -     puts "hehe"
-            -     puts GraderConfiguration["right.view_testcase"]
                   unauthorized_redirect unless GraderConfiguration["right.view_testcase"]
                 end
                 protected
                 def authenticate
                   unless session[:user_id]
                     flash[:notice] = 'You need to login'
                     if GraderConfiguration[SINGLE_USER_MODE_CONF_KEY]
                       flash[:notice] = 'You need to login but you cannot log in at this time'
                     end
                     redirect_to :controller => 'main', :action => 'login'
                     return false
                   end
+            +
                   # check if run in single user mode
                   if GraderConfiguration[SINGLE_USER_MODE_CONF_KEY]
-            -       user = User.find_by_id(session[:user_id])
-            -       if user==nil or (not user.admin?)
+            +       if @current_user==nil or (not @current_user.admin?)
                       flash[:notice] = 'You cannot log in at this time'
                       redirect_to :controller => 'main', :action => 'login'
                       return false
                     end
-            -       unless user.enabled?
-            -         flash[:notice] = 'Your account is disabled'
-            -         redirect_to :controller => 'main', :action => 'login'
-            -         return false
-            -       end
                     return true
                   end
+            +     # check if the user is enabled
+            +     unless @current_user.enabled? or @current_user.admin?
+            +       flash[:notice] = 'Your account is disabled'
+            +       redirect_to :controller => 'main', :action => 'login'
+            +       return false
+            +     end
+            +
                   if GraderConfiguration.multicontests?
-            -       user = User.find(session[:user_id])
-            -       return true if user.admin?
+            +       return true if @current_user.admin?
                     begin
-            -         if user.contest_stat(true).forced_logout
+            +         if @current_user.contest_stat(true).forced_logout
                         flash[:notice] = 'You have been automatically logged out.'
                         redirect_to :controller => 'main', :action => 'index'
                       end
                     rescue
                     end
                   end
                   return true
                 end
                 def authenticate_by_ip_address
                   #this assume that we have already authenticate normally
                   unless GraderConfiguration[MULTIPLE_IP_LOGIN_CONF_KEY]
                     user = User.find(session[:user_id])
                     if (not user.admin? and user.last_ip and user.last_ip != request.remote_ip)
                       flash[:notice] = "You cannot use the system from #{request.remote_ip}. Your last ip is #{user.last_ip}"
                       redirect_to :controller => 'main', :action => 'login'
                       puts "CHEAT: user #{user.login} tried to login from '#{request.remote_ip}' while last ip is '#{user.last_ip}' at #{Time.zone.now}"
                       return false
                     end
                     unless user.last_ip
                       user.last_ip = request.remote_ip
                       user.save
                     end
                   end
                   return true
                 end
                 def authorization
                   return false unless authenticate
                   user = User.find(session[:user_id])
                   unless user.roles.detect { |role|
                       role.rights.detect{ |right|
                         right.controller == self.class.controller_name and
                           (right.action == 'all' or right.action == action_name)
                       }
                     }
                     flash[:notice] = 'You are not authorized to view the page you requested'
                     #request.env['HTTP_REFERER'] ? (redirect_to :back) : (redirect_to :controller => 'login')
                     redirect_to :controller => 'main', :action => 'login'
                     return false
                   end
                 end
                 def verify_time_limit
                   return true if session[:user_id]==nil
                   user = User.find(session[:user_id], :include => :site)
                   return true if user==nil or user.site == nil
                   if user.contest_finished?
                     flash[:notice] = 'Error: the contest you are participating is over.'
                     redirect_to :back
                     return false
                   end
                   return true
                 end
               end

app/controllers/graders_controller.rb ¶ +1 -36

               class GradersController < ApplicationController
-            -   before_filter :admin_authorization, except: [ :submission ]
-            -   before_filter(only: [:submission]) {
-            -     #check if authenticated
-            -     return false unless authenticate
+            -
-            -     #admin always has privileged
-            -     if @current_user.admin?
-            -       return true
-            -     end
+            -
-            -     if GraderConfiguration["right.user_view_submission"] and Submission.find(params[:id]).problem.available?
-            -       return true
-            -     else
-            -       unauthorized_redirect
-            -       return false
-            -     end
-            -   }
+            +   before_filter :admin_authorization
                 verify :method => :post, :only => ['clear_all',
                                                    'start_exam',
                                                    'start_grading',
                                                    'stop_all',
                                                    'clear_terminated'],
                        :redirect_to => {:action => 'index'}
                 def index
                   redirect_to :action => 'list'
                 end
                 def list
                   @grader_processes = GraderProcess.find_running_graders
                   @stalled_processes = GraderProcess.find_stalled_process
                   @terminated_processes = GraderProcess.find_terminated_graders
                   @last_task = Task.last
                   @last_test_request = TestRequest.last
                   @submission = Submission.order("id desc").limit(20)
                   @backlog_submission = Submission.where('graded_at is null')
                 end
                 def clear
                   grader_proc = GraderProcess.find(params[:id])
                   grader_proc.destroy if grader_proc!=nil
                   redirect_to :action => 'list'
                 end
                 def clear_terminated
                   GraderProcess.find_terminated_graders.each do |p|
                     p.destroy
                   end
                   redirect_to :action => 'list'
                 end
                 def clear_all
                   GraderProcess.all.each do |p|
                     p.destroy
                   end
                   redirect_to :action => 'list'
                 end
                 def view
                   if params[:type]=='Task'
                     redirect_to :action => 'task', :id => params[:id]
                   else
                     redirect_to :action => 'test_request', :id => params[:id]
                   end
                 end
                 def test_request
                   @test_request = TestRequest.find(params[:id])
                 end
                 def task
                   @task = Task.find(params[:id])
                 end
-            -   def submission
-            -     @submission = Submission.find(params[:id])
-            -     formatter = Rouge::Formatters::HTML.new(css_class: 'highlight', line_numbers: true )
-            -     lexer = case @submission.language.name
-            -       when "c"      then Rouge::Lexers::C.new
-            -       when "cpp"    then Rouge::Lexers::Cpp.new
-            -       when "pas"    then Rouge::Lexers::Pas.new
-            -       when "ruby"   then Rouge::Lexers::Ruby.new
-            -       when "python" then Rouge::Lexers::Python.new
-            -       when "java"   then Rouge::Lexers::Java.new
-            -       when "php"    then Rouge::Lexers::PHP.new
-            -     end
-            -     @formatted_code = formatter.format(lexer.lex(@submission.source))
-            -     @css_style = Rouge::Themes::ThankfulEyes.render(scope: '.highlight')
+            -
-            -     user = User.find(session[:user_id])
-            -     SubmissionViewLog.create(user_id: session[:user_id],submission_id: @submission.id) unless user.admin?
+            -
-            -   end
                 # various grader controls
                 def stop
                   grader_proc = GraderProcess.find(params[:id])
                   GraderScript.stop_grader(grader_proc.pid)
                   flash[:notice] = 'Grader stopped.  It may not disappear now, but it should disappear shortly.'
                   redirect_to :action => 'list'
                 end
                 def stop_all
                   GraderScript.stop_graders(GraderProcess.find_running_graders +
                                             GraderProcess.find_stalled_process)
                   flash[:notice] = 'Graders stopped.  They may not disappear now, but they should disappear shortly.'
                   redirect_to :action => 'list'
                 end
                 def start_grading
                   GraderScript.start_grader('grading')
                   flash[:notice] = '2 graders in grading env started, one for grading queue tasks, another for grading test request'
                   redirect_to :action => 'list'
                 end
                 def start_exam
                   GraderScript.start_grader('exam')
                   flash[:notice] = '2 graders in grading env started, one for grading queue tasks, another for grading test request'
                   redirect_to :action => 'list'
                 end
               end

app/controllers/login_controller.rb ¶ +12 -6

               class LoginController < ApplicationController
                 def index
                   # show login screen
                   reset_session
                   redirect_to :controller => 'main', :action => 'login'
                 end
                 def login
-            -     if (!GraderConfiguration['right.bypass_agreement']) and (!params[:accept_agree])
+            +     user = User.authenticate(params[:login], params[:password])
+            +     unless user
+            +       flash[:notice] = 'Wrong password'
+            +       redirect_to :controller => 'main', :action => 'login'
+            +       return
+            +     end
+            +
+            +     if (!GraderConfiguration['right.bypass_agreement']) and (!params[:accept_agree]) and !user.admin?
                     flash[:notice] = 'You must accept the agreement before logging in'
                     redirect_to :controller => 'main', :action => 'login'
-            -     elsif user = User.authenticate(params[:login], params[:password])
+            +       return
+            +     end
+            +
+            +     #process logging in
-                    session[:user_id] = user.id
-                    session[:admin] = user.admin?
-                    # clear forced logout flag for multicontests contest change
-                    if GraderConfiguration.multicontests?
-                      contest_stat = user.contest_stat
-                      if contest_stat.respond_to? :forced_logout
-                        if contest_stat.forced_logout
-                          contest_stat.forced_logout = false
-                          contest_stat.save
-                        end
-                      end
-                    end
-                    #save login information
-                    Login.create(user_id: user.id, ip_address: request.remote_ip)
-                    redirect_to :controller => 'main', :action => 'list'
-            -     else
-            -       flash[:notice] = 'Wrong password'
-            -       redirect_to :controller => 'main', :action => 'login'
-            -     end
                 end
                 def site_login
                   begin
                     site = Site.find(params[:login][:site_id])
                   rescue ActiveRecord::RecordNotFound
                     site = nil
                   end
                   if site==nil
                     flash[:notice] = 'Wrong site'
                     redirect_to :controller => 'main', :action => 'login'  and return
                   end
                   if (site.password) and (site.password == params[:login][:password])
                     session[:site_id] = site.id
                     redirect_to :controller => 'site', :action => 'index'
                   else
                     flash[:notice] = 'Wrong site password'
                     redirect_to :controller => 'site', :action => 'login'
                   end
                 end
               end

app/controllers/main_controller.rb ¶ +2 -2

               class MainController < ApplicationController
                 before_filter :authenticate, :except => [:index, :login]
                 before_filter :check_viewability, :except => [:index, :login]
                 append_before_filter :confirm_and_update_start_time,
                                      :except => [:index,
                                                  :login,
                                                  :confirm_contest_start]
                 # to prevent log in box to be shown when user logged out of the
                 # system only in some tab
                 prepend_before_filter :reject_announcement_refresh_when_logged_out,
                                       :only => [:announcements]
                 before_filter :authenticate_by_ip_address, :only => [:list]
                 # COMMENTED OUT: filter in each action instead
                 # before_filter :verify_time_limit, :only => [:submit]
                 verify :method => :post, :only => [:submit],
                        :redirect_to => { :action => :index }
                 # COMMENT OUT: only need when having high load
                 # caches_action :index, :login
                 # NOTE: This method is not actually needed, 'config/routes.rb' has
                 # assigned action login as a default action.
                 def index
                   redirect_to :action => 'login'
                 end
                 def login
                   saved_notice = flash[:notice]
                   reset_session
                   flash.now[:notice] = saved_notice
                   # EXPERIMENT:
                   # Hide login if in single user mode and the url does not
                   # explicitly specify /login
                   #
                   # logger.info "PATH: #{request.path}"
                   # if GraderConfiguration['system.single_user_mode'] and
                   #     request.path!='/main/login'
                   #   @hidelogin = true
                   # end
                   @announcements = Announcement.frontpage
                   render :action => 'login', :layout => 'empty'
                 end
                 def list
                   prepare_list_information
                 end
                 def help
                   @user = User.find(session[:user_id])
                 end
                 def submit
                   user = User.find(session[:user_id])
                   @submission = Submission.new
                   @submission.problem_id = params[:submission][:problem_id]
                   @submission.user = user
                   @submission.language_id = 0
                   if (params['file']) and (params['file']!='')
                     @submission.source = File.open(params['file'].path,'r:UTF-8',&:read)
                     @submission.source.encode!('UTF-8','UTF-8',invalid: :replace, replace: '')
                     @submission.source_filename = params['file'].original_filename
                   end
                   if (params[:editor_text])
                     language = Language.find_by_id(params[:language_id])
                     @submission.source = params[:editor_text]
                     @submission.source_filename = "live_edit.#{language.ext}"
                     @submission.language = language
                   end
                   @submission.submitted_at = Time.new.gmtime
                   @submission.ip_address = request.remote_ip
                   if GraderConfiguration.time_limit_mode? and user.contest_finished?
                     @submission.errors.add(:base,"The contest is over.")
                     prepare_list_information
                     render :action => 'list' and return
                   end
-            -     if @submission.valid?
+            +     if @submission.valid?(@current_user)
                     if @submission.save == false
                       flash[:notice] = 'Error saving your submission'
                     elsif Task.create(:submission_id => @submission.id,
                                       :status => Task::STATUS_INQUEUE) == false
                       flash[:notice] = 'Error adding your submission to task queue'
                     end
                   else
                     prepare_list_information
                     render :action => 'list' and return
                   end
-            -     redirect_to :action => 'list'
+            +     redirect_to edit_submission_path(@submission)
                 end
                 def source
                   submission = Submission.find(params[:id])
                   if ((submission.user_id == session[:user_id]) and
                       (submission.problem != nil) and
                       (submission.problem.available))
                     send_data(submission.source,
                               {:filename => submission.download_filename,
                                 :type => 'text/plain'})
                   else
                     flash[:notice] = 'Error viewing source'
                     redirect_to :action => 'list'
                   end
                 end
                 def compiler_msg
                   @submission = Submission.find(params[:id])
                   if @submission.user_id == session[:user_id]
                     render :action => 'compiler_msg', :layout => 'empty'
                   else
                     flash[:notice] = 'Error viewing source'
                     redirect_to :action => 'list'
                   end
                 end
                 def result
                   if !GraderConfiguration.show_grading_result
                     redirect_to :action => 'list' and return
                   end
                   @user = User.find(session[:user_id])
                   @submission = Submission.find(params[:id])
                   if @submission.user!=@user
                     flash[:notice] = 'You are not allowed to view result of other users.'
                     redirect_to :action => 'list' and return
                   end
                   prepare_grading_result(@submission)
                 end
                 def load_output
                   if !GraderConfiguration.show_grading_result or params[:num]==nil
                     redirect_to :action => 'list' and return
                   end
                   @user = User.find(session[:user_id])
                   @submission = Submission.find(params[:id])
                   if @submission.user!=@user
                     flash[:notice] = 'You are not allowed to view result of other users.'
                     redirect_to :action => 'list' and return
                   end
                   case_num = params[:num].to_i
                   out_filename = output_filename(@user.login,
                                                  @submission.problem.name,
                                                  @submission.id,
                                                  case_num)
                   if !FileTest.exists?(out_filename)
                     flash[:notice] = 'Output not found.'
                     redirect_to :action => 'list' and return
                   end
                   if defined?(USE_APACHE_XSENDFILE) and USE_APACHE_XSENDFILE
                     response.headers['Content-Type'] = "application/force-download"
                     response.headers['Content-Disposition'] = "attachment; filename=\"output-#{case_num}.txt\""
                     response.headers["X-Sendfile"] = out_filename
                     response.headers['Content-length'] = File.size(out_filename)
                     render :nothing => true
                   else
                     send_file out_filename, :stream => false, :filename => "output-#{case_num}.txt", :type => "text/plain"
                   end
                 end
                 def error
                   @user = User.find(session[:user_id])
                 end
                 # announcement refreshing and hiding methods
                 def announcements
                   if params.has_key? 'recent'
                     prepare_announcements(params[:recent])
                   else
                     prepare_announcements
                   end
                   render(:partial => 'announcement',
                          :collection => @announcements,
                          :locals => {:announcement_effect => true})
                 end
                 def confirm_contest_start
                   user = User.find(session[:user_id])
                   if request.method == 'POST'
                     user.update_start_time
                     redirect_to :action => 'list'
                   else
                     @contests = user.contests
                     @user = user
                   end

app/controllers/problems_controller.rb ¶ +22 -6

                   @problem = Problem.find(params[:id])
                   @description = @problem.description
                   if @description.nil? and params[:description][:body]!=''
                     @description = Description.new(params[:description])
                     if !@description.save
                       flash[:notice] = 'Error saving description'
                       render :action => 'edit' and return
                     end
                     @problem.description = @description
                   elsif @description
                     if !@description.update_attributes(params[:description])
                       flash[:notice] = 'Error saving description'
                       render :action => 'edit' and return
                     end
                   end
                   if params[:file] and params[:file].content_type != 'application/pdf'
                       flash[:notice] = 'Error: Uploaded file is not PDF'
                       render :action => 'edit' and return
                   end
                   if @problem.update_attributes(problem_params)
                     flash[:notice] = 'Problem was successfully updated.'
                     unless params[:file] == nil or params[:file] == ''
                       flash[:notice] = 'Problem was successfully updated and a new PDF file is uploaded.'
                       out_dirname = "#{Problem.download_file_basedir}/#{@problem.id}"
                       if not FileTest.exists? out_dirname
                         Dir.mkdir out_dirname
                       end
                       out_filename = "#{out_dirname}/#{@problem.name}.pdf"
                       if FileTest.exists? out_filename
                         File.delete out_filename
                       end
                       File.open(out_filename,"wb") do |file|
                         file.write(params[:file].read)
                       end
                       @problem.description_filename = "#{@problem.name}.pdf"
                       @problem.save
                     end
                     redirect_to :action => 'show', :id => @problem
                   else
                     render :action => 'edit'
                   end
                 end
                 def destroy
                   p = Problem.find(params[:id]).destroy
                   redirect_to action: :index
                 end
                 def toggle
                   @problem = Problem.find(params[:id])
                   @problem.update_attributes(available: !(@problem.available) )
                   respond_to do |format|
                     format.js { }
                   end
                 end
                 def toggle_test
                   @problem = Problem.find(params[:id])
                   @problem.update_attributes(test_allowed: !(@problem.test_allowed?) )
                   respond_to do |format|
                     format.js { }
                   end
                 end
                 def toggle_view_testcase
                   @problem = Problem.find(params[:id])
                   @problem.update_attributes(view_testcase: !(@problem.view_testcase?) )
                   respond_to do |format|
                     format.js { }
                   end
                 end
                 def turn_all_off
                   Problem.available.all.each do |problem|
                     problem.available = false
                     problem.save
                   end
                   redirect_to action: :index
                 end
                 def turn_all_on
                   Problem.where.not(available: true).each do |problem|
                     problem.available = true
                     problem.save
                   end
                   redirect_to action: :index
                 end
                 def stat
                   @problem = Problem.find(params[:id])
                   unless @problem.available or session[:admin]
                     redirect_to :controller => 'main', :action => 'list'
                     return
                   end
-            -     @submissions = Submission.includes(:user).where(problem_id: params[:id]).order(:user_id,:id)
+            +     @submissions = Submission.includes(:user).includes(:language).where(problem_id: params[:id]).order(:user_id,:id)
                   #stat summary
                   range =65
                   @histogram = { data: Array.new(range,0), summary: {} }
                   user = Hash.new(0)
                   @submissions.find_each do |sub|
                     d = (DateTime.now.in_time_zone - sub.submitted_at) / 24 / 60 / 60
                     @histogram[:data][d.to_i] += 1 if d < range
                     user[sub.user_id] = [user[sub.user_id], ((sub.try(:points) || 0) >= @problem.full_score) ? 1 : 0].max
                   end
                   @histogram[:summary][:max] = [@histogram[:data].max,1].max
                   @summary = { attempt: user.count, solve: 0 }
                   user.each_value { |v| @summary[:solve] += 1 if v == 1 }
                 end
                 def manage
                   @problems = Problem.order(date_added: :desc)
                 end
                 def do_manage
                   if params.has_key? 'change_date_added'
                     change_date_added
                   elsif params.has_key? 'add_to_contest'
                     add_to_contest
                   elsif params.has_key? 'enable_problem'
                     set_available(true)
                   elsif params.has_key? 'disable_problem'
                     set_available(false)
+            +     elsif params.has_key? 'add_group'
+            +       group = Group.find(params[:group_id])
+            +       ok = []
+            +       failed = []
+            +       get_problems_from_params.each do |p|
+            +         begin
+            +           group.problems << p
+            +           ok << p.full_name
+            +         rescue => e
+            +           failed << p.full_name
                   end
+            +       end
+            +       flash[:success] = "The following problems are added to the group #{group.name}: " + ok.join(', ') if ok.count > 0
+            +       flash[:alert] = "The following problems are already in the group #{group.name}: " + failed.join(', ') if failed.count > 0
+            +     elsif params.has_key? 'add_tags'
+            +       get_problems_from_params.each do |p|
+            +         p.tag_ids += params[:tag_ids]
+            +       end
+            +     end
+            +
                   redirect_to :action => 'manage'
                 end
                 def import
                   @allow_test_pair_import = allow_test_pair_import?
                 end
                 def do_import
                   old_problem = Problem.find_by_name(params[:name])
                   if !allow_test_pair_import? and params.has_key? :import_to_db
                     params.delete :import_to_db
                   end
                   @problem, import_log = Problem.create_from_import_form_params(params,
                                                                                 old_problem)
                   if !@problem.errors.empty?
                     render :action => 'import' and return
                   end
                   if old_problem!=nil
                     flash[:notice] = "The test data has been replaced for problem #{@problem.name}"
                   end
                   @log = import_log
                 end
                 def remove_contest
                   problem = Problem.find(params[:id])
                   contest = Contest.find(params[:contest_id])
                   if problem!=nil and contest!=nil
                     problem.contests.delete(contest)
                   end
                   redirect_to :action => 'manage'
                 end
                 ##################################
                 protected
                 def allow_test_pair_import?
                   if defined? ALLOW_TEST_PAIR_IMPORT
                     return ALLOW_TEST_PAIR_IMPORT
                   else
                     return false
                   end
                 end
                 def change_date_added
                   problems = get_problems_from_params
-            -     year = params[:date_added][:year].to_i
-            -     month = params[:date_added][:month].to_i
-            -     day = params[:date_added][:day].to_i
-            -     date = Date.new(year,month,day)
+            +     date = Date.parse(params[:date_added])
                   problems.each do |p|
                     p.date_added = date
                     p.save
                   end
                 end
                 def add_to_contest
                   problems = get_problems_from_params
                   contest = Contest.find(params[:contest][:id])
                   if contest!=nil and contest.enabled
                     problems.each do |p|
                       p.contests << contest
                     end
                   end
                 end
                 def set_available(avail)
                   problems = get_problems_from_params
                   problems.each do |p|
                     p.available = avail
                     p.save
                   end
                 end
                 def get_problems_from_params
                   problems = []
                   params.keys.each do |k|
                     if k.index('prob-')==0
                       name, id, order = k.split('-')
                       problems << Problem.find(id)
                     end
                   end
                   problems
                 end
                 def get_problems_stat
                 end
                 private
                   def problem_params
-            -       params.require(:problem).permit(:name, :full_name, :full_score, :date_added, :available, :test_allowed,:output_only, :url, :description)
+            +       params.require(:problem).permit(:name, :full_name, :full_score, :date_added, :available, :test_allowed,:output_only, :url, :description, tag_ids:[])
                   end
               end

app/controllers/report_controller.rb ¶ +2

               require 'csv'
               class ReportController < ApplicationController
                 before_filter :authenticate
                 before_filter :admin_authorization, only: [:login_stat,:submission_stat, :stuck, :cheat_report, :cheat_scruntinize, :show_max_score]
                 before_filter(only: [:problem_hof]) { |c|
                   return false unless authenticate
                   admin_authorization unless GraderConfiguration["right.user_view_submission"]
                 }
                 def max_score
                 end
                 def current_score
                   @problems = Problem.available_problems
                   @users = User.includes(:contests).includes(:contest_stat).where(enabled: true)
                   @scorearray = calculate_max_score(@problems, @users,0,0,true)
                   #rencer accordingly
                   if params[:button] == 'download' then
                     csv = gen_csv_from_scorearray(@scorearray,@problems)
                     send_data csv, filename: 'max_score.csv'
                   else
                     #render template: 'user_admin/user_stat'
                     render 'current_score'
                   end
                 end
                 def show_max_score
                   #process parameters
                   #problems
                   @problems = []
                   if params[:problem_id]
                     params[:problem_id].each do |id|
                       next unless id.strip != ""
                       pid = Problem.find_by_id(id.to_i)
                       @problems << pid if pid
                     end
                   end
                   #users
                   @users = if params[:user] == "all" then
                              User.includes(:contests).includes(:contest_stat)
                            else
                              User.includes(:contests).includes(:contest_stat).where(enabled: true)
                            end
                   #set up range from param
                   @since_id = params.fetch(:from_id, 0).to_i
                   @until_id = params.fetch(:to_id, 0).to_i
+            +     @since_id = nil if @since_id == 0
+            +     @until_id = nil if @until_id == 0
                   #calculate the routine
                   @scorearray = calculate_max_score(@problems, @users, @since_id, @until_id)
                   #rencer accordingly
                   if params[:button] == 'download' then
                     csv = gen_csv_from_scorearray(@scorearray,@problems)
                     send_data csv, filename: 'max_score.csv'
                   else
                     #render template: 'user_admin/user_stat'
                     render 'max_score'
                   end
                 end
                 def score
                   if params[:commit] == 'download csv'
                     @problems = Problem.all
                   else
                     @problems = Problem.available_problems
                   end
                   @users = User.includes(:contests, :contest_stat).where(enabled: true)
                   @scorearray = Array.new
                   @users.each do |u|
                     ustat = Array.new
                     ustat[0] = u
                     @problems.each do |p|
                       sub = Submission.find_last_by_user_and_problem(u.id,p.id)
                       if (sub!=nil) and (sub.points!=nil) and p and p.full_score
                         ustat << [(sub.points.to_f*100/p.full_score).round, (sub.points>=p.full_score)]
                       else
                         ustat << [0,false]
                       end
                     end
                     @scorearray << ustat
                   end
                   if params[:commit] == 'download csv' then
                     csv = gen_csv_from_scorearray(@scorearray,@problems)
                     send_data csv, filename: 'last_score.csv'
                   else
                     render template: 'user_admin/user_stat'
                   end
                 end
                 def login_stat
                   @logins = Array.new
                   date_and_time = '%Y-%m-%d %H:%M'
                   begin
                     md = params[:since_datetime].match(/(\d+)-(\d+)-(\d+) (\d+):(\d+)/)
                     @since_time = Time.zone.local(md[1].to_i,md[2].to_i,md[3].to_i,md[4].to_i,md[5].to_i)
                   rescue
                     @since_time = DateTime.new(1000,1,1)
                   end
                   begin
                     md = params[:until_datetime].match(/(\d+)-(\d+)-(\d+) (\d+):(\d+)/)
                     @until_time = Time.zone.local(md[1].to_i,md[2].to_i,md[3].to_i,md[4].to_i,md[5].to_i)
                   rescue
                     @until_time = DateTime.new(3000,1,1)
                   end
                   User.all.each do |user|
                     @logins << { id: user.id,
                                  login: user.login,
                                  full_name: user.full_name,
                                  count: Login.where("user_id = ? AND created_at >= ? AND created_at <= ?",
                                                     user.id,@since_time,@until_time)
                                         .count(:id),
                                  min: Login.where("user_id = ? AND created_at >= ? AND created_at <= ?",
                                                     user.id,@since_time,@until_time)
                                         .minimum(:created_at),
                                  max: Login.where("user_id = ? AND created_at >= ? AND created_at <= ?",
                                                     user.id,@since_time,@until_time)
                                         .maximum(:created_at),
                                   ip: Login.where("user_id = ? AND created_at >= ? AND created_at <= ?",
                                                     user.id,@since_time,@until_time)
                                         .select(:ip_address).uniq
                                }
                   end
                 end
                 def submission_stat
                   date_and_time = '%Y-%m-%d %H:%M'
                   begin
                     @since_time = DateTime.strptime(params[:since_datetime],date_and_time)
                   rescue
                     @since_time = DateTime.new(1000,1,1)
                   end
                   begin
                     @until_time = DateTime.strptime(params[:until_datetime],date_and_time)
                   rescue
                     @until_time = DateTime.new(3000,1,1)
                   end

app/controllers/submissions_controller.rb ¶ +10 -3

               class SubmissionsController < ApplicationController
                 before_action :authenticate
-            -   before_action :submission_authorization, only: [:show, :direct_edit_submission, :download, :edit]
+            +   before_action :submission_authorization, only: [:show, :download, :edit]
                 before_action :admin_authorization, only: [:rejudge]
                 # GET /submissions
                 # GET /submissions.json
                 # Show problem selection and user's submission of that problem
                 def index
                   @user = @current_user
                   @problems = @user.available_problems
                   if params[:problem_id]==nil
                     @problem = nil
                     @submissions = nil
                   else
                     @problem = Problem.find_by_id(params[:problem_id])
                     if (@problem == nil) or (not @problem.available)
                       redirect_to main_list_path
                       flash[:notice] = 'Error: submissions for that problem are not viewable.'
                       return
                     end
                     @submissions = Submission.find_all_by_user_problem(@user.id, @problem.id).order(id: :desc)
                   end
                 end
                 # GET /submissions/1
                 # GET /submissions/1.json
                 def show
                   @submission = Submission.find(params[:id])
                   #log the viewing
                   user = User.find(session[:user_id])
                   SubmissionViewLog.create(user_id: session[:user_id],submission_id: @submission.id) unless user.admin?
                   @task = @submission.task
                 end
                 def download
                   @submission = Submission.find(params[:id])
                   send_data(@submission.source, {:filename => @submission.download_filename, :type => 'text/plain'})
                 end
                 def compiler_msg
                   @submission = Submission.find(params[:id])
                   respond_to do |format|
                     format.js
                   end
                 end
                 #on-site new submission on specific problem
                 def direct_edit_problem
                   @problem = Problem.find(params[:problem_id])
+            +     unless @current_user.can_view_problem?(@problem)
+            +       unauthorized_redirect
+            +       return
+            +     end
                   @source = ''
+            +     if (params[:view_latest])
+            +       sub = Submission.find_last_by_user_and_problem(@current_user.id,@problem.id)
+            +       @source = @submission.source.to_s if @submission and @submission.source
+            +     end
                   render 'edit'
                 end
                 # GET /submissions/1/edit
                 def edit
                   @submission = Submission.find(params[:id])
                   @source = @submission.source.to_s
                   @problem = @submission.problem
                   @lang_id = @submission.language.id
                 end
                 def get_latest_submission_status
                   @problem = Problem.find(params[:pid])
                   @submission = Submission.find_last_by_user_and_problem(params[:uid],params[:pid])
                   puts User.find(params[:uid]).login
                   puts Problem.find(params[:pid]).name
                   puts 'nil' unless @submission
                   respond_to do |format|
                     format.js
                   end
                 end
                 # GET /submissions/:id/rejudge
                 def rejudge
                   @submission = Submission.find(params[:id])
                   @task = @submission.task
                   @task.status_inqueue! if @task
                   respond_to do |format|
                     format.js
                   end
                 end
               protected
                 def submission_authorization
                   #admin always has privileged
                   if @current_user.admin?
                     return true
                   end
                   sub = Submission.find(params[:id])
-            -     if sub.problem.available?
-            -       puts "sub = #{sub.user.id}, current = #{@current_user.id}"
+            +     if @current_user.available_problems.include? sub.problem
                     return true if GraderConfiguration["right.user_view_submission"] or sub.user == @current_user
                   end
                   #default to NO
                   unauthorized_redirect
                   return false
                 end
               end

app/controllers/tasks_controller.rb ¶ +1 -1

               class TasksController < ApplicationController
                 before_filter :authenticate, :check_viewability
                 def index
                   redirect_to :action => 'list'
                 end
                 def list
                   @problems = @user.available_problems
                 end
                 # this has contest-wide access control
                 def view
                   base_name = params[:file]
                   base_filename = File.basename("#{base_name}.#{params[:ext]}")
                   filename = "#{Problem.download_file_basedir}/#{base_filename}"
                   if !FileTest.exists?(filename)
                     redirect_to :action => 'index' and return
                   end
                   send_file_to_user(filename, base_filename)
                 end
                 # this has problem-level access control
                 def download
                   problem = Problem.find(params[:id])
-            -     if !problem or !problem.available or !@user.can_view_problem? problem
+            +     unless @current_user.can_view_problem? problem
                     redirect_to :action => 'index' and return
                   end
                   base_name = params[:file]
                   base_filename = File.basename("#{base_name}.#{params[:ext]}")
                   filename = "#{Problem.download_file_basedir}/#{params[:id]}/#{base_filename}"
                   puts "SENDING: #{filename}"
                   if !FileTest.exists?(filename)
                     redirect_to :action => 'index' and return
                   end
                   puts "SENDING: #{filename}"
                   send_file_to_user(filename, base_filename)
                 end
                 protected
                 def send_file_to_user(filename, base_filename)
                   if defined?(USE_APACHE_XSENDFILE) and USE_APACHE_XSENDFILE
                     response.headers['Content-Type'] = "application/force-download"
                     response.headers['Content-Disposition'] = "attachment; filename=\"#{File.basename(filename)}\""
                     response.headers["X-Sendfile"] = filename
                     response.headers['Content-length'] = File.size(filename)
                     render :nothing => true
                   else
                     if params[:ext]=='pdf'
                       content_type = 'application/pdf'
                     else
                       content_type = 'application/octet-stream'
                     end
                     send_file filename, :stream => false, :disposition => 'inline', :filename => base_filename, :type => content_type
                   end
                 end
                 def check_viewability
                   @user = User.find(session[:user_id])
                   if @user==nil or !GraderConfiguration.show_tasks_to?(@user)
                     redirect_to :controller => 'main', :action => 'list'
                     return false
                   end
                 end
               end

app/controllers/user_admin_controller.rb ¶ +20 -1

               require 'csv'
               class UserAdminController < ApplicationController
                 include MailHelperMethods
                 before_filter :admin_authorization
                 # GETs should be safe (see http://www.w3.org/2001/tag/doc/whenToUseGet.html)
                 verify :method => :post, :only => [
                                                     :create, :create_from_list,
                                                     :update,
                                                     :manage_contest,
                                                     :bulk_mail
                                                   ],
                        :redirect_to => { :action => :list }
                 def index
                   @user_count = User.count
                   if params[:page] == 'all'
                     @users = User.all
                     @paginated = false
                   else
                     @users = User.paginate :page => params[:page]
                     @paginated = true
                   end
+            +     @users = User.all
                   @hidden_columns = ['hashed_password', 'salt', 'created_at', 'updated_at']
                   @contests = Contest.enabled
                 end
                 def active
                   sessions = ActiveRecord::SessionStore::Session.where("updated_at >= ?", 60.minutes.ago)
                   @users = []
                   sessions.each do |session|
                     if session.data[:user_id]
                       @users << User.find(session.data[:user_id])
                     end
                   end
                 end
                 def show
                   @user = User.find(params[:id])
                 end
                 def new
                   @user = User.new
                 end
                 def create
                   @user = User.new(user_params)
                   @user.activated = true
                   if @user.save
                     flash[:notice] = 'User was successfully created.'
                     redirect_to :action => 'index'
                   else
                     render :action => 'new'
                   end
                 end
                 def clear_last_ip
                   @user = User.find(params[:id])
                   @user.last_ip = nil
                   @user.save
                   redirect_to action: 'index', page: params[:page]
                 end
                 def create_from_list
                   lines = params[:user_list]
                   note = []
                   lines.split("\n").each do |line|
                     items = line.chomp.split(',')
                     if items.length>=2
                       login = items[0]
                       full_name = items[1]
                       remark =''
                       user_alias = ''
                       added_random_password = false
                       if items.length >= 3 and items[2].chomp(" ").length > 0;
                         password = items[2].chomp(" ")
                       else
                         password = random_password
                         add_random_password=true;
                       end
                       if items.length>= 4 and items[3].chomp(" ").length > 0;
                         user_alias = items[3].chomp(" ")
                       else
                         user_alias = login
                       end
                       if items.length>=5
                         remark = items[4].strip;
                       end
                       user = User.find_by_login(login)
                       if (user)
                         user.full_name = full_name
                         user.password = password
                         user.remark = remark
                       else
                         user = User.new({:login => login,
                                           :full_name => full_name,
                                           :password => password,
                                           :password_confirmation => password,
                                           :alias => user_alias,
                                           :remark => remark})
                       end
                       user.activated = true
                       user.save
                       if added_random_password
                         note << "'#{login}' (+)"
                       else
                         note << login
                       end
                     end
                   end
                   flash[:success] = 'User(s) ' + note.join(', ') +
                     ' were successfully created.  ' +
                     redirect_to :action => 'show', :id => @user
                   else
                     render :action => 'edit'
                   end
                 end
                 def destroy
                   User.find(params[:id]).destroy
                   redirect_to :action => 'index'
                 end
                 def user_stat
                   if params[:commit] == 'download csv'
                     @problems = Problem.all
                   else
                     @problems = Problem.available_problems
                   end
                   @users = User.includes(:contests, :contest_stat).where(enabled: true)
                   @scorearray = Array.new
                   @users.each do |u|
                     ustat = Array.new
                     ustat[0] = u
                     @problems.each do |p|
                       sub = Submission.find_last_by_user_and_problem(u.id,p.id)
                       if (sub!=nil) and (sub.points!=nil) and p and p.full_score
                         ustat << [(sub.points.to_f*100/p.full_score).round, (sub.points>=p.full_score)]
                       else
                         ustat << [0,false]
                       end
                     end
                     @scorearray << ustat
                   end
                   if params[:commit] == 'download csv' then
                     csv = gen_csv_from_scorearray(@scorearray,@problems)
                     send_data csv, filename: 'last_score.csv'
                   else
                     render template: 'user_admin/user_stat'
                   end
                 end
                 def user_stat_max
                   if params[:commit] == 'download csv'
                     @problems = Problem.all
                   else
                     @problems = Problem.available_problems
                   end
                   @users = User.includes(:contests).includes(:contest_stat).all
                   @scorearray = Array.new
                   #set up range from param
                   since_id = params.fetch(:since_id, 0).to_i
                   until_id = params.fetch(:until_id, 0).to_i
                   @users.each do |u|
                     ustat = Array.new
                     ustat[0] = u
                     @problems.each do |p|
                       max_points = 0
                       Submission.find_in_range_by_user_and_problem(u.id,p.id,since_id,until_id).each do |sub|
                         max_points = sub.points if sub and sub.points and (sub.points > max_points)
                       end
                       ustat << [(max_points.to_f*100/p.full_score).round, (max_points>=p.full_score)]
                     end
                     @scorearray << ustat
                   end
                   if params[:commit] == 'download csv' then
                     csv = gen_csv_from_scorearray(@scorearray,@problems)
                     send_data csv, filename: 'max_score.csv'
                   else
                     render template: 'user_admin/user_stat'
                   end
                 end
                 def import
                   if params[:file]==''
                     flash[:notice] = 'Error importing no file'
                     redirect_to :action => 'index' and return
                   end
                   import_from_file(params[:file])
                 end
                 def random_all_passwords
                   users = User.all
                   @prefix = params[:prefix] || ''
                   @non_admin_users = User.find_non_admin_with_prefix(@prefix)
                   @changed = false
                   if request.request_method == 'POST'
                     @non_admin_users.each do |user|
                       password = random_password
                       user.password = password
                       user.password_confirmation = password
                       user.save
                     end
                     @changed = true
                   end
                 end
+            +
                 # contest management
                 def contests
                   @contest, @users = find_contest_and_user_from_contest_id(params[:id])
                   @contests = Contest.enabled
                 end
                 def assign_from_list
                   contest_id = params[:users_contest_id]
                   org_contest, users = find_contest_and_user_from_contest_id(contest_id)
                   contest = Contest.find(params[:new_contest][:id])
                   if !contest
                     flash[:notice] = 'Error: no contest'
                     redirect_to :action => 'contests', :id =>contest_id
                   end
                   note = []
                   users.each do |u|
                     u.contests = [contest]
                     note << u.login
                   end
                   flash[:notice] = 'User(s) ' + note.join(', ') +
                     " were successfully reassigned to #{contest.title}."
                   redirect_to :action => 'contests', :id =>contest.id
                 end
                 def add_to_contest
                   user = User.find(params[:id])
                   contest = Contest.find(params[:contest_id])
                   if user and contest
                     user.contests << contest
                   end
                   redirect_to :action => 'index'
                 end
                 def remove_from_contest
                   user = User.find(params[:id])
                   contest = Contest.find(params[:contest_id])
                   if user and contest
                     user.contests.delete(contest)
                   end
                   redirect_to :action => 'index'
                 end
                 def contest_management
                 end
                 def manage_contest
                   contest = Contest.find(params[:contest][:id])
                   if !contest
                     flash[:notice] = 'You did not choose the contest.'
                     redirect_to :action => 'contest_management' and return
                   end
                   operation = params[:operation]
                   if not ['add','remove','assign'].include? operation
                     flash[:notice] = 'You did not choose the operation to perform.'
                     redirect_to :action => 'contest_management' and return
                   end
                   lines = params[:login_list]
                   if !lines or lines.blank?
                     flash[:notice] = 'You entered an empty list.'
                     redirect_to :action => 'contest_management' and return
                   end
                   note = []
                   users = []
                   lines.split("\n").each do |line|
                     user = User.find_by_login(line.chomp)
                     if user
                       if operation=='add'
                         if ! user.contests.include? contest
                           user.contests << contest
                         end
                       elsif operation=='remove'
                         user.contests.delete(contest)
                       else
                         user.contests = [contest]
                       end
                       if params[:reset_timer]
                         user.contest_stat.forced_logout = true
                         user.contest_stat.reset_timer_and_save
                       end
                       if params[:notification_emails]
                         send_contest_update_notification_email(user, contest)
                       end
                       note << user.login
                       users << user
                     end
                   end
                   if params[:reset_timer]
                     logout_users(users)
                   end
                   flash[:notice] = 'User(s) ' + note.join(', ') +
                     ' were successfully modified.  '
                   redirect_to :action => 'contest_management'
                 end
                 # admin management
                 def admin
                   @admins = User.all.find_all {|user| user.admin? }
                 end
                 def grant_admin
                   login = params[:login]
                   user = User.find_by_login(login)
                   if user!=nil
                     admin_role = Role.find_by_name('admin')
                     user.roles << admin_role
                   else
                     flash[:notice] = 'Unknown user'
                   end
                   flash[:notice] = 'User added as admins'
                   redirect_to :action => 'admin'
                 end
                 def revoke_admin
                   user = User.find(params[:id])
                   if user==nil
                     flash[:notice] = 'Unknown user'
                     redirect_to :action => 'admin' and return
                   elsif user.login == 'root'
                     flash[:notice] = 'You cannot revoke admisnistrator permission from root.'
                     redirect_to :action => 'admin' and return
                   end
                   admin_role = Role.find_by_name('admin')
                   user.roles.delete(admin_role)
                   flash[:notice] = 'User permission revoked'
                   redirect_to :action => 'admin'
                 end
                 # mass mailing
                 def mass_mailing
                 end
                 def bulk_mail
                   lines = params[:login_list]
                   if !lines or lines.blank?
                     flash[:notice] = 'You entered an empty list.'
                     redirect_to :action => 'mass_mailing' and return
                   end
                   mail_subject = params[:subject]
                   if !mail_subject or mail_subject.blank?
                     flash[:notice] = 'You entered an empty mail subject.'
                     redirect_to :action => 'mass_mailing' and return
                   end
                   mail_body = params[:email_body]
                   if !mail_body or mail_body.blank?
                     flash[:notice] = 'You entered an empty mail body.'
                     redirect_to :action => 'mass_mailing' and return
                   end
                   note = []
                   users = []
                   lines.split("\n").each do |line|
                     user = User.find_by_login(line.chomp)
                     if user
                       send_mail(user.email, mail_subject, mail_body)
                       note << user.login
                     end
                   end
                   flash[:notice] = 'User(s) ' + note.join(', ') +
                     ' were successfully modified.  '
                   redirect_to :action => 'mass_mailing'
                 end
                 #bulk manage
                 def bulk_manage
                   begin
-            -       @users = User.where('login REGEXP ?',params[:regex]) if params[:regex]
+            +       @users = User.where('(login REGEXP ?) OR (remark REGEXP ?)',params[:regex],params[:regex]) if params[:regex]
                     @users.count if @users #i don't know why I have to call count, but if I won't exception is not raised
                   rescue Exception
                     flash[:error] = 'Regular Expression is malformed'
                     @users = nil
                   end
                   if params[:commit]
                     @action = {}
                     @action[:set_enable] = params[:enabled]
                     @action[:enabled] = params[:enable] == "1"
                     @action[:gen_password] = params[:gen_password]
+            +       @action[:add_group] = params[:add_group]
+            +       @action[:group_name] = params[:group_name]
                   end
                   if params[:commit] == "Perform"
                     if @action[:set_enable]
                       @users.update_all(enabled: @action[:enabled])
                     end
                     if @action[:gen_password]
                       @users.each do |u|
                         password = random_password
                         u.password = password
                         u.password_confirmation = password
                         u.save
                       end
                     end
+            +       if @action[:add_group] and @action[:group_name]
+            +         @group = Group.find(@action[:group_name])
+            +         ok = []
+            +         failed = []
+            +         @users.each do |user|
+            +           begin
+            +             @group.users << user
+            +             ok << user.login
+            +           rescue => e
+            +             failed << user.login
+            +           end
+            +         end
+            +         flash[:success] = "The following users are added to the 'group #{@group.name}': " + ok.join(', ') if ok.count > 0
+            +         flash[:alert] = "The following users are already in the 'group #{@group.name}': " + failed.join(', ') if failed.count > 0
+            +       end
                   end
                 end
                 protected
                 def random_password(length=5)
                   chars = 'abcdefghijkmnopqrstuvwxyz23456789'
                   newpass = ""
                   length.times { newpass << chars[rand(chars.size-1)] }
                   return newpass
                 end
                 def import_from_file(f)
                   data_hash = YAML.load(f)
                   @import_log = ""
                   country_data = data_hash[:countries]
                   site_data = data_hash[:sites]
                   user_data = data_hash[:users]
                   # import country
                   countries = {}
                   country_data.each_pair do |id,country|
                     c = Country.find_by_name(country[:name])
                     if c!=nil
                       countries[id] = c
                       @import_log << "Found #{country[:name]}\n"
                     else
                       countries[id] = Country.new(:name => country[:name])
                       countries[id].save
                       @import_log << "Created #{country[:name]}\n"
                     end
                   end
                   # import sites
                   sites = {}
                   site_data.each_pair do |id,site|
                     s = Site.find_by_name(site[:name])
                     if s!=nil
                       @import_log << "Found #{site[:name]}\n"
                     else
                       s = Site.new(:name => site[:name])
                       @import_log << "Created #{site[:name]}\n"
                     end
                     s.password = site[:password]
                     s.country = countries[site[:country_id]]
                     s.save
                     sites[id] = s
                   end
                   # import users
                   user_data.each_pair do |id,user|
                     u = User.find_by_login(user[:login])
                     if u!=nil
                       @import_log << "Found #{user[:login]}\n"
                     else
                       u = User.new(:login => user[:login])
                       @import_log << "Created #{user[:login]}\n"
                     end
                     u.full_name = user[:name]
                     u.password = user[:password]
                     u.country = countries[user[:country_id]]
                     u.site = sites[user[:site_id]]
                     u.activated = true
                     u.email = "empty-#{u.login}@none.com"
                     if not u.save
                       @import_log << "Errors\n"
                       u.errors.each { |attr,msg|  @import_log << "#{attr} - #{msg}\n" }
                     end
                   end
                 end
                 def logout_users(users)
                   users.each do |user|
                     contest_stat = user.contest_stat(true)
                     if contest_stat and !contest_stat.forced_logout
                       contest_stat.forced_logout = true
                       contest_stat.save
                     end
                   end
                 end
                 def send_contest_update_notification_email(user, contest)
                   contest_title_name = GraderConfiguration['contest.name']
                   contest_name = contest.name
                   mail_subject = t('contest.notification.email_subject', {
                                      :contest_title_name => contest_title_name,
                                      :contest_name => contest_name })
                   mail_body = t('contest.notification.email_body', {
                                   :full_name => user.full_name,
                                   :contest_title_name => contest_title_name,
                                   :contest_name => contest.name,
                                 })
                   logger.info mail_body

app/helpers/application_helper.rb ¶ +8 -5

               # Methods added to this helper will be available to all templates in the application.
               module ApplicationHelper
                 #new bootstrap header
                 def navbar_user_header
                   left_menu = ''
                   right_menu = ''
                   user = User.find(session[:user_id])
                   if (user!=nil) and (GraderConfiguration.show_tasks_to?(user))
                     left_menu << add_menu("#{I18n.t 'menu.tasks'}", 'tasks', 'list')
                     left_menu << add_menu("#{I18n.t 'menu.submissions'}", 'main', 'submission')
                     left_menu << add_menu("#{I18n.t 'menu.test'}", 'test', 'index')
                   end
                   if GraderConfiguration['right.user_hall_of_fame']
                     left_menu << add_menu("#{I18n.t 'menu.hall_of_fame'}", 'report', 'problem_hof')
                   end
                   right_menu << add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-question-sign')}".html_safe, 'main', 'help')
                   right_menu << add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-comment')}".html_safe, 'messages', 'list', {title: I18n.t('menu.messages'), data: {toggle: 'tooltip'}})
                   if GraderConfiguration['system.user_setting_enabled']
                     right_menu << add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-cog')}".html_safe, 'users', 'index', {title: I18n.t('menu.settings'), data: {toggle: 'tooltip'}})
                   end
                   right_menu << add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-log-out')} #{user.full_name}".html_safe, 'main', 'login', {title: I18n.t('menu.log_out'), data: {toggle: 'tooltip'}})
                   result = content_tag(:ul,left_menu.html_safe,class: 'nav navbar-nav') + content_tag(:ul,right_menu.html_safe,class: 'nav navbar-nav navbar-right')
                 end
                 def add_menu(title, controller, action, html_option = {})
                   link_option = {controller: controller, action: action}
                   html_option[:class] = (html_option[:class] || '') + " active" if current_page?(link_option)
                   content_tag(:li, link_to(title,link_option),html_option)
                 end
                 def user_header
                   menu_items = ''
                   user = User.find(session[:user_id])
                   if (user!=nil) and (session[:admin])
                     # admin menu
                     menu_items << "<b>Administrative task:</b> "
                     append_to menu_items, '[Announcements]', 'announcements', 'index'
                     append_to menu_items, '[Msg console]', 'messages', 'console'
                     append_to menu_items, '[Problems]', 'problems', 'index'
                     append_to menu_items, '[Users]', 'user_admin', 'index'
                     append_to menu_items, '[Results]', 'user_admin', 'user_stat'
                     append_to menu_items, '[Report]', 'report', 'multiple_login'
                     append_to menu_items, '[Graders]', 'graders', 'list'
                     append_to menu_items, '[Contests]', 'contest_management', 'index'
                     append_to menu_items, '[Sites]', 'sites', 'index'
                     append_to menu_items, '[System config]', 'configurations', 'index'
                     menu_items << "<br/>"
                   end
                   # main page
                   append_to menu_items, "[#{I18n.t 'menu.main'}]", 'main', 'list'
                   append_to menu_items, "[#{I18n.t 'menu.messages'}]", 'messages', 'list'
                   if (user!=nil) and (GraderConfiguration.show_tasks_to?(user))
                     append_to menu_items, "[#{I18n.t 'menu.tasks'}]", 'tasks', 'list'
                     append_to menu_items, "[#{I18n.t 'menu.submissions'}]", 'main', 'submission'
                     append_to menu_items, "[#{I18n.t 'menu.test'}]", 'test', 'index'
                   end
                   if GraderConfiguration['right.user_hall_of_fame']
                     append_to menu_items, "[#{I18n.t 'menu.hall_of_fame'}]", 'report', 'problem_hof'
                   end
                   append_to menu_items, "[#{I18n.t 'menu.help'}]", 'main', 'help'
                   if GraderConfiguration['system.user_setting_enabled']
                     append_to menu_items, "[#{I18n.t 'menu.settings'}]", 'users', 'index'
                   end
                   append_to menu_items, "[#{I18n.t 'menu.log_out'}]", 'main', 'login'
                   menu_items.html_safe
                 end
                 def append_to(option,label, controller, action)
                   option << ' ' if option!=''
                   option << link_to_unless_current(label,
                                                    :controller => controller,
                                                    :action => action)
                 end
                 def format_short_time(time)
-            -     now = Time.now.gmtime
+            +     now = Time.zone.now
                   st = ''
-            -     if (time.yday != now.yday) or
-            - 	(time.year != now.year)
-            -       st = time.strftime("%x ")
+            +     if (time.yday != now.yday) or (time.year != now.year)
+            +       st = time.strftime("%d/%m/%y ")
                   end
                   st + time.strftime("%X")
                 end
                 def format_short_duration(duration)
                   return '' if duration==nil
                   d = duration.to_f
                   return Time.at(d).gmtime.strftime("%X")
                 end
+            +   def format_full_time_ago(time)
+            +     st = time_ago_in_words(time) + ' ago (' + format_short_time(time) + ')'
+            +   end
+            +
                 def read_textfile(fname,max_size=2048)
                   begin
                     File.open(fname).read(max_size)
                   rescue
                     nil
                   end
                 end
                 def toggle_button(on,toggle_url,id, option={})
                   btn_size = option[:size] || 'btn-xs'
                   link_to (on ? "Yes" : "No"), toggle_url,
                     {class: "btn btn-block #{btn_size} btn-#{on ? 'success' : 'default'} ajax-toggle",
                       id: id,
                       data: {remote: true, method: 'get'}}
                 end
                 def get_ace_mode(language)
                   # return ace mode string from Language
                   case language.pretty_name
                     when 'Pascal'
                       'ace/mode/pascal'
                     when 'C++','C'
                       'ace/mode/c_cpp'
                     when 'Ruby'
                       'ace/mode/ruby'
                     when 'Python'
                       'ace/mode/python'
                     when 'Java'
                       'ace/mode/java'
                     else
                       'ace/mode/c_cpp'
                   end
                 end
                 def user_title_bar(user)
                   header = ''
                   time_left = ''
                   #
                   # if the contest is over
                   if GraderConfiguration.time_limit_mode?
                     if user.contest_finished?
                       header = <<CONTEST_OVER
               <tr><td colspan="2" align="center">
               <span class="contest-over-msg">THE CONTEST IS OVER</span>
               </td></tr>
               CONTEST_OVER
                     end
                     if !user.contest_started?
                       time_left = "&nbsp;&nbsp;" + (t 'title_bar.contest_not_started')
                     else
                       time_left = "&nbsp;&nbsp;" + (t 'title_bar.remaining_time') +
                         " #{format_short_duration(user.contest_time_left)}"
                     end
                   end
                   #
                   # if the contest is in the anaysis mode
                   if GraderConfiguration.analysis_mode?
                     header = <<ANALYSISMODE
               <tr><td colspan="2" align="center">
               <span class="contest-over-msg">ANALYSIS MODE</span>
               </td></tr>
               ANALYSISMODE
                   end
                   contest_name = GraderConfiguration['contest.name']
                   #
                   # build real title bar
                   result = <<TITLEBAR
               <div class="title">
               <table>
               #{header}
               <tr>
               <td class="left-col">
               #{user.full_name}<br/>
               #{t 'title_bar.current_time'} #{format_short_time(Time.zone.now)}
               #{time_left}
               <br/>
               </td>
               <td class="right-col">#{contest_name}</td>
               </tr>
               </table>
               </div>
               TITLEBAR
                   result.html_safe
                 end
                 def markdown(text)
                   markdown = RDiscount.new(text)
                   markdown.to_html.html_safe
                 end
                 BOOTSTRAP_FLASH_MSG = {
                   success: 'alert-success',
                   error: 'alert-danger',
-            -     alert: 'alert-block',
+            +     alert: 'alert-danger',
                   notice: 'alert-info'
                 }
                 def bootstrap_class_for(flash_type)
                   BOOTSTRAP_FLASH_MSG.fetch(flash_type.to_sym, flash_type.to_s)
                 end
                 def flash_messages
                   flash.each do |msg_type, message|
                     concat(content_tag(:div, message, class: "alert #{bootstrap_class_for(msg_type)} fade in") do
                             concat content_tag(:button, 'x', class: "close", data: { dismiss: 'alert' })
                             concat message
                           end)
                   end
                   nil
                 end
               end

app/models/grader_configuration.rb ¶ +5

               require 'yaml'
               #
               # This class also contains various login of the system.
               #
               class GraderConfiguration < ActiveRecord::Base
                 SYSTEM_MODE_CONF_KEY = 'system.mode'
                 TEST_REQUEST_EARLY_TIMEOUT_KEY = 'contest.test_request.early_timeout'
                 MULTICONTESTS_KEY = 'system.multicontests'
                 CONTEST_TIME_LIMIT_KEY = 'contest.time_limit'
                 MULTIPLE_IP_LOGIN_KEY = 'right.multiple_ip_login'
                 VIEW_TESTCASE = 'right.view_testcase'
                 SINGLE_USER_KEY = 'system.single_user_mode'
+            +   SYSTEM_USE_PROBLEM_GROUP = 'system.use_problem_group'
                 cattr_accessor :config_cache
                 cattr_accessor :task_grading_info_cache
                 cattr_accessor :contest_time_str
                 cattr_accessor :contest_time
                 GraderConfiguration.config_cache = nil
                 GraderConfiguration.task_grading_info_cache = nil
                 def self.config_cached?
                   (defined? CONFIGURATION_CACHE_ENABLED) and (CONFIGURATION_CACHE_ENABLED)
                 end
                 def self.get(key)
                   if GraderConfiguration.config_cached?
                     if GraderConfiguration.config_cache == nil
                       self.read_config
                     end
                     return GraderConfiguration.config_cache[key]
                   else
                     return GraderConfiguration.read_one_key(key)
                   end
                 end
                 def self.[](key)
                   self.get(key)
                 end
                 def self.reload
                   self.read_config
                 end
                 def self.clear
                   GraderConfiguration.config_cache = nil
                 end
                 #
                 # View decision
                 #
                 def self.show_submitbox_to?(user)
                   mode = get(SYSTEM_MODE_CONF_KEY)
                   return false if mode=='analysis'
                   if (mode=='contest')
                     return false if (user.site!=nil) and
                       ((user.site.started!=true) or (user.site.finished?))
                   end
                   return true
                 end
                 def self.show_tasks_to?(user)
                   if time_limit_mode?
                     return false if not user.contest_started?
                   end
                   return true
                 end
                 def self.show_grading_result
                   return (get(SYSTEM_MODE_CONF_KEY)=='analysis')
                 end
                 def  self.show_testcase
                   return get(VIEW_TESTCASE)
                 end
                 def self.allow_test_request(user)
                   mode = get(SYSTEM_MODE_CONF_KEY)
                   early_timeout = get(TEST_REQUEST_EARLY_TIMEOUT_KEY)
                   if (mode=='contest')
                     return false if ((user.site!=nil) and
                       ((user.site.started!=true) or
                        (early_timeout and (user.site.time_left < 30.minutes))))
                   end
                   return false if mode=='analysis'
                   return true
                 end
                 def self.task_grading_info
                   if GraderConfiguration.task_grading_info_cache==nil
                     read_grading_info
                   end
                   return GraderConfiguration.task_grading_info_cache
                 end
                 def self.standard_mode?
                   return get(SYSTEM_MODE_CONF_KEY) == 'standard'
                 end
                 def self.contest_mode?
                   return get(SYSTEM_MODE_CONF_KEY) == 'contest'
                 end
                 def self.indv_contest_mode?
                   return get(SYSTEM_MODE_CONF_KEY) == 'indv-contest'
                 end
                 def self.multicontests?
                   return get(MULTICONTESTS_KEY) == true
                 end
                 def self.time_limit_mode?
                   mode = get(SYSTEM_MODE_CONF_KEY)
                   return ((mode == 'contest') or (mode == 'indv-contest'))
                 end
                 def self.analysis_mode?
                   return get(SYSTEM_MODE_CONF_KEY) == 'analysis'
                 end
+            +   def self.use_problem_group?
+            +     return get(SYSTEM_USE_PROBLEM_GROUP)
+            +   end
+            +
                 def self.contest_time_limit
                   contest_time_str = GraderConfiguration[CONTEST_TIME_LIMIT_KEY]
                   if not defined? GraderConfiguration.contest_time_str
                     GraderConfiguration.contest_time_str = nil
                   end
                   if GraderConfiguration.contest_time_str != contest_time_str
                     GraderConfiguration.contest_time_str = contest_time_str
                     if tmatch = /(\d+):(\d+)/.match(contest_time_str)
                       h = tmatch[1].to_i
                       m = tmatch[2].to_i
                       GraderConfiguration.contest_time = h.hour + m.minute
                     else
                       GraderConfiguration.contest_time = nil
                     end
                   end
                   return GraderConfiguration.contest_time
                 end
                 protected
                 def self.convert_type(val,type)
                   case type
                   when 'string'
                     return val
                   when 'integer'
                     return val.to_i
                   when 'boolean'
                     return (val=='true')
                   end
                 end
                 def self.read_config
                   GraderConfiguration.config_cache = {}
                   GraderConfiguration.all.each do |conf|
                     key = conf.key
                     val = conf.value
                     GraderConfiguration.config_cache[key] = GraderConfiguration.convert_type(val,conf.value_type)
                   end
                 end
                 def self.read_one_key(key)
                   conf = GraderConfiguration.find_by_key(key)
                   if conf
                     return GraderConfiguration.convert_type(conf.value,conf.value_type)
                   else
                     return nil
                   end
                 end
                 def self.read_grading_info
                   f = File.open(TASK_GRADING_INFO_FILENAME)
                   GraderConfiguration.task_grading_info_cache = YAML.load(f)
                   f.close
                 end
               end

app/models/problem.rb ¶ +8

               class Problem < ActiveRecord::Base
                 belongs_to :description
                 has_and_belongs_to_many :contests, :uniq => true
+            +
+            +   #has_and_belongs_to_many :groups
+            +   has_many :groups_problems, class_name: GroupProblem
+            +   has_many :groups, :through => :groups_problems
+            +
+            +   has_many :problems_tags, class_name: ProblemTag
+            +   has_many :tags, through: :problems_tags
+            +
                 has_many :test_pairs, :dependent => :delete_all
                 has_many :testcases, :dependent => :destroy
                 validates_presence_of :name
                 validates_format_of :name, :with => /\A\w+\z/
                 validates_presence_of :full_name
                 scope :available, -> { where(available: true) }
                 DEFAULT_TIME_LIMIT = 1
                 DEFAULT_MEMORY_LIMIT = 32
                 def self.available_problems
                   available.order(date_added: :desc).order(:name)
                   #Problem.available.all(:order => "date_added DESC, name ASC")
                 end
                 def self.create_from_import_form_params(params, old_problem=nil)
                   org_problem = old_problem || Problem.new
                   import_params, problem = Problem.extract_params_and_check(params,
                                                                             org_problem)
                   if !problem.errors.empty?
                     return problem, 'Error importing'
                   end
                   problem.full_score = 100
                   problem.date_added = Time.new
                   problem.test_allowed = true
                   problem.output_only = false
                   problem.available = false
                   if not problem.save
                     return problem, 'Error importing'
                   end
                   import_to_db = params.has_key? :import_to_db
                   importer = TestdataImporter.new(problem)
                   if not importer.import_from_file(import_params[:file],
                                                    import_params[:time_limit],
                                                    import_params[:memory_limit],
                                                    import_params[:checker_name],
                                                    import_to_db)
                     problem.errors.add(:base,'Import error.')
                   end
                   return problem, importer.log_msg
                 end
                 def self.download_file_basedir
                   return "#{Rails.root}/data/tasks"
                 end
                 def get_submission_stat
                   result = Hash.new
                   #total number of submission
                   result[:total_sub] = Submission.where(problem_id: self.id).count
                   result[:attempted_user] = Submission.where(problem_id: self.id).group(:user_id)
                   result[:pass] = Submission.where(problem_id: self.id).where("points >= ?",self.full_score).count
                   return result
                 end
                 def long_name
                   "[#{name}] #{full_name}"
                 end
                 protected
                 def self.to_i_or_default(st, default)
                   if st!=''
                     result = st.to_i
                   end
                   result ||= default
                 end
                 def self.to_f_or_default(st, default)
                   if st!=''
                     result = st.to_f
                   end
                   result ||= default
                 end
                 def self.extract_params_and_check(params, problem)
                   time_limit = Problem.to_f_or_default(params[:time_limit],
                                                        DEFAULT_TIME_LIMIT)
                   memory_limit = Problem.to_i_or_default(params[:memory_limit],
                                                          DEFAULT_MEMORY_LIMIT)
                   if time_limit<=0 or time_limit >60
                     problem.errors.add(:base,'Time limit out of range.')
                   end
                   if memory_limit==0 and params[:memory_limit]!='0'
                     problem.errors.add(:base,'Memory limit format errors.')

app/models/submission.rb ¶ +8 -4

               class Submission < ActiveRecord::Base
                 belongs_to :language
                 belongs_to :problem
                 belongs_to :user
                 before_validation :assign_problem
                 before_validation :assign_language
                 validates_presence_of :source
                 validates_length_of :source, :maximum => 100_000, :allow_blank => true, :message => 'too long'
                 validates_length_of :source, :minimum => 1, :allow_blank => true, :message => 'too short'
                 validate :must_have_valid_problem
                 validate :must_specify_language
                 has_one :task
                 before_save :assign_latest_number_if_new_recond
                 def self.find_last_by_user_and_problem(user_id, problem_id)
                   where("user_id = ? AND problem_id = ?",user_id,problem_id).last
                 end
                 def self.find_all_last_by_problem(problem_id)
                   # need to put in SQL command, maybe there's a better way
                   Submission.includes(:user).find_by_sql("SELECT * FROM submissions " +
               			   "WHERE id = " +
               			   "(SELECT MAX(id) FROM submissions AS subs " +
               			   "WHERE subs.user_id = submissions.user_id AND " +
                                          "problem_id = " + problem_id.to_s + " " +
               			   "GROUP BY user_id) " +
                                          "ORDER BY user_id")
                 end
                 def self.find_in_range_by_user_and_problem(user_id, problem_id,since_id,until_id)
                   records = Submission.where(problem_id: problem_id,user_id: user_id)
-            -     records = records.where('id >= ?',since_id) if since_id > 0
-            -     records = records.where('id <= ?',until_id) if until_id > 0
+            +     records = records.where('id >= ?',since_id) if since_id and since_id > 0
+            +     records = records.where('id <= ?',until_id) if until_id and until_id > 0
                   records.all
                 end
                 def self.find_last_for_all_available_problems(user_id)
                   submissions = Array.new
                   problems = Problem.available_problems
                   problems.each do |problem|
                     sub = Submission.find_last_by_user_and_problem(user_id, problem.id)
                     submissions << sub if sub!=nil
                   end
                   submissions
                 end
                 def self.find_by_user_problem_number(user_id, problem_id, number)
                   where("user_id = ? AND problem_id = ? AND number = ?",user_id,problem_id,number).first
                 end
                 def self.find_all_by_user_problem(user_id, problem_id)
                   where("user_id = ? AND problem_id = ?",user_id,problem_id)
                 end
                 def download_filename
                   if self.problem.output_only
                     return self.source_filename
                   else
                     timestamp = self.submitted_at.localtime.strftime("%H%M%S")
                     return "#{self.problem.name}-#{timestamp}.#{self.language.ext}"
                   end
                 end
                 protected
                 def self.find_option_in_source(option, source)
                   if source==nil
                     return nil
                   end
                   i = 0
                   source.each_line do |s|
                     if s =~ option
               	words = s.split
               	return words[1]
                     end
                     i = i + 1
                     if i==10
               	return nil
                     end
                   end
                   return nil
                 end
                 def self.find_language_in_source(source, source_filename="")
                   langopt = find_option_in_source(/^LANG:/,source)
                   if langopt
                     return (Language.find_by_name(langopt) ||
                             Language.find_by_pretty_name(langopt))
                   else
                     if source_filename
                       return Language.find_by_extension(source_filename.split('.').last)
                     else
                       return nil
                     end
                   end
                 end
                 def self.find_problem_in_source(source, source_filename="")
                   prob_opt = find_option_in_source(/^TASK:/,source)
                   if problem = Problem.find_by_name(prob_opt)
                     return problem
                   else
                     if source_filename
                       return Problem.find_by_name(source_filename.split('.').first)
                     else
                       return nil
                     end
                   end
                 end
                 def assign_problem
                   if self.problem_id!=-1
                     begin
                       self.problem = Problem.find(self.problem_id)
                     rescue ActiveRecord::RecordNotFound
                       self.problem = nil
                     end
                   else
                     self.problem = Submission.find_problem_in_source(self.source,
                                                                      self.source_filename)
                   end
                 end
                 def assign_language
                   self.language = Submission.find_language_in_source(self.source,
                                                                      self.source_filename)
                 end
                 # validation codes
                 def must_specify_language
                   return if self.source==nil
                   # for output_only tasks
                   return if self.problem!=nil and self.problem.output_only
                   if self.language==nil
                     errors.add('source',"Cannot detect language. Did you submit a correct source file?") unless self.language!=nil
                   end
                 end
                 def must_have_valid_problem
                   return if self.source==nil
                   if self.problem==nil
                     errors.add('problem',"must be specified.")
-            -     elsif (!self.problem.available) and (self.new_record?)
-            -       errors.add('problem',"must be valid.")
+            +     else
+            +       #admin always have right
+            +       return if self.user.admin?
+            +
+            +       #check if user has the right to submit the problem
+            +       errors.add('problem',"must be valid.") if (!self.user.available_problems.include?(self.problem)) and (self.new_record?)
                   end
                 end
                 # callbacks
                 def assign_latest_number_if_new_recond
                   return if !self.new_record?
                   latest = Submission.find_last_by_user_and_problem(self.user_id, self.problem_id)
                   self.number = (latest==nil) ? 1 : latest.number + 1;
                 end
               end

app/models/user.rb ¶ +34 -5

               require 'digest/sha1'
               require 'net/pop'
               require 'net/https'
               require 'net/http'
               require 'json'
               class User < ActiveRecord::Base
                 has_and_belongs_to_many :roles
+            +   #has_and_belongs_to_many :groups
+            +   has_many :groups_users, class_name: GroupUser
+            +   has_many :groups, :through => :groups_users
+            +
                 has_many :test_requests, -> {order(submitted_at: DESC)}
                 has_many :messages, -> { order(created_at: DESC) },
                          :class_name => "Message",
                          :foreign_key => "sender_id"
                 has_many :replied_messages, -> { order(created_at: DESC) },
                          :class_name => "Message",
                          :foreign_key => "receiver_id"
                 has_one :contest_stat, :class_name => "UserContestStat", :dependent => :destroy
                 belongs_to :site
                 belongs_to :country
                 has_and_belongs_to_many :contests, -> { order(:name); uniq}
                 scope :activated_users, -> {where activated: true}
                 validates_presence_of :login
                 validates_uniqueness_of :login
                 validates_format_of :login, :with => /\A[\_A-Za-z0-9]+\z/
                 validates_length_of :login, :within => 3..30
                 validates_presence_of :full_name
                 validates_length_of :full_name, :minimum => 1
                 validates_presence_of :password, :if => :password_required?
                 validates_length_of :password, :within => 4..20, :if => :password_required?
                 validates_confirmation_of :password, :if => :password_required?
                 validates_format_of :email,
                                     :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i,
                                     :if => :email_validation?
                 validate :uniqueness_of_email_from_activated_users,
                          :if => :email_validation?
                 validate :enough_time_interval_between_same_email_registrations,
                          :if => :email_validation?
                 # these are for ytopc
                 # disable for now
                 #validates_presence_of :province
                 attr_accessor :password
                 before_save :encrypt_new_password
                 before_save :assign_default_site
                 before_save :assign_default_contest
                 # this is for will_paginate
                 cattr_reader :per_page
                 @@per_page = 50
                 def self.authenticate(login, password)
                   user = find_by_login(login)
                   if user
                     return user if user.authenticated?(password)
                   end
                 end
                 def authenticated?(password)
                   if self.activated
                     hashed_password == User.encrypt(password,self.salt)
                   else
                     false
                   end
                 end
                 def admin?
                   self.roles.detect {|r| r.name == 'admin' }
                 end
                 def email_for_editing
                   if self.email==nil
                     "(unknown)"
                   elsif self.email==''
                     "(blank)"
                   else
                     self.email
                   end
                 end
                 def email_for_editing=(e)
                   self.email=e
                 end
                 def alias_for_editing
                   if self.alias==nil
                     "(unknown)"
                   elsif self.alias==''
                     "(blank)"
                   else
                     self.alias
                   end
                 end
                     time_limit = GraderConfiguration.contest_time_limit
                     if time_limit == nil
                       return nil
                     end
                     if contest_stat==nil or contest_stat.started_at==nil
                       return (Time.now.gmtime + time_limit) - Time.now.gmtime
                     else
                       finish_time = contest_stat.started_at + time_limit
                       current_time = Time.now.gmtime
                       if current_time > finish_time
                         return 0
                       else
                         return finish_time - current_time
                       end
                     end
                   else
                     return nil
                   end
                 end
                 def contest_finished?
                   if GraderConfiguration.contest_mode?
                     return false if site==nil
                     return site.finished?
                   elsif GraderConfiguration.indv_contest_mode?
                     return false if self.contest_stat(true)==nil
                     return contest_time_left == 0
                   else
                     return false
                   end
                 end
                 def contest_started?
                   if GraderConfiguration.indv_contest_mode?
                     stat = self.contest_stat
                     return ((stat != nil) and (stat.started_at != nil))
                   elsif GraderConfiguration.contest_mode?
                     return true if site==nil
                     return site.started
                   else
                     return true
                   end
                 end
                 def update_start_time
                   stat = self.contest_stat
                   if stat.nil? or stat.started_at.nil?
                     stat ||= UserContestStat.new(:user => self)
                     stat.started_at = Time.now.gmtime
                     stat.save
                   end
                 end
                 def problem_in_user_contests?(problem)
                   problem_contests = problem.contests.all
                   if problem_contests.length == 0   # this is public contest
                     return true
                   end
                   contests.each do |contest|
                     if problem_contests.find {|c| c.id == contest.id }
                       return true
                     end
                   end
                   return false
                 end
                 def available_problems_group_by_contests
                   contest_problems = []
                   pin = {}
                   contests.enabled.each do |contest|
                     available_problems = contest.problems.available
                     contest_problems << {
                       :contest => contest,
                       :problems => available_problems
                     }
                     available_problems.each {|p| pin[p.id] = true}
                   end
                   other_avaiable_problems = Problem.available.find_all {|p| pin[p.id]==nil and p.contests.length==0}
                   contest_problems << {
                     :contest => nil,
                     :problems => other_avaiable_problems
                   }
                   return contest_problems
                 end
                 def solve_all_available_problems?
                   available_problems.each do |p|
                     u = self
                     sub = Submission.find_last_by_user_and_problem(u.id,p.id)
                     return false if !p or !sub or sub.points < p.full_score
                   end
                   return true
                 end
+            +   #get a list of available problem
                 def available_problems
                   if not GraderConfiguration.multicontests?
+            +       if GraderConfiguration.use_problem_group?
+            +         return available_problems_in_group
+            +       else
                     return Problem.available_problems
+            +       end
                   else
                     contest_problems = []
                     pin = {}
                     contests.enabled.each do |contest|
                       contest.problems.available.each do |problem|
                         if not pin.has_key? problem.id
                           contest_problems << problem
                         end
                         pin[problem.id] = true
                       end
                     end
                     other_avaiable_problems = Problem.available.find_all {|p| pin[p.id]==nil and p.contests.length==0}
                     return contest_problems + other_avaiable_problems
                   end
                 end
+            +   def available_problems_in_group
+            +     problem = []
+            +     self.groups.each do |group|
+            +       group.problems.where(available: true).each { |p| problem << p }
+            +     end
+            +     problem.uniq!
+            +     if problem
+            +       problem.sort! do |a,b|
+            +         case
+            +         when a.date_added < b.date_added
+            +           1
+            +         when a.date_added > b.date_added
+            +           -1
+            +         else
+            +           a.name <=> b.name
+            +         end
+            +       end
+            +       return problem
+            +     else
+            +       return []
+            +     end
+            +   end
+            +
                 def can_view_problem?(problem)
-            -     if not GraderConfiguration.multicontests?
-            -       return problem.available
-            -     else
-            -       return problem_in_user_contests? problem
-            -     end
+            +     return true if admin?
+            +     return available_problems.include? problem
                 end
                 def self.clear_last_login
                   User.update_all(:last_ip => nil)
                 end
                 protected
                   def encrypt_new_password
                     return if password.blank?
                     self.salt = (10+rand(90)).to_s
                     self.hashed_password = User.encrypt(self.password,self.salt)
                   end
                   def assign_default_site
                     # have to catch error when migrating (because self.site is not available).
                     begin
                       if self.site==nil
                         self.site = Site.find_by_name('default')
                         if self.site==nil
                           self.site = Site.find(1)  # when 'default has be renamed'
                         end
                       end
                     rescue
                     end
                   end
                   def assign_default_contest
                     # have to catch error when migrating (because self.site is not available).
                     begin
                       if self.contests.length == 0
                         default_contest = Contest.find_by_name(GraderConfiguration['contest.default_contest_name'])
                         if default_contest
                           self.contests = [default_contest]
                         end
                       end
                     rescue
                     end
                   end
                   def password_required?
                     self.hashed_password.blank? || !self.password.blank?
                   end
                   def self.encrypt(string,salt)
                     Digest::SHA1.hexdigest(salt + string)
                   end
                   def uniqueness_of_email_from_activated_users
                     user = User.activated_users.find_by_email(self.email)
                     if user and (user.login != self.login)
                       self.errors.add(:base,"Email has already been taken")
                     end
                   end
                   def enough_time_interval_between_same_email_registrations
                     return if !self.new_record?
                     return if self.activated
                     open_user = User.find_by_email(self.email,
                                                    :order => 'created_at DESC')
                     if open_user and open_user.created_at and
                         (open_user.created_at > Time.now.gmtime - 5.minutes)
                       self.errors.add(:base,"There are already unactivated registrations with this e-mail address (please wait for 5 minutes)")
                     end
                   end
                   def email_validation?
                     begin
                       return VALIDATE_USER_EMAILS
                     rescue
                       return false
                     end
                   end
               end

app/views/announcements/show.html.erb ¶ +1 -1

               <p>
                 <b>Author:</b>
                 <%=h @announcement.author %>
               </p>
               <p>
                 <b>Title:</b>
                 <%=h @announcement.title %>
               </p>
               <p>
                 <b>Notes:</b>
                 <%=h @announcement.notes %>
               </p>
               <p>
                 <b>Body:</b>
-            -   <%=h @announcement.body %>
+            +   <%=h markdown(@announcement.body) %>
               </p>
               <p>
                 <b>Published:</b>
                 <%=h @announcement.published %>
               </p>
               <p>
                 <b>Show on front page:</b>
                 <%=h @announcement.frontpage %>
               </p>
               <p>
                 <b>Show only in contest:</b>
                 <%=h @announcement.contest_only %>
               </p>
               <%= link_to 'Edit', edit_announcement_path(@announcement) %> |
               <%= link_to 'Back', announcements_path %>

app/views/application/_submission_short.html.haml ¶ +8 -6

+            -
-              - if submission.nil?
                 = "-"
               - else
+            +   %strong= "Submission ID:"
+            +   = submission.id
+            +   %br
                 - unless submission.graded_at
-            -     = t 'main.submitted_at'
-            -     = format_short_time(submission.submitted_at.localtime)
+            +     %strong= t 'main.submitted_at:'
+            +     = format_full_time_ago(submission.submitted_at.localtime)
                 - else
-            -     %strong= t 'main.graded_at'
-            -     = "#{format_short_time(submission.graded_at.localtime)} "
+            +     %strong= t 'main.graded_at:'
+            +     = format_full_time_ago(submission.graded_at.localtime)
                   %br
                   - if GraderConfiguration['ui.show_score']
                     %strong=t 'main.score'
                     = "#{(submission.points*100/submission.problem.full_score).to_i} "
                   = " ["
                   %tt
                     = submission.grader_comment
                   = "]"
                   %br
-                  %strong View:
-                  - if GraderConfiguration.show_grading_result
-                    = link_to '[detailed result]', :action => 'result', :id => submission.id
-            -     = link_to "#{t 'main.cmp_msg'}", {:action => 'compiler_msg', :id => submission.id}, {popup: true,class: 'btn btn-xs btn-info'}
+            +   = link_to "#{t 'main.cmp_msg'}", {:action => 'compiler_msg', :id => submission.id}, {popup: true,class: 'btn btn-xs btn-info'} if submission.graded_at
                 = link_to "#{t 'main.src_link'}", download_submission_path(submission.id), class: 'btn btn-xs btn-info'
                 = link_to "#{t 'main.submissions_link'}", problem_submissions_path(problem_id), class: 'btn btn-xs btn-info'

app/views/graders/task.html.haml ¶ +1 -1

               %h1= "Task: #{@task.id}"
               %p
                 User:
                 = "#{@task.submission.user.login}"
                 %br/
                 Status:
                 = "#{@task.status_str} (at #{format_short_time(@task.updated_at)})"
                 %br/
                 = "Submission: #{@task.submission_id}"
                 - if @task.submission !=nil
-            -     = link_to '[view submission]', :action => 'submission', :id => @task.submission.id
+            +     = link_to '[view submission]', submission_path( @task.submission.id )
                 %br/
                 = "Submitted at: #{format_short_time(@task.created_at)}"
                 %br/

app/views/layouts/_header.html.haml ¶ +2

               %header.navbar.navbar-default.navbar-fixed-top
                 %nav
                   .container-fluid
                     .navbar-header
                       %button.navbar-toggle.collapsed{ data: {toggle: 'collapse', target: '#navbar-collapse'} }
                         %span.sr-only Togggle Navigation
                         %span.icon-bar
                         %span.icon-bar
                         %span.icon-bar
                       %a.navbar-brand{href: main_list_path}
                         %span.glyphicon.glyphicon-home
                         MAIN
                     .collapse.navbar-collapse#navbar-collapse
                       %ul.nav.navbar-nav
                         / submission
                         - if (@current_user!=nil) and (GraderConfiguration.show_tasks_to?(@current_user))
                           %li.dropdown
                             %a.dropdown-toggle{href: '#', data: {toggle:'dropdown'},  aria: {haspopup:"true", expanded:"false"}, role: "button"}
                               = "#{I18n.t 'menu.submissions'}"
                               %span.caret
                             %ul.dropdown-menu
                               = add_menu("View", 'submissions', 'index')
                               = add_menu("Self Test", 'test', 'index')
                         / hall of fame
                         - if GraderConfiguration['right.user_hall_of_fame']
                           = add_menu("#{I18n.t 'menu.hall_of_fame'}", 'report', 'problem_hof')
                         / display MODE button (with countdown in contest mode)
                         - if GraderConfiguration.analysis_mode?
                           %div.navbar-btn.btn.btn-success#countdown= "ANALYSIS MODE"
                         - elsif GraderConfiguration.time_limit_mode?
                           - if @current_user.contest_finished?
                             %div.navbar-btn.btn.btn-danger#countdown= "Contest is over"
                           - elsif !@current_user.contest_started?
                             %div.navbar-btn.btn.btn-primary#countdown= (t 'title_bar.contest_not_started')
                           - else
                             %div.navbar-btn.btn.btn-primary#countdown asdf
                             :javascript
                               $("#countdown").countdown({until: "+#{@current_user.contest_time_left.to_i}s", layout: 'Time left: {hnn}:{mnn}:{snn}'});
                         / admin section
                         - if (@current_user!=nil) and (session[:admin])
                           / management
                           %li.dropdown
                             %a.dropdown-toggle{href: '#', data: {toggle:'dropdown'},  aria: {haspopup:"true", expanded:"false"}, role: "button"}
                               Manage
                               %span.caret
                             %ul.dropdown-menu
                               = add_menu( 'Announcements', 'announcements', 'index')
                               = add_menu( 'Problems', 'problems', 'index')
+            +                 = add_menu( 'Tags', 'tags', 'index')
                               = add_menu( 'Users', 'user_admin', 'index')
+            +                 = add_menu( 'User Groups', 'groups', 'index')
                               = add_menu( 'Graders', 'graders', 'list')
                               = add_menu( 'Message ', 'messages', 'console')
                               %li.divider{role: 'separator'}
                               = add_menu( 'System config', 'configurations', 'index')
                               %li.divider{role: 'separator'}
                               = add_menu( 'Sites', 'sites', 'index')
                               = add_menu( 'Contests', 'contest_management', 'index')
                           / report
                           %li.dropdown
                             %a.dropdown-toggle{href: '#', data: {toggle:'dropdown'},  aria: {haspopup:"true", expanded:"false"}, role: "button"}
                               Report
                               %span.caret
                             %ul.dropdown-menu
                               = add_menu( 'Current Score', 'report', 'current_score')
                               = add_menu( 'Score Report', 'report', 'max_score')
                               = add_menu( 'Report', 'report', 'multiple_login')
                           - if (ungraded = Submission.where('graded_at is null').where('submitted_at < ?', 1.minutes.ago).count) > 0
                             =link_to "#{ungraded} backlogs!",
                               grader_list_path,
                               class: 'navbar-btn btn btn-default btn-warning', data: {toggle: 'tooltip'},title: 'Number of ungraded submission'
                       %ul.nav.navbar-nav.navbar-right
                         = add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-question-sign')}".html_safe, 'main', 'help')
                         = add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-comment')}".html_safe, 'messages', 'list', {title: I18n.t('menu.messages'), data: {toggle: 'tooltip'}})
                         - if GraderConfiguration['system.user_setting_enabled']
                           = add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-cog')}".html_safe, 'users', 'index', {title: I18n.t('menu.settings'), data: {toggle: 'tooltip'}})
                         = add_menu("#{content_tag(:span,'',class: 'glyphicon glyphicon-log-out')} #{@current_user.full_name}".html_safe, 'main', 'login', {title: I18n.t('menu.log_out'), data: {toggle: 'tooltip'}})
               /
                 - if (@current_user!=nil) and (session[:admin])
                   %nav.navbar.navbar-fixed-top.navbar-inverse.secondnavbar
                     .container-fluid
                       .collapse.navbar-collapse
                         %ul.nav.navbar-nav
                           = add_menu( '[Announcements]', 'announcements', 'index')
                           = add_menu( '[Msg console]', 'messages', 'console')
                           = add_menu( '[Problems]', 'problems', 'index')
                           = add_menu( '[Users]', 'user_admin', 'index')
                           = add_menu( '[Results]', 'user_admin', 'user_stat')
                           = add_menu( '[Report]', 'report', 'multiple_login')
                           = add_menu( '[Graders]', 'graders', 'list')
                           = add_menu( '[Contests]', 'contest_management', 'index')
                           = add_menu( '[Sites]', 'sites', 'index')
                           = add_menu( '[System config]', 'configurations', 'index')

app/views/main/_login_box.html.haml ¶ +18 -14

               %b= GraderConfiguration['ui.front.welcome_message']
               %br/
               - if !@hidelogin
                 =t 'login.message'
                 %br/
                 %br/
                 - if flash[:notice]
                   %hr/
                   %b= flash[:notice]
                   %hr/
                 %div{ :style => "border: solid 1px gray; padding: 4px; background: #eeeeff;"}
-            -     = form_tag login_login_path do
-            -       %table
-            -         %tr
-            -           %td{:align => "right"}
-            -             ="#{t 'login_label'}:"
-            -           %td= text_field_tag 'login'
-            -         %tr
-            -           %td{:align => "right"}
-            -             ="#{t 'password_label'}:"
-            -           %td= password_field_tag
+            +     = form_tag login_login_path, {class: 'form-horizontal'} do
+            +       .form-group
+            +         =label_tag :login, "Login",class: 'col-sm-3 control-label'
+            +         .col-sm-9
+            +           =text_field_tag :login, nil, class: 'form-control'
+            +       .form-group
+            +         =label_tag :password, "Password", class: 'col-sm-3 control-label'
+            +         .col-sm-9
+            +           =password_field_tag :password, nil, class: 'form-control'
-                      - unless GraderConfiguration['right.bypass_agreement']
-            -           %tr
-            -             %td{:align => "right"}= check_box_tag 'accept_agree'
-            -             %td ยอมรับข้อตกลงการใช้งาน
+            +         .form-group
+            +           .col-sm-offset-3.col-sm-9
+            +             .checkbox
+            +               %label
+            +                 = check_box_tag 'accept_agree'
+            +                 ยอมรับข้อตกลงการใช้งาน
-            -       = submit_tag t('login.login_submit')
+            +       .form-group
+            +         .col-sm-offset-3.col-sm-9
+            +           = submit_tag t('login.login_submit'), class: 'btn btn-primary'
               %br/
               - if GraderConfiguration['system.online_registration']
                 =t 'login.participation'
                 %b
                   = "#{t 'login.please'} "
                   = link_to "#{t 'login.register'}", :controller => :users, :action => :new
                 %br/
                 = link_to "#{t 'login.forget_password'}", :controller => :users, :action => :forget

app/views/main/_problem.html.haml ¶ +1 -1

               %tr
                 %td
                   - if @current_user and @current_user.admin?
                     = link_to problem.name, stat_problem_path(problem)
                   - else
                     = "#{problem.name}"
                 %td
                   = "#{problem.full_name}"
                   %br
                   = link_to_description_if_any "[#{t 'main.problem_desc'}] <span class='glyphicon glyphicon-file'></span>".html_safe, problem
                 %td
                   = @prob_submissions[problem.id][:count]
-            -     = link_to "[subs]", main_submission_path(problem.id)
+            +     -#= link_to "[subs]", main_submission_path(problem.id)
                 %td
                   = render :partial => 'submission_short',
                     :locals => {:submission => @prob_submissions[problem.id][:submission], :problem_name => problem.name, :problem_id => problem.id }
                 %td
                   - if @prob_submissions[problem.id][:submission]
                     = link_to 'Edit', edit_submission_path(@prob_submissions[problem.id][:submission]), class: 'btn btn-success'
                   - else
                     = link_to 'New', direct_edit_problem_submissions_path(problem.id), class: 'btn btn-success'

app/views/main/_submission_short.html.haml ¶ +1 -1

               - if submission.nil?
                 = "-"
               - else
                 - unless submission.graded_at
                   = t 'main.submitted_at'
                   = format_short_time(submission.submitted_at.localtime)
                 - else
                   %strong= t 'main.graded_at'
                   = "#{format_short_time(submission.graded_at.localtime)} "
                   %br
                   - if GraderConfiguration['ui.show_score']
                     %strong=t 'main.score'
                     = "#{(submission.points*100/submission.problem.full_score).to_i} "
                   = " ["
-            -     %tt
+            +     %tt.grader-comment
                     = submission.grader_comment
                   = "]"
                   %br
                   %strong View:
                   - if GraderConfiguration.show_grading_result
                     = link_to '[detailed result]', :action => 'result', :id => submission.id
                   /= link_to "#{t 'main.cmp_msg'}", {:action => 'compiler_msg', :id => submission.id}, {popup: true,class: 'btn btn-xs btn-info'}
                   = link_to "#{t 'main.cmp_msg'}", compiler_msg_submission_path(submission.id), {popup: true,remote: true,class: 'btn btn-xs btn-info'}
                 = link_to "#{t 'main.src_link'}",{:action => 'source', :id => submission.id}, class: 'btn btn-xs btn-info'
                 = link_to "#{t 'main.submissions_link'}", problem_submissions_path(problem_id), class: 'btn btn-xs btn-info'
                 - if GraderConfiguration.show_testcase
                   = link_to "testcases", show_problem_testcases_path(problem_id), class: 'btn btn-xs btn-info'

app/views/main/login.html.haml ¶ +3 -4

               %h1= GraderConfiguration['ui.front.title']
-            - %table
-            -   %tr
-            -     %td
+            + .row
+            +   .col-md-6
-                    - if @announcements.length!=0
-                      .announcementbox{:style => 'margin-top: 0px'}
-                        %span{:class => 'title'}
-                          Announcements
-                        = render :partial => 'announcement', :collection => @announcements
-            -     %td{:style => 'vertical-align: top; width: 40%; padding-left: 20px;'}
+            +   .col-md-4{style: "padding-left: 20px;"}
-                    = render :partial => 'login_box'

app/views/problems/_form.html.haml ¶ +3

               = error_messages_for 'problem'
               / [form:problem]
               .form-group
                 %label{:for => "problem_name"} Name
                 = text_field 'problem', 'name', class: 'form-control'
                 %small
                   Do not directly edit the problem name, unless you know what you are doing. If you want to change the name, use the name change button in the problem management menu instead.
               .form-group
                 %label{:for => "problem_full_name"} Full name
                 = text_field 'problem', 'full_name', class: 'form-control'
               .form-group
                 %label{:for => "problem_full_score"} Full score
                 = text_field 'problem', 'full_score', class: 'form-control'
               .form-group
+            +   %label{:for => "problem_full_score"} Tags
+            +   = collection_select(:problem, :tag_ids, Tag.all, :id, :name,  {}, {multiple: true, class: 'form-control select2'})
+            + .form-group
                 %label{:for => "problem_date_added"} Date added
                 = date_select 'problem', 'date_added', class: 'form-control'
               - # TODO: these should be put in model Problem, but I can't think of
               - #       nice default values for them.  These values look fine only
               - #       in this case (of lazily adding new problems).
               - @problem.available = true if @problem!=nil and @problem.available==nil
               - @problem.test_allowed = true if @problem!=nil and @problem.test_allowed==nil
               - @problem.output_only = false if @problem!=nil and @problem.output_only==nil
               .checkbox
                 %label{:for => "problem_available"}
                   = check_box :problem, :available
                   Available?
               .checkbox
                 %label{:for => "problem_test_allowed"}
                   = check_box :problem, :test_allowed
                   Test allowed?
               .checkbox
                 %label{:for => "problem_output_only"}
                   = check_box :problem, :output_only
                   Output only?
               = error_messages_for 'description'
               .form-group
                 %label{:for => "description_body"} Description
                 %br/
                 = text_area :description, :body, :rows => 10, :cols => 80,class: 'form-control'
               .form-group
                 %label{:for => "description_markdowned"} Markdowned?
                 = select "description",                                            |
                   "markdowned",                                                    |
                   [['True',true],['False',false]],                                 |
                   {:selected => (@description) ? @description.markdowned : false } |
               .form-group
                 %label{:for => "problem_url"} URL
                 %br/
                 = text_field 'problem', 'url',class: 'form-control'
               %p
                 Task PDF #{file_field_tag 'file'}
               / [eoform:problem]

app/views/problems/index.html.haml ¶ +16 -5

               - content_for :head do
                 = stylesheet_link_tag 'problems'
-            - %h1 Listing problems
+            + %h1 Problems
               %p
-            -   = link_to 'New problem', new_problem_path, class: 'btn btn-default btn-sm'
-            -   = link_to 'Manage problems', { action: 'manage'}, class: 'btn btn-default btn-sm'
-            -   = link_to 'Import problems', {:action => 'import'}, class: 'btn btn-default btn-sm'
+            +   = link_to 'Import problems', {:action => 'import'}, class: 'btn btn-success btn-sm'
+            +   = link_to 'New problem', new_problem_path, class: 'btn btn-success btn-sm'
+            +   = link_to 'Bulk Manage', { action: 'manage'}, class: 'btn btn-info btn-sm'
                 = link_to 'Turn off all problems', {:action => 'turn_all_off'}, class: 'btn btn-default btn-sm'
                 = link_to 'Turn on all problems', {:action => 'turn_all_on'}, class: 'btn btn-default btn-sm'
               .submitbox
                 = form_tag :action => 'quick_create' do
                   %b Quick New:
                   %label{:for => "problem_name"} Name
                   = text_field 'problem', 'name'
                   |
                   %label{:for => "problem_full_name"} Full name
                   = text_field 'problem', 'full_name'
                   = submit_tag "Create"
               %table.table.table-condense.table-hover
                 %thead
                   %th Name
                   %th Full name
                   %th.text-right Full score
+            +     %th Tags
+            +     %th
+            +       Submit
+            +       %sup{class: 'text-primary',data: {toggle: 'tooltip'}, title: 'Admin can always submit to any problem' } [?]
                   %th Date added
                   %th.text-center
                     Avail?
                     %sup{class: 'text-primary',data: {toggle: 'tooltip'}, title: 'Let user submits to this problem?' } [?]
                   %th.text-center
                     View Data?
                     %sup{class: 'text-primary',data: {toggle: 'tooltip'}, title: 'Let user view the testcase of this problem?' } [?]
                   %th.text-center
                     Test?
                     %sup{class: 'text-primary',data: {toggle: 'tooltip'}, title: 'Let user uses test interface on this problem?' } [?]
                   - if GraderConfiguration.multicontests?
                     %th Contests
                 - for problem in @problems
                   %tr{:class => "#{(problem.available) ? "success" : "danger"}", :id => "prob-#{problem.id}", :name => "prob-#{problem.id}"}
                     - @problem=problem
                     %td= problem.name #in_place_editor_field :problem, :name, {}, :rows=>1
-            -       %td= problem.full_name #in_place_editor_field :problem, :full_name, {}, :rows=>1
+            +       %td
+            +         = problem.full_name #in_place_editor_field :problem, :full_name, {}, :rows=>1
+            +         = link_to_description_if_any "[#{t 'main.problem_desc'}] <span class='glyphicon glyphicon-file'></span>".html_safe, problem
                     %td.text-right= problem.full_score #in_place_editor_field :problem, :full_score, {}, :rows=>1
+            +       %td
+            +         - problem.tags.each do |t|
+            +           - #%button.btn.btn-default.btn-xs= t.name
+            +           %span.label.label-default= t.name
+            +       %td= link_to "Submit", direct_edit_problem_submissions_path(problem,@current_user.id), class: 'btn btn-xs btn-primary'
                     %td= problem.date_added
                     %td= toggle_button(@problem.available?, toggle_problem_path(@problem), "problem-avail-#{@problem.id}")
                     %td= toggle_button(@problem.view_testcase?, toggle_view_testcase_problem_path(@problem), "problem-view-testcase-#{@problem.id}")
                     %td= toggle_button(@problem.test_allowed?, toggle_test_problem_path(@problem), "problem-test-#{@problem.id}")
                     - if GraderConfiguration.multicontests?
                       %td
                         = problem.contests.collect { |c| c.name }.join(', ')
                     %td= link_to 'Stat', {:action => 'stat', :id => problem.id}, class: 'btn btn-info btn-xs btn-block'
                     %td= link_to 'Show', {:action => 'show', :id => problem}, class: 'btn btn-info btn-xs btn-block'
                     %td= link_to 'Edit', {:action => 'edit', :id => problem}, class: 'btn btn-info btn-xs btn-block'
                     %td= link_to 'Destroy', { :action => 'destroy', :id => problem }, :confirm => 'Are you sure?', :method => :delete, class: 'btn btn-danger btn-xs btn-block'
               %br/
               = link_to '[New problem]', :action => 'new'

app/views/problems/manage.html.haml ¶ +45 -12

               - content_for :head do
                 = stylesheet_link_tag 'problems'
                 = javascript_include_tag 'local_jquery'
               :javascript
                 $(document).ready( function() {
                   function shiftclick(start,stop,value) {
                     $('tr input').each( function(id,input) {
                       var $input=$(input);
                       var iid=parseInt($input.attr('id').split('-')[2]);
                       if(iid>=start&&iid<=stop){
                       $input.prop('checked',value)
                       }
                     });
                   }
                   $('tr input').click( function(e)  {
                     if (e.shiftKey) {
                       stop = parseInt($(this).attr('id').split('-')[2]);
                       var orig_stop = stop
                       if (typeof start !== 'undefined') {
                         if (start > stop) {
                           var tmp = start;
                           start = stop;
                           stop = tmp;
                         }
                         shiftclick(start,stop,$(this).is(':checked') )
                       }
                       start = orig_stop
                     } else {
                       start = parseInt($(this).attr('id').split('-')[2]);
                     }
                   });
                 });
               %h1 Manage problems
-            - %p= link_to '[Back to problem list]', :action => 'list'
+            + %p= link_to '[Back to problem list]', problems_path
               = form_tag :action=>'do_manage' do
-            -   .submitbox
+            +   .panel.panel-primary
+            +     .panel-heading
+            +       Action
+            +     .panel-body
+            +       .submit-box
                   What do you want to do to the selected problem?
                   %br/
                   (You can shift-click to select a range of problems)
-            -     %ul
+            +         %ul.form-inline
                     %li
-            -         Change date added to
-            -         = select_date Date.current, :prefix => 'date_added'
+            +             Change "Date added" to
+            +             .input-group.date
+            +               = text_field_tag :date_added, class: 'form-control'
+            +               %span.input-group-addon
+            +                 %span.glyphicon.glyphicon-calendar
+            +             -# = select_date Date.current, :prefix => 'date_added'
                       &nbsp;&nbsp;&nbsp;
-            -         = submit_tag 'Change', :name => 'change_date_added'
+            +             = submit_tag 'Change', :name => 'change_date_added', class: 'btn btn-primary btn-sm'
                     %li
-            -         Set available to
-            -         = submit_tag 'True', :name => 'enable_problem'
-            -         = submit_tag 'False', :name => 'disable_problem'
+            +             Set "Available" to
+            +             = submit_tag 'True', :name => 'enable_problem', class: 'btn btn-primary btn-sm'
+            +             = submit_tag 'False', :name => 'disable_problem', class: 'btn btn-primary btn-sm'
                     - if GraderConfiguration.multicontests?
                       %li
-            -           Add to
+            +               Add selected problems to contest
                         = select("contest","id",Contest.all.collect {|c| [c.title, c.id]})
-            -           = submit_tag 'Add', :name => 'add_to_contest'
+            +               = submit_tag 'Add', :name => 'add_to_contest', class: 'btn btn-primary btn-sm'
+            +           %li
+            +             Add selected problems to user group
+            +             = select_tag "group_id", options_from_collection_for_select( Group.all, 'id','name',params[:group_name]), id: 'group_name',class: 'select2'
+            +             = submit_tag 'Add', name: 'add_group', class: 'btn btn-primary'
+            +           %li
+            +             Add the following tags to the selected problems
+            +             = select_tag "tag_ids", options_from_collection_for_select( Tag.all, 'id','name'), id: 'tags_name',class: 'select2', multiple: true, data: {placeholder: 'Select tags by clicking', width: "200px"}
+            +             = submit_tag 'Add', name: 'add_tags', class: 'btn btn-primary'
-            -   %table
+            +   %table.table.table-hover.datatable
+            +     %thead
                   %tr{style: "text-align: left;"}
                     %th= check_box_tag 'select_all'
                     %th Name
                     %th Full name
+            +         %th Tags
                     %th Available
                     %th Date added
                     - if GraderConfiguration.multicontests?
                       %th Contests
+            +     %tbody
                   - num = 0
                   - for problem in @problems
                     - num += 1
                     %tr{:id => "row-prob-#{problem.id}", :name=> "prob-#{problem.id}"}
                       %td= check_box_tag "prob-#{problem.id}-#{num}"
                       %td= problem.name
                       %td= problem.full_name
+            +           %td
+            +             - problem.tags.each do |t|
+            +               %span.label.label-default= t.name
                       %td= problem.available
                       %td= problem.date_added
                       - if GraderConfiguration.multicontests?
                         %td
                           - problem.contests.each do |contest|
                             = "(#{contest.name} [#{link_to 'x', :action => 'remove_contest', :id => problem.id, :contest_id => contest.id }])"
+            +
+            + :javascript
+            +   $('.input-group.date').datetimepicker({
+            +     format: 'DD/MMM/YYYY',
+            +     showTodayButton: true,
+            +     widgetPositioning: {horizontal: 'auto', vertical: 'bottom'},
+            +
+            +   });
+            +   $('.datatable').DataTable({
+            +     paging: false
+            +   });

app/views/problems/stat.html.haml ¶ +10 -4

               :css
                 .fix-width {
                   font-family: "Consolas, Monaco, Droid Sans Mono,Mono, Monospace,Courier"
                 }
               %h1 Problem stat: #{@problem.name}
               %h2 Overview
               %table.info
                 %thead
                   %tr.info-head
                     %th Stat
                     %th Value
                 %tbody
                   %tr{class: cycle('info-even','info-odd')}
                     %td Submissions
                     %td= @submissions.count
                   %tr{class: cycle('info-even','info-odd')}
                     %td Solved/Attempted User
                     %td #{@summary[:solve]}/#{@summary[:attempt]} (#{(@summary[:solve]*100.0/@summary[:attempt]).round(1)}%)
               %h2 Submissions Count
               = render partial: 'application/bar_graph', locals: { histogram: @histogram }
               %h2 Submissions
               - if @submissions and @submissions.count > 0
-            -   %table.info#main_table
+            +   %table#main_table.table.table-condensed.table-striped
                   %thead
-            -       %tr.info-head
+            +       %tr
                       %th ID
                       %th Login
                       %th Name
                       %th Submitted_at
+            +         %th language
                       %th Points
                       %th comment
                       %th IP
                   %tbody
                     - row_odd,curr = true,''
                     - @submissions.each do |sub|
                       - next unless sub.user
                       - row_odd,curr = !row_odd, sub.user if curr != sub.user
-            -         %tr{class: row_odd ? "info-odd" : "info-even"}
+            +         %tr
                         %td= link_to sub.id, submission_path(sub)
                         %td= link_to sub.user.login, stat_user_path(sub.user)
                         %td= sub.user.full_name
-            -           %td= time_ago_in_words(sub.submitted_at) + " ago"
+            +           %td{data: {order: sub.submitted_at}}= time_ago_in_words(sub.submitted_at) + " ago"
+            +           %td= sub.language.name
                         %td= sub.points
                         %td.fix-width= sub.grader_comment
                         %td= sub.ip_address
               - else
                 No submission
+            + :javascript
+            +   $("#main_table").DataTable({
+            +     paging: false
+            +   });

app/views/report/_score_table.html.haml ¶ +35

               %table.table.sortable.table-striped.table-bordered.table-condensed
                 %thead
                   %tr
                     %th Login
                     %th Name
                     / %th Activated?
                     / %th Logged_in
                     / %th Contest(s)
                     %th Remark
                     - @problems.each do |p|
                       %th.text-right= p.name.gsub('_',' ')
                     %th.text-right Total
                     %th.text-right Passed
                 %tbody
+            +     - sum = Array.new(@scorearray[0].count,0)
+            +     - nonzero = Array.new(@scorearray[0].count,0)
+            +     - full = Array.new(@scorearray[0].count,0)
                   - @scorearray.each do |sc|
                     %tr
                       - total,num_passed = 0,0
                       - sc.each_index do |i|
                         - if i == 0
                           %td= link_to sc[i].login, stat_user_path(sc[i])
                           %td= sc[i].full_name
                           / %td= sc[i].activated
                           / %td= sc[i].try(:contest_stat).try(:started_at) ? 'yes' : 'no'
                           / %td= sc[i].contests.collect {|c| c.name}.join(', ')
                           %td= sc[i].remark
                         - else
                           %td.text-right= sc[i][0]
                           - total += sc[i][0]
                           - num_passed += 1 if sc[i][1]
+            +             - sum[i] += sc[i][0]
+            +             - nonzero[i] += 1 if sc[i][0] > 0
+            +             - full[i] += 1 if sc[i][1]
                       %td.text-right= total
                       %td.text-right= num_passed
+            +     %tfoot
+            +       %tr
+            +         %td Summation
+            +         %td
+            +         %td
+            +         - sum.each.with_index do |s,i|
+            +           - next if i == 0
+            +           %td.text-right= number_with_delimiter(s)
+            +         %td
+            +         %td
+            +       %tr
+            +         %td partial solver
+            +         %td
+            +         %td
+            +         - nonzero.each.with_index do |s,i|
+            +           - next if i == 0
+            +           %td.text-right= number_with_delimiter(s)
+            +         %td
+            +         %td
+            +       %tr
+            +         %td Full solver
+            +         %td
+            +         %td
+            +         - full.each.with_index do |s,i|
+            +           - next if i == 0
+            +           %td.text-right= number_with_delimiter(s)
+            +         %td
+            +         %td
+            +
               :javascript
                 $.bootstrapSortable(true,'reversed')

app/views/report/max_score.html.haml ¶ +2 -2

               %h1 Maximum score
               = form_tag report_show_max_score_path
               .row
                 .col-md-4
                   .panel.panel-primary
                     .panel-heading
                       Problems
                     .panel-body
                       %p
                         Select problem(s) that we wish to know the score.
                       = label_tag :problem_id, "Problems"
                       = select_tag 'problem_id[]',
                           options_for_select(Problem.all.collect {|p| ["[#{p.name}] #{p.full_name}", p.id]},params[:problem_id]),
                           { class: 'select2 form-control', multiple: "true" }
                 .col-md-4
                   .panel.panel-primary
                     .panel-heading
                       Submission range
                     .panel-body
                       %p
                         Input minimum and maximum range of submission ID that should be included. A blank value for min and max means -1 and infinity, respectively.
                       .form-group
                         = label_tag :from, "Min"
                         = text_field_tag 'from_id', @since_id, class: "form-control"
                       .form-group
                         = label_tag :from, "Max"
                         = text_field_tag 'to_id', @until_id, class: "form-control"
                 .col-md-4
                   .panel.panel-primary
                     .panel-heading
                       Users
                     .panel-body
                       .radio
                         %label
-            -             = radio_button_tag 'users', 'all', true
+            +             = radio_button_tag 'users', 'all', (params[:users] == "all")
                           All users
                       .radio
                         %label
-            -             = radio_button_tag 'users', 'enabled'
+            +             = radio_button_tag 'users', 'enabled', (params[:users] == "enabled")
                           Only enabled users
               .row
                 .col-md-12
                   = button_tag 'Show', class: "btn btn-primary btn-large", value: "show"
                   = button_tag 'Download CSV', class: "btn btn-primary btn-large", value: "download"
               - if @scorearray
                 %h2 Result
                 =render "score_table"

app/views/sites/edit.html.haml ¶ +30 -18

		@@ -1,24 +1,36
1	1	%h1 Editing site
2	2	= error_messages_for :site
3	3	= form_for(@site) do \|f\|
4		- %p
5		- %b Name
6		- %br/
7		- = f.text_field :name
8		- %p
9		- %b Password
10		- %br/
11		- = f.text_field :password
12		- %p
13		- %b Started
14		- %br/
15		- = f.check_box :started
16		- %p
17		- %b Start time
18		- %br/
19		- = f.datetime_select :start_time, :include_blank => true
20		- %p
21		- = f.submit "Update"
	4	+ .row
	5	+ .col-md-4
	6	+ .form-group.field
	7	+ = f.label :name, "Name"
	8	+ = f.text_field :name, class: 'form-control'
	9	+ .form-group.field
	10	+ = f.label :password, "Password"
	11	+ = f.text_field :password, class: 'form-control'
	12	+ .form-group.field
	13	+ = f.label :started, "Started"
	14	+ = f.check_box :started, class: 'form-control'
	15	+ .form-group.field
	16	+ = f.label :start_time, "Start time"
	17	+ -# = f.datetime_select :start_time, :include_blank => true
	18	+ .input-group.date
	19	+ = f.text_field :start_time, class:'form-control' , value: (@site.start_time ? @site.start_time.strftime('%d/%b/%Y %H:%M') : '')
	20	+ %span.input-group-addon
	21	+ %span.glyphicon.glyphicon-calendar
	22	+ .actions
	23	+ = f.submit "Update", class: 'btn btn-primary'
	24	+ .col-md-8
	25	+
22	26	= link_to 'Show', @site
23	27	\|
24	28	= link_to 'Back', sites_path
	29	+
	30	+
	31	+ :javascript
	32	+ $('.input-group.date').datetimepicker({
	33	+ format: 'DD/MMM/YYYY HH:mm',
	34	+ showTodayButton: true,
	35	+ });
	36	+

app/views/submissions/edit.html.haml ¶ +4 -1

               %h2 Live submit
               %br
               %textarea#text_sourcecode{style: "display:none"}~ @source
               .container
                 .row
                   .col-md-12
                     .alert.alert-info
                       Write your code in the following box, choose language, and click submit button when finished
                 .row
                   .col-md-8
                     %div#editor{style: 'height: 500px; border-radius: 7px; font-size: 14px;'}
                   .col-md-4
+            +       - # submission form
                     = form_tag({controller: :main, :action => 'submit'}, :multipart => true, class: 'form') do
                       = hidden_field_tag 'editor_text', @source
                       = hidden_field_tag 'submission[problem_id]', @problem.id
                       .form-group
                         = label_tag "Task:"
                         = text_field_tag 'asdf', "#{@problem.long_name}", class: 'form-control', disabled: true
                       .form-group
                         = label_tag 'Language'
                         = select_tag 'language_id', options_from_collection_for_select(Language.all, 'id', 'pretty_name', @lang_id || Language.find_by_pretty_name("Python").id || Language.first.id), class: 'form-control select', style: "width: 100px"
                       .form-group
                         = submit_tag 'Submit', class: 'btn btn-success', id: 'live_submit',
                           data: {confirm: "Submitting this source code for task #{@problem.long_name}?"}
-            -       .panel.panel-info
+            +       - # latest submission status
+            +       .panel{class: (@submission && @submission.graded_at) ? "panel-info" : "panel-warning"}
                       .panel-heading
                         Latest Submission Status
                         = link_to "Refresh",get_latest_submission_status_submissions_path(@submission.user,@problem), class: "btn btn-default btn-sm", remote: true if @submission
                       .panel-body
+            +           %div#latest_status
                         - if @submission
                           = render :partial => 'submission_short',
                             :locals => {submission: @submission, problem_name: @problem.name, problem_id: @problem.id }
                 .row
                   .col-md-12
                     %h2 Console
                     %textarea#console{style: 'height: 100%; width: 100%;background-color:#000;color:#fff;font-family: consolas, monaco, "Droid Sans Mono";',rows: 20}
               :javascript
                 $(document).ready(function() {
                   e = ace.edit("editor")
                   e.setValue($("#text_sourcecode").val());
                   e.gotoLine(1);
                   $("#language_id").trigger('change');
                   brython();
                 });
               %script#__main__{type:'text/python3'}
                 :plain
                   import sys
                   import traceback
                   from browser import document as doc
                   from browser import window, alert, console
                   _credits = """    Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
                       for supporting Python development.  See www.python.org for more information."""
                   _copyright = """Copyright (c) 2012, Pierre Quentel pierre.quentel@gmail.com
                   All Rights Reserved.
                   Copyright (c) 2001-2013 Python Software Foundation.
                   All Rights Reserved.
                   Copyright (c) 2000 BeOpen.com.
                   All Rights Reserved.
                   Copyright (c) 1995-2001 Corporation for National Research Initiatives.
                   All Rights Reserved.
                   Copyright (c) 1991-1995 Stichting Mathematisch Centrum, Amsterdam.
                   All Rights Reserved."""
                   _license = """Copyright (c) 2012, Pierre Quentel pierre.quentel@gmail.com
                   All rights reserved.
                   Redistribution and use in source and binary forms, with or without
                   modification, are permitted provided that the following conditions are met:
                   Redistributions of source code must retain the above copyright notice, this
                   list of conditions and the following disclaimer. Redistributions in binary
                   form must reproduce the above copyright notice, this list of conditions and
                   the following disclaimer in the documentation and/or other materials provided
                   with the distribution.
                   Neither the name of the <ORGANIZATION> nor the names of its contributors may
                   be used to endorse or promote products derived from this software without
                   specific prior written permission.
                   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
                   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
                   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                   POSSIBILITY OF SUCH DAMAGE.
                   """
                   def credits():
                       print(_credits)
                   credits.__repr__ = lambda:_credits
                   def copyright():
                       print(_copyright)
                   copyright.__repr__ = lambda:_copyright
                   def license():
                       print(_license)
                   license.__repr__ = lambda:_license
                   def write(data):
                       doc['console'].value += str(data)
                   sys.stdout.write = sys.stderr.write = write
                   history = []
                   current = 0
                   _status = "main"  # or "block" if typing inside a block
                   # execution namespace
                   editor_ns = {'credits':credits,
                       'copyright':copyright,

app/views/submissions/get_latest_submission_status.js.haml ¶ +1 -1

		@@ -1,2 +1,2
1	1	:plain
2		- $("#latest_status").html("#{j render({partial: 'submission_short', locals: {submission: @submission, problem_name: @problem.name}})}")
	2	+ $("#latest_status").html("#{j render({partial: 'submission_short', locals: {submission: @submission, problem_name: @problem.name, problem_id: @problem.id}})}")

app/views/user_admin/bulk_manage.html.haml ¶ +9

               %h1 Bulk Manage User
               = form_tag bulk_manage_user_admin_path
               .row
                 .col-md-6
                   .panel.panel-primary
                     .panel-title.panel-heading
                       Filter User
                     .panel-body
                       Filtering users whose login match the following MySQL regex
                       .form-group
                         = label_tag "regex", 'Regex Pattern'
                         = text_field_tag "regex", params[:regex], class: 'form-control'
                       %p
                         Example
                       %ul
                         %li
                           %code root
                           matches every user whose login contains "root"
                         %li
                           %code ^56
                           matches every user whose login starts with "56"
                         %li
                           %code 21$
                           matches every user whose login ends with "21"
                 .col-md-6
                   .panel.panel-primary
                     .panel-title.panel-heading
                       Action
                     .panel-body
                       .row.form-group
                         .col-md-6
                           %label.checkbox-inline
                             = check_box_tag "enabled", true, params[:enabled]
                             Change "Enabled" to
                         .col-md-3
                           %label.radio-inline
                             = radio_button_tag "enable", 1, params[:enable] == '1', id: 'enable-yes'
                             Yes
                         .col-md-3
                           %label.radio-inline
                             = radio_button_tag "enable", 0, params[:enable] == '0', id: 'enable-no'
                             No
                       .row.form-group
                         .col-md-6
                           %label.checkbox-inline
                             = check_box_tag "gen_password", true, params[:gen_password]
                             Generate new random password
+            +         .row.form-group
+            +           .col-md-4
+            +             %label.checkbox-inline
+            +               = check_box_tag "add_group", true, params[:add_group]
+            +               Add users to group
+            +           %label.col-md-3.control-label.text-right Group name
+            +           .col-md-5
+            +             = select_tag "group_name", options_from_collection_for_select( Group.all, 'id','name',params[:group_name]), id: 'group_name',class: 'form-control select2'
+            +
               .row
                 .col-md-12
                   = submit_tag "Preview Result", class: 'btn btn-default'
               - if @users
                 .row
                   .col-md-4
                     - if @action
                       %h2 Confirmation
                       - if @action[:set_enable]
                         .alert.alert-info The following users will be set #{(@action[:enabled] ? 'enable' : 'disable')}.
                       - if @action[:gen_password]
                         .alert.alert-info The password of the following users will be randomly generated.
                 .row
                   .col-md-4
                     = submit_tag "Perform", class: 'btn btn-primary'
                 .row
                   .col-md-12
                     The pattern matches #{@users.count} following users.
                     %br
                     - @users.each do |user|
                       = user.login
                       = ' '
                       = user.full_name
                       = ' '
                       = "(#{user.remark})" if user.remark
                       %br

app/views/user_admin/edit.html.haml ¶ +4 -2

               %h1 Editing user
-            - = form_tag :action => 'update', :id => @user do
+            + = form_tag( {:action => 'update', :id => @user}, {class: 'form-horizontal'}) do
                 = error_messages_for 'user'
                 = render partial: "form"
-            -   = submit_tag "Edit"
+            +   .form-group
+            +     .col-md-offset-2.col-md-4
+            +       = submit_tag "Edit", class: 'btn btn-primary'
               = link_to 'Show', :action => 'show', :id => @user
               |
               = link_to 'Back', :action => 'list'

app/views/user_admin/index.html.haml ¶ +17 -12

-            - %h1 Listing users
+            + %h1 Users
               .panel.panel-primary
                 .panel-title.panel-heading
                   Quick Add
                 .panel-body
                   = form_tag( {method: 'post'}, {class: 'form-inline'})  do
                     .form-group
                       = label_tag 'user_login', 'Login'
                       = text_field 'user', 'login', :size => 10,class: 'form-control'
                     .form-group
                       = label_tag 'user_full_name', 'Full Name'
                       = text_field 'user', 'full_name', :size => 10,class: 'form-control'
                     .form-group
                       = label_tag 'user_password', 'Password'
                       = text_field 'user', 'password', :size => 10,class: 'form-control'
                     .form-group
                       = label_tag 'user_password_confirmation', 'Confirm'
                       = text_field 'user', 'password_confirmation', :size => 10,class: 'form-control'
                     .form-group
                       = label_tag 'user_email', 'email'
                       = text_field 'user', 'email', :size => 10,class: 'form-control'
                     =submit_tag "Create", class: 'btn btn-primary'
               .panel.panel-primary
                 .panel-title.panel-heading
                   Import from site management
                 .panel-body
                   = form_tag({:action => 'import'}, :multipart => true,class: 'form form-inline') do
                     .form-group
                       = label_tag :file, 'File:'
                       .input-group
                         %span.input-group-btn
                           %span.btn.btn-default.btn-file
                             Browse
                             = file_field_tag 'file'
                         = text_field_tag '' , nil, {readonly: true, class: 'form-control'}
                     = submit_tag 'Submit', class: 'btn btn-default'
               %p
                 = link_to '+ New user', { :action => 'new' }, { class: 'btn btn-success '}
                 = link_to '+ New list of users', { :action => 'new_list' }, { class: 'btn btn-success '}
+            +   = link_to 'Bulk Manage', bulk_manage_user_admin_path , { class: 'btn btn-default btn-info'}
                 = link_to 'View administrators',{ :action => 'admin'}, { class: 'btn btn-default '}
-            -   = link_to 'Bulk Manage', bulk_manage_user_admin_path , { class: 'btn btn-default '}
                 = link_to 'Random passwords',{ :action => 'random_all_passwords'}, { class: 'btn btn-default '}
                 = link_to 'View active users',{ :action => 'active'}, { class: 'btn btn-default '}
                 = link_to 'Mass mailing',{ :action => 'mass_mailing'}, { class: 'btn btn-default '}
               - if GraderConfiguration.multicontests?
                 %br/
                 %b Multi-contest:
                 = link_to '[Manage bulk users in contests]', :action => 'contest_management'
                 View users in:
                 - @contests.each do |contest|
                   = link_to "[#{contest.name}]", :action => 'contests', :id => contest.id
                 = link_to "[no contest]", :action => 'contests', :id => 'none'
-            - Total #{@user_count} users |
-            - - if !@paginated
-            -   Display all users.
-            -   \#{link_to '[show in pages]', :action => 'index', :page => '1'}
-            - - else
-            -   Display in pages.
-            -   \#{link_to '[display all]', :action => 'index', :page => 'all'} |
-            -   \#{will_paginate @users, :container => false}
+            + -# Total #{@user_count} users |
+            + -# - if !@paginated
+            + -#   Display all users.
+            + -#   \#{link_to '[show in pages]', :action => 'index', :page => '1'}
+            + -# - else
+            + -#   Display in pages.
+            + -#   \#{link_to '[display all]', :action => 'index', :page => 'all'} |
+            + -#   \#{will_paginate @users, :container => false}
-            - %table.table.table-hover.table-condense
+            + %table.table.table-hover.table-condense.datatable
                 %thead
                   %th Login
                   %th Full name
                   %th email
                   %th Remark
                   %th
                     Activated
                     %sup{class: 'text-primary',data: {toggle: 'tooltip', placement: 'top'}, title: 'User has already confirmed the email?' } [?]
                   %th
                     Enabled
                     %sup{class: 'text-primary',data: {toggle: 'tooltip', placement: 'top'}, title: 'Allow the user to login?' } [?]
                   %th Last IP
                   %th
                   %th
                   %th
                   %th
                 - for user in @users
                   %tr
                     %td= link_to user.login, stat_user_path(user)
                     %td= user.full_name
                     %td= user.email
                     %td= user.remark
                     %td= toggle_button(user.activated?, toggle_activate_user_path(user),"toggle_activate_user_#{user.id}")
                     %td= toggle_button(user.enabled?, toggle_enable_user_path(user),"toggle_enable_user_#{user.id}")
                     %td= user.last_ip
                     %td= link_to 'Clear IP', {:action => 'clear_last_ip', :id => user, :page=>params[:page]}, :confirm => 'This will reset last logging in ip of the user, are you sure?', class: 'btn btn-default btn-xs btn-block'
                     %td= link_to 'Show', {:action => 'show', :id => user}, class: 'btn btn-default btn-xs btn-block'
                     %td= link_to 'Edit', {:action => 'edit', :id => user}, class: 'btn btn-default btn-xs btn-block'
-            -       %td= link_to 'Destroy', { :action => 'destroy', :id => user }, :confirm => 'Are you sure?', :method => :delete, class: 'btn btn-danger btn-xs btn-block'
+            +       %td= link_to 'Destroy', user_admin_destroy_path(user), data: {confirm: 'Are you sure?'}, method: :delete, class: 'btn btn-danger btn-xs btn-block'
               %br/
               = link_to '+ New user', { :action => 'new' }, { class: 'btn btn-success '}
               = link_to '+ New list of users', { :action => 'new_list' }, { class: 'btn btn-success '}
+            +
+            + :javascript
+            +   $('.datatable').DataTable({
+            +     'pageLength': 50
+            +   });

app/views/users/stat.html.haml ¶ +5 -1

               - content_for :header do
                 = javascript_include_tag 'local_jquery'
               :javascript
                 $(function () {
                   $('#submission_table').tablesorter({widgets: ['zebra']});
                 });
               :css
                 .fix-width {
                   font-family: Droid Sans Mono,Consolas, monospace, mono, Courier New, Courier;
                 }
               %h1= @user.full_name
               <b>Login:</b> #{@user.login} <br/>
               <b>Full name:</b> #{@user.full_name} <br />
               %h2 Problem Stat
               %table.info
                 %thead
                   %tr.info-head
                     %th Stat
                     %th Value
                 %tbody
                   %tr{class: cycle('info-even','info-odd')}
                     %td.info_param Submissions
                     %td= @summary[:count]
                   %tr{class: cycle('info-even','info-odd')}
                     %td.info_param Solved/Attempted Problem
                     %td #{@summary[:solve]}/#{@summary[:attempt]} (#{(@summary[:solve]*100.0/@summary[:attempt]).round(1)}%)
               %h2 Submission History
               =render partial: 'application/bar_graph', locals: {histogram: @histogram, param: {bar_width: 7}}
-            - %table.tablesorter-cafe#submission_table
+            + %table#submission_table.table.table-striped
                 %thead
                   %tr
                     %th ID
                     %th Problem code
                     %th Problem full name
                     %th Language
                     %th Submitted at
                     %th Result
                     %th Score
                     - if session[:admin]
                       %th IP
                 %tbody
                   - @submission.each do |s|
                     - next unless s.problem
                     %tr
                       %td= link_to s.id, submission_path(s)
                       %td= link_to s.problem.name, stat_problem_path(s.problem)
                       %td= s.problem.full_name
                       %td= s.language.pretty_name
                       %td  #{s.submitted_at.strftime('%Y-%m-%d %H:%M')} (#{time_ago_in_words(s.submitted_at)} ago)
                       %td.fix-width= s.grader_comment
                       %td= ( s.try(:points) ? (s.points*100/s.problem.full_score)  : '' )
                       - if session[:admin]
                         %td= s.ip_address
+            + :javascript
+            +   $("#submission_table").DataTable({
+            +     paging: false
+            +   });

config/application.rb.SAMPLE ¶ +1 -1

               require File.expand_path('../boot', __FILE__)
               require 'rails/all'
               if defined?(Bundler)
                 # If you precompile assets before deploying to production, use this line
                 Bundler.require(*Rails.groups(:assets => %w(development test)))
                 # If you want your assets lazily compiled in production, use this line
                 # Bundler.require(:default, :assets, Rails.env)
               end
               module CafeGrader
                 class Application < Rails::Application
                   # Settings in config/environments/* take precedence over those specified here.
                   # Application configuration should go into files in config/initializers
                   # -- all .rb files in that directory are automatically loaded.
                   # Custom directories with classes and modules you want to be autoloadable.
                   config.autoload_paths += %W(#{config.root}/lib)
                   # Only load the plugins named here, in the order given (default is alphabetical).
                   # :all can be used as a placeholder for all plugins not explicitly named.
                   # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
                   # Activate observers that should always be running.
                   # config.active_record.observers = :cacher, :garbage_collector, :forum_observer
                   # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
                   # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
                   config.time_zone = 'UTC'
                   # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
                   # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
                   config.i18n.default_locale = :en
                   # Configure the default encoding used in templates for Ruby 1.9.
                   config.encoding = "utf-8"
                   # Configure sensitive parameters which will be filtered from the log file.
                   config.filter_parameters += [:password]
                   # Enable escaping HTML in JSON.
                   config.active_support.escape_html_entities_in_json = true
                   # Use SQL instead of Active Record's schema dumper when creating the database.
                   # This is necessary if your schema can't be completely dumped by the schema dumper,
                   # like if you have constraints or database-specific column types
                   # config.active_record.schema_format = :sql
                   # Enable the asset pipeline
                   config.assets.enabled = true
                   # Version of your assets, change this if you want to expire all your assets
                   config.assets.version = '1.0'
                   # ---------------- IMPORTANT ----------------------
                   # If we deploy the app into a subdir name "grader", be sure to do "rake assets:precompile RAILS_RELATIVE_URL_ROOT=/grader"
                   # moreover, using the following line instead also known to works
                   #config.action_controller.relative_url_root = '/grader'
                   #font path
                   config.assets.paths << "#{Rails}/vendor/assets/fonts"
                   config.assets.precompile += ['announcement_refresh.js','effects.js','site_update.js']
                   config.assets.precompile += ['local_jquery.js','tablesorter-theme.cafe.css']
                   %w( announcements submissions configurations contests contest_management graders heartbeat
                       login main messages problems report site sites sources tasks
-            -         test user_admin users ).each do |controller|
+            +         test user_admin users testcases).each do |controller|
                     config.assets.precompile += ["#{controller}.js", "#{controller}.css"]
                   end
                 end
               end

config/routes.rb ¶ +17 -1

               CafeGrader::Application.routes.draw do
+            +   resources :tags
                 get "sources/direct_edit"
                 root :to => 'main#login'
                 #logins
                 get 'login/login',  to: 'login#login'
                 resources :contests
                 resources :sites
                 resources :announcements do
                   member do
                     get 'toggle','toggle_front'
                   end
                 end
                 resources :problems do
                   member do
                     get 'toggle'
                     get 'toggle_test'
                     get 'toggle_view_testcase'
                     get 'stat'
                   end
                   collection do
                     get 'turn_all_off'
                     get 'turn_all_on'
                     get 'import'
                     get 'manage'
                   end
+            +   end
+            +   resources :groups do
+            +     member do
+            +       post 'add_user', to: 'groups#add_user', as: 'add_user'
+            +       delete 'remove_user/:user_id', to: 'groups#remove_user', as: 'remove_user'
+            +       delete 'remove_all_user', to: 'groups#remove_all_user', as: 'remove_all_user'
+            +       post 'add_problem', to: 'groups#add_problem', as: 'add_problem'
+            +       delete 'remove_problem/:problem_id', to: 'groups#remove_problem', as: 'remove_problem'
+            +       delete 'remove_all_problem', to: 'groups#remove_all_problem', as: 'remove_all_problem'
+            +     end
+            +     collection do
+            +
+            +     end
                 end
                 resources :testcases, only: [] do
                   member do
                     get 'download_input'
                     get 'download_sol'
                   end
                   collection do
                     get 'show_problem/:problem_id(/:test_num)' => 'testcases#show_problem', as: 'show_problem'
                   end
                 end
                 resources :grader_configuration, controller: 'configurations'
                 resources :users do
                   member do
                     get 'toggle_activate', 'toggle_enable'
                     get 'stat'
                   end
                 end
                 resources :submissions do
                   member do
                     get 'download'
                     get 'compiler_msg'
                     get 'rejudge'
                   end
                   collection do
                     get 'prob/:problem_id', to: 'submissions#index', as: 'problem'
-            -       get 'direct_edit_problem/:problem_id', to: 'submissions#direct_edit_problem', as: 'direct_edit_problem'
+            +       get 'direct_edit_problem/:problem_id(/:user_id)', to: 'submissions#direct_edit_problem', as: 'direct_edit_problem'
                     get 'get_latest_submission_status/:uid/:pid', to: 'submissions#get_latest_submission_status', as: 'get_latest_submission_status'
                   end
                 end
                 #main
                 get "main/list"
                 get 'main/submission(/:id)', to: 'main#submission', as: 'main_submission'
                 #user admin
                 get 'user_admin/bulk_manage', to: 'user_admin#bulk_manage', as: 'bulk_manage_user_admin'
+            +   post 'user_admin', to: 'user_admin#create'
+            +   delete 'user_admin/:id', to: 'user_admin#destroy', as: 'user_admin_destroy'
                 #report
                 get 'report/current_score', to: 'report#current_score', as: 'report_current_score'
                 get 'report/problem_hof(/:id)', to: 'report#problem_hof', as: 'report_problem_hof'
                 get "report/login"
                 get 'report/max_score', to: 'report#max_score', as: 'report_max_score'
                 post 'report/show_max_score', to: 'report#show_max_score', as: 'report_show_max_score'
                 #
                 get 'tasks/view/:file.:ext' => 'tasks#view'
                 get 'tasks/download/:id/:file.:ext' => 'tasks#download'
                 get 'heartbeat/:id/edit' => 'heartbeat#edit'
                 #grader
                 get 'graders/list', to: 'graders#list', as: 'grader_list'
                 # See how all your routes lay out with "rake routes"
                 # This is a legacy wild controller route that's not recommended for RESTful applications.
                 # Note: This route will make all actions in every controller accessible via GET requests.
                 match ':controller(/:action(/:id))(.:format)', via:  [:get, :post]
               end

db/schema.rb ¶ +39 -1

               # encoding: UTF-8
               # This file is auto-generated from the current state of the database. Instead
               # of editing this file, please use the migrations feature of Active Record to
               # incrementally modify your database, and then regenerate this schema definition.
               #
               # Note that this schema.rb definition is the authoritative source for your
               # database schema. If you need to create the application database on another
               # system, you should be using db:schema:load, not running all the migrations
               # from scratch. The latter is a flawed and unsustainable approach (the more migrations
               # you'll amass, the slower it'll run and the greater likelihood for issues).
               #
               # It's strongly recommended that you check this file into your version control system.
-            - ActiveRecord::Schema.define(version: 20170427070345) do
+            + ActiveRecord::Schema.define(version: 20170914150742) do
                 create_table "announcements", force: :cascade do |t|
                   t.string   "author",       limit: 255
                   t.text     "body",         limit: 65535
                   t.boolean  "published"
                   t.datetime "created_at",                                 null: false
                   t.datetime "updated_at",                                 null: false
                   t.boolean  "frontpage",                  default: false
                   t.boolean  "contest_only",               default: false
                   t.string   "title",        limit: 255
                   t.string   "notes",        limit: 255
                 end
                 create_table "contests", force: :cascade do |t|
                   t.string   "title",      limit: 255
                   t.boolean  "enabled"
                   t.datetime "created_at",             null: false
                   t.datetime "updated_at",             null: false
                   t.string   "name",       limit: 255
                 end
                 create_table "contests_problems", id: false, force: :cascade do |t|
                   t.integer "contest_id", limit: 4
                   t.integer "problem_id", limit: 4
                 end
                 create_table "contests_users", id: false, force: :cascade do |t|
                   t.integer "contest_id", limit: 4
                   t.integer "user_id",    limit: 4
                 end
                 create_table "countries", force: :cascade do |t|
                   t.string   "name",       limit: 255
                   t.datetime "created_at",             null: false
                   t.datetime "updated_at",             null: false
                 end
                 create_table "descriptions", force: :cascade do |t|
                   t.text     "body",       limit: 65535
                   t.boolean  "markdowned"
                   t.datetime "created_at",               null: false
                   t.datetime "updated_at",               null: false
                 end
                 create_table "grader_configurations", force: :cascade do |t|
                   t.string   "key",         limit: 255
                   t.string   "value_type",  limit: 255
                   t.string   "value",       limit: 255
                   t.datetime "created_at",                null: false
                   t.datetime "updated_at",                null: false
                   t.text     "description", limit: 65535
                 end
                 create_table "grader_processes", force: :cascade do |t|
                   t.string   "host",       limit: 255
                   t.integer  "pid",        limit: 4
                   t.string   "mode",       limit: 255
                   t.boolean  "active"
                   t.datetime "created_at",             null: false
                   t.datetime "updated_at",             null: false
                   t.integer  "task_id",    limit: 4
                   t.string   "task_type",  limit: 255
                   t.boolean  "terminated"
                 end
                 add_index "grader_processes", ["host", "pid"], name: "index_grader_processes_on_ip_and_pid", using: :btree
+            +   create_table "groups", force: :cascade do |t|
+            +     t.string "name",        limit: 255
+            +     t.string "description", limit: 255
+            +   end
+            +
+            +   create_table "groups_problems", id: false, force: :cascade do |t|
+            +     t.integer "problem_id", limit: 4, null: false
+            +     t.integer "group_id",   limit: 4, null: false
+            +   end
+            +
+            +   add_index "groups_problems", ["group_id", "problem_id"], name: "index_groups_problems_on_group_id_and_problem_id", using: :btree
+            +
+            +   create_table "groups_users", id: false, force: :cascade do |t|
+            +     t.integer "group_id", limit: 4, null: false
+            +     t.integer "user_id",  limit: 4, null: false
+            +   end
+            +
+            +   add_index "groups_users", ["user_id", "group_id"], name: "index_groups_users_on_user_id_and_group_id", using: :btree
+            +
                 create_table "heart_beats", force: :cascade do |t|
                   t.integer  "user_id",    limit: 4
                   t.string   "ip_address", limit: 255
                   t.datetime "created_at",             null: false
                   t.datetime "updated_at",             null: false
                   t.string   "status",     limit: 255
                 end
                 add_index "heart_beats", ["updated_at"], name: "index_heart_beats_on_updated_at", using: :btree
                 create_table "languages", force: :cascade do |t|
                   t.string "name",        limit: 10
                   t.string "pretty_name", limit: 255
                   t.string "ext",         limit: 10
                   t.string "common_ext",  limit: 255
                 end
                 create_table "logins", force: :cascade do |t|
                   t.integer  "user_id",    limit: 4
                   t.string   "ip_address", limit: 255
                   t.datetime "created_at",             null: false
                   t.datetime "updated_at",             null: false
                 end
                 create_table "messages", force: :cascade do |t|
                   t.integer  "sender_id",           limit: 4
                   t.integer  "receiver_id",         limit: 4
                   t.integer  "replying_message_id", limit: 4
                   t.text     "body",                limit: 65535
                   t.boolean  "replied"
                   t.datetime "created_at",                        null: false
                   t.datetime "updated_at",                        null: false
                 end
                 create_table "problems", force: :cascade do |t|
                   t.string  "name",                 limit: 30
                   t.string  "full_name",            limit: 255
                   t.integer "full_score",           limit: 4
                   t.date    "date_added"
                   t.boolean "available"
                   t.string  "url",                  limit: 255
                   t.integer "description_id",       limit: 4
                   t.boolean "test_allowed"
                   t.boolean "output_only"
                   t.string  "description_filename", limit: 255
                   t.boolean "view_testcase"
                 end
+            +   create_table "problems_tags", force: :cascade do |t|
+            +     t.integer "problem_id", limit: 4
+            +     t.integer "tag_id",     limit: 4
+            +   end
+            +
+            +   add_index "problems_tags", ["problem_id", "tag_id"], name: "index_problems_tags_on_problem_id_and_tag_id", unique: true, using: :btree
+            +   add_index "problems_tags", ["problem_id"], name: "index_problems_tags_on_problem_id", using: :btree
+            +   add_index "problems_tags", ["tag_id"], name: "index_problems_tags_on_tag_id", using: :btree
+            +
                 create_table "rights", force: :cascade do |t|
                   t.string "name",       limit: 255
                   t.string "controller", limit: 255
                   t.string "action",     limit: 255
                 end
                 create_table "rights_roles", id: false, force: :cascade do |t|
                   t.integer "right_id", limit: 4
                   t.integer "role_id",  limit: 4
                 end
                 add_index "rights_roles", ["role_id"], name: "index_rights_roles_on_role_id", using: :btree
                 create_table "roles", force: :cascade do |t|
                   t.string "name", limit: 255
                 end
                 create_table "roles_users", id: false, force: :cascade do |t|
                   t.integer "role_id", limit: 4
                   t.integer "user_id", limit: 4
                 end
                 add_index "roles_users", ["user_id"], name: "index_roles_users_on_user_id", using: :btree
                 create_table "sessions", force: :cascade do |t|
                   t.string   "session_id", limit: 255
                   t.text     "data",       limit: 65535
                   t.datetime "updated_at"
                 end
                 add_index "sessions", ["session_id"], name: "index_sessions_on_session_id", using: :btree
                 add_index "sessions", ["updated_at"], name: "index_sessions_on_updated_at", using: :btree
                 create_table "sites", force: :cascade do |t|
                   t.string   "name",       limit: 255
                   t.boolean  "started"
                   t.datetime "start_time"
                   t.datetime "created_at",             null: false
                   t.datetime "updated_at",             null: false
                   t.integer  "country_id", limit: 4
                   t.string   "password",   limit: 255
                 end
                 create_table "submission_view_logs", force: :cascade do |t|
                   t.integer  "user_id",       limit: 4
                   t.integer  "submission_id", limit: 4
                   t.datetime "created_at",              null: false
                   t.datetime "updated_at",              null: false
                 end
                 create_table "submissions", force: :cascade do |t|
                   t.integer  "user_id",               limit: 4
                   t.integer  "problem_id",            limit: 4
                   t.integer  "language_id",           limit: 4
                   t.text     "source",                limit: 65535
                   t.binary   "binary",                limit: 65535
                   t.datetime "submitted_at"
                   t.datetime "compiled_at"
                   t.text     "compiler_message",      limit: 65535
                   t.datetime "graded_at"
                   t.integer  "points",                limit: 4
                   t.text     "grader_comment",        limit: 65535
                   t.integer  "number",                limit: 4
                   t.string   "source_filename",       limit: 255
                   t.float    "max_runtime",           limit: 24
                   t.integer  "peak_memory",           limit: 4
                   t.integer  "effective_code_length", limit: 4
                   t.string   "ip_address",            limit: 255
                 end
                 add_index "submissions", ["user_id", "problem_id", "number"], name: "index_submissions_on_user_id_and_problem_id_and_number", unique: true, using: :btree
                 add_index "submissions", ["user_id", "problem_id"], name: "index_submissions_on_user_id_and_problem_id", using: :btree
+            +   create_table "tags", force: :cascade do |t|
+            +     t.string   "name",        limit: 255,   null: false
+            +     t.text     "description", limit: 65535
+            +     t.boolean  "public"
+            +     t.datetime "created_at",                null: false
+            +     t.datetime "updated_at",                null: false
+            +   end
+            +
                 create_table "tasks", force: :cascade do |t|
                   t.integer  "submission_id", limit: 4
                   t.datetime "created_at"
                   t.integer  "status",        limit: 4
                   t.datetime "updated_at"
                 end
                 add_index "tasks", ["submission_id"], name: "index_tasks_on_submission_id", using: :btree
                 create_table "test_pairs", force: :cascade do |t|
                   t.integer  "problem_id", limit: 4
                   t.text     "input",      limit: 16777215
                   t.text     "solution",   limit: 16777215
                   t.datetime "created_at",                  null: false
                   t.datetime "updated_at",                  null: false
                 end
                 create_table "test_requests", force: :cascade do |t|
                   t.integer  "user_id",          limit: 4
                   t.integer  "problem_id",       limit: 4
                   t.integer  "submission_id",    limit: 4
                   t.string   "input_file_name",  limit: 255
                   t.string   "output_file_name", limit: 255
                   t.string   "running_stat",     limit: 255
                   t.integer  "status",           limit: 4
                   t.datetime "updated_at",                     null: false
                   t.datetime "submitted_at"
                   t.datetime "compiled_at"
                   t.text     "compiler_message", limit: 65535
                   t.datetime "graded_at"
                   t.string   "grader_comment",   limit: 255
                   t.datetime "created_at",                     null: false
                   t.float    "running_time",     limit: 24
                   t.string   "exit_status",      limit: 255
                   t.integer  "memory_usage",     limit: 4
                 end
                 add_index "test_requests", ["user_id", "problem_id"], name: "index_test_requests_on_user_id_and_problem_id", using: :btree
                 create_table "testcases", force: :cascade do |t|
                   t.integer  "problem_id", limit: 4
                   t.integer  "num",        limit: 4
                   t.integer  "group",      limit: 4
                   t.integer  "score",      limit: 4
                   t.text     "input",      limit: 4294967295
                   t.text     "sol",        limit: 4294967295
                   t.datetime "created_at"
                   t.datetime "updated_at"
                 end
                 add_index "testcases", ["problem_id"], name: "index_testcases_on_problem_id", using: :btree
                 create_table "user_contest_stats", force: :cascade do |t|
                   t.integer  "user_id",       limit: 4
                   t.datetime "started_at"
                   t.datetime "created_at",              null: false
                   t.datetime "updated_at",              null: false
                   t.boolean  "forced_logout"
                 end
                 create_table "users", force: :cascade do |t|
                   t.string   "login",           limit: 50
                   t.string   "full_name",       limit: 255
                   t.string   "hashed_password", limit: 255
                   t.string   "salt",            limit: 5
                   t.string   "alias",           limit: 255
                   t.string   "email",           limit: 255
                   t.integer  "site_id",         limit: 4
                   t.integer  "country_id",      limit: 4
                   t.boolean  "activated",                   default: false
                   t.datetime "created_at"
                   t.datetime "updated_at"
                   t.boolean  "enabled",                     default: true
                   t.string   "remark",          limit: 255
                   t.string   "last_ip",         limit: 255
                   t.string   "section",         limit: 255
                 end
                 add_index "users", ["login"], name: "index_users_on_login", unique: true, using: :btree
+            +   add_foreign_key "problems_tags", "problems"
+            +   add_foreign_key "problems_tags", "tags"
               end

db/seeds.rb ¶ +10 -1

                  {
                    :key => 'right.user_view_submission',
                    :value_type => 'boolean',
                    :default_value => 'false',
                    :description => 'If true, any user can view submissions of every one.'
                  },
                  {
                    :key => 'right.bypass_agreement',
                    :value_type => 'boolean',
                    :default_value => 'true',
                    :description => 'When false, a user must accept usage agreement before login'
                  },
                  {
                    :key => 'right.heartbeat_response',
                    :value_type => 'string',
                    :default_value => 'OK',
                    :description => 'Heart beat response text'
                  },
                  {
                    :key => 'right.heartbeat_response_full',
                    :value_type => 'string',
                    :default_value => 'OK',
                    :description => 'Heart beat response text when user got full score (set this value to the empty string to disable this feature)'
                  },
                  {
                    :key => 'right.view_testcase',
                    :value_type => 'boolean',
                    :default_value => 'false',
                    :description => 'When true, any user can view/download test data'
                  },
                  # If Configuration['system.online_registration'] is true, the
                  # system allows online registration, and will use these
                  # information for sending confirmation emails.
                  {
                    :key => 'system.online_registration.smtp',
                    :value_type => 'string',
                    :default_value => 'smtp.somehost.com'
                  },
                  {
                    :key => 'system.online_registration.from',
                    :value_type => 'string',
                    :default_value => 'your.email@address'
                  },
                  {
                    :key => 'system.admin_email',
                    :value_type => 'string',
                    :default_value => 'admin@admin.email'
                  },
                  {
                    :key => 'system.user_setting_enabled',
                    :value_type => 'boolean',
                    :default_value => 'true',
                    :description => 'If this option is true, users can change their settings'
                  },
                  {
                    :key => 'system.user_setting_enabled',
                    :value_type => 'boolean',
                    :default_value => 'true',
                    :description => 'If this option is true, users can change their settings'
                  },
                  # If Configuration['contest.test_request.early_timeout'] is true
                  # the user will not be able to use test request at 30 minutes
                  # before the contest ends.
                  {
                    :key => 'contest.test_request.early_timeout',
                    :value_type => 'boolean',
                    :default_value => 'false'
                  },
                  {
                    :key => 'system.multicontests',
                    :value_type => 'boolean',
                    :default_value => 'false'
                  },
                  {
                    :key => 'contest.confirm_indv_contest_start',
                    :value_type => 'boolean',
                    :default_value => 'false'
                  },
                  {
                    :key => 'contest.default_contest_name',
                    :value_type => 'string',
                    :default_value => 'none',
                    :description => "New user will be assigned to this contest automatically, if it exists.  Set to 'none' if there is no default contest."
-            -    }
+            +    },
+            +
+            +    {
+            +      :key => 'system.use_problem_group',
+            +      :value_type => 'boolean',
+            +      :default_value => 'false',
+            +      :description => "If true, available problem to the user will be only ones associated with the group of the user."
+            +    },
+            +
+            +
                 ]
               def create_configuration_key(key,
                                            value_type,
                                            default_value,
                                            description='')
                 conf = (GraderConfiguration.find_by_key(key) ||
                         GraderConfiguration.new(:key => key,
                                           :value_type => value_type,
                                           :value => default_value))
                 conf.description = description
                 conf.save
               end
               def seed_config
                 CONFIGURATIONS.each do |conf|
                   if conf.has_key? :description
                     desc = conf[:description]
                   else
                     desc = ''
                   end
                   create_configuration_key(conf[:key],
                                            conf[:value_type],
                                            conf[:default_value],
                                            desc)
                 end
               end
               def seed_roles
                 return if Role.find_by_name('admin')
                 role = Role.create(:name => 'admin')
                 user_admin_right = Right.create(:name => 'user_admin',
                                                 :controller => 'user_admin',
                                                 :action => 'all')
                 problem_admin_right = Right.create(:name=> 'problem_admin',
                                                    :controller => 'problems',
                                                    :action => 'all')
                 graders_right = Right.create(:name => 'graders_admin',
                                              :controller => 'graders',
                                              :action => 'all')
                 role.rights << user_admin_right;
                 role.rights << problem_admin_right;
                 role.rights << graders_right;
                 role.save
               end
               def seed_root
                 return if User.find_by_login('root')
                 root = User.new(:login => 'root',
                                 :full_name => 'Administrator',
                                 :alias => 'root')
                 root.password = 'ioionrails';
                 class << root
                   public :encrypt_new_password
                   def valid?(context=nil)
                     true
                   end
                 end
                 root.encrypt_new_password
                 root.roles << Role.find_by_name('admin')
                 root.activated = true
                 root.save
               end
               def seed_users_and_roles
                 seed_roles
                 seed_root
               end
               def seed_more_languages
                 Language.delete_all
                 Language.create( name: 'c', pretty_name: 'C', ext: 'c', common_ext: 'c' )
                 Language.create( name: 'cpp', pretty_name: 'C++', ext: 'cpp', common_ext: 'cpp,cc' )
                 Language.create( name: 'pas', pretty_name: 'Pascal', ext: 'pas', common_ext: 'pas' )
                 Language.create( name: 'ruby', pretty_name: 'Ruby', ext: 'rb', common_ext: 'rb' )
                 Language.create( name: 'python', pretty_name: 'Python', ext: 'py', common_ext: 'py' )
                 Language.create( name: 'java', pretty_name: 'Java', ext: 'java', common_ext: 'java' )
               end
               seed_config
               seed_users_and_roles
               seed_more_languages

lib/grader_script.rb ¶ +1

               module GraderScript
                 def self.grader_control_enabled?
                   if defined? GRADER_ROOT_DIR
                     GRADER_ROOT_DIR != ''
                   else
                     false
                   end
                 end
                 def self.raw_dir
                   File.join GRADER_ROOT_DIR, "raw"
                 end
                 def self.call_grader(params)
                   if GraderScript.grader_control_enabled?
                     cmd = File.join(GRADER_ROOT_DIR, "scripts/grader") + " " + params
                     system(cmd)
                   end
                 end
                 def self.stop_grader(pid)
                   GraderScript.call_grader "stop #{pid}"
                 end
                 def self.stop_graders(pids)
                   pid_str = (pids.map { |process| process.pid.to_s }).join ' '
                   GraderScript.call_grader "stop #{pid_str}"
                 end
                 def self.start_grader(env)
                   GraderScript.call_grader "#{env} queue --err-log &"
                   GraderScript.call_grader "#{env} test_request -err-log &"
                 end
+            +   #call the import problem script
                 def self.call_import_problem(problem_name,
                                              problem_dir,
                                              time_limit=1,
                                              memory_limit=32,
                                              checker_name='text')
                   if GraderScript.grader_control_enabled?
                     cur_dir = `pwd`.chomp
                     Dir.chdir(GRADER_ROOT_DIR)
                     script_name = File.join(GRADER_ROOT_DIR, "scripts/import_problem")
                     cmd = "#{script_name} #{problem_name} #{problem_dir} #{checker_name}" +
                       " -t #{time_limit} -m #{memory_limit}"
                     output = `#{cmd}`
                     Dir.chdir(cur_dir)
                     return "import CMD: #{cmd}\n" + output
                   end
                   return ''
                 end
                 def self.call_import_testcase(problem_name)
                   if GraderScript.grader_control_enabled?
                     cur_dir = `pwd`.chomp
                     Dir.chdir(GRADER_ROOT_DIR)
                     script_name = File.join(GRADER_ROOT_DIR, "scripts/load_testcase")
                     cmd = "#{script_name} #{problem_name}"
                     output = `#{cmd}`
                     Dir.chdir(cur_dir)
                     return "Testcase import result:\n" + output
                   end
                 end
               end

lib/testdata_importer.rb ¶ +2

               require 'tmpdir'
               class TestdataImporter
                 attr :log_msg
                 def initialize(problem)
                   @problem = problem
                 end
+            +   #Create or update problem according to the parameter
-                def import_from_file(tempfile,
-                                     time_limit,
                                      memory_limit,
                                      checker_name='text',
                                      import_to_db=false)
                   dirname = extract(tempfile)
                   return false if not dirname
                   if not import_to_db
                     @log_msg = GraderScript.call_import_problem(@problem.name,
                                                                 dirname,
                                                                 time_limit,
                                                                 memory_limit,
                                                                 checker_name)
                   else
                     # Import test data to test pairs.
                     @problem.test_pairs.clear
                     if import_test_pairs(dirname)
                       test_pair_count = TestPair.count :conditions => "problem_id = #{@problem.id}"
                       @log_msg = "Importing test pair successful. (#{test_pair_count} test pairs imported)"
                     else
                       @log_msg = "Importing test pair failed. (0 test pairs imported)"
                     end
                   end
                   @log_msg << import_problem_description(dirname)
                   @log_msg << import_problem_pdf(dirname)
                   @log_msg << import_full_score(dirname)
                   #import test data
                   @log_msg << GraderScript.call_import_testcase(@problem.name)
                   return true
                 end
                 protected
                 def self.long_ext(filename)
                   i = filename.index('.')
                   len = filename.length
                   return filename.slice(i..len)
                 end
+            +   # extract an archive file located at +tempfile+ to the +raw_dir+
                 def extract(tempfile)
                   testdata_filename = save_testdata_file(tempfile)
                   ext = TestdataImporter.long_ext(tempfile.original_filename)
                   extract_dir = File.join(GraderScript.raw_dir, @problem.name)
                   if File.exists? extract_dir
                     backup_count = 0
                     begin
                       backup_count += 1
                       backup_dirname = "#{extract_dir}.backup.#{backup_count}"
                     end while File.exists? backup_dirname
                     File.rename(extract_dir, backup_dirname)
                   end
                   Dir.mkdir extract_dir
                   if ext=='.tar.gz' or ext=='.tgz'
                     cmd = "tar -zxvf #{testdata_filename} -C #{extract_dir}"
                   elsif ext=='.tar'
                     cmd = "tar -xvf #{testdata_filename} -C #{extract_dir}"
                   elsif ext=='.zip'
                     cmd = "unzip -o #{testdata_filename} -d #{extract_dir}"
                   else
                     return nil
                   end
                   system(cmd)
                   files = Dir["#{extract_dir}/**/*1*.in"]
                   return nil if files.length==0
                   File.delete(testdata_filename)
                   return File.dirname(files[0])
                 end
                 def save_testdata_file(tempfile)
                   ext = TestdataImporter.long_ext(tempfile.original_filename)
                   testdata_filename = File.join(Dir.tmpdir,"#{@problem.name}#{ext}")
                   return nil if tempfile==""
                   if tempfile.instance_of?(Tempfile)
                     tempfile.close
                     FileUtils.move(tempfile.path,testdata_filename)
                   else
                     File.open(testdata_filename, "wb") do |f|
                       f.write(tempfile.read)
                     end
                   end
                   return testdata_filename
                 end
                 def import_test_pairs(dirname)
                   test_num = 1
                   while FileTest.exists? "#{dirname}/#{test_num}.in"
                     in_filename = "#{dirname}/#{test_num}.in"
                     sol_filename = "#{dirname}/#{test_num}.sol"
                     break if not FileTest.exists? sol_filename
                     test_pair = TestPair.new(:input => open(in_filename).read,
                                              :solution => open(sol_filename).read,
                                              :problem => @problem)
                     break if not test_pair.save
                     test_num += 1
                   end
                   return test_num > 1
                 end
                 def import_problem_description(dirname)
                   html_files = Dir["#{dirname}/*.html"]
                   markdown_files = Dir["#{dirname}/*.md"] + Dir["#{dirname}/*.markdown"]
                   if (html_files.length != 0) or (markdown_files.length != 0)
                     description = @problem.description || Description.new
                     if html_files.length != 0
                       filename = html_files[0]
                       description.markdowned = false
                     else
                       filename = markdown_files[0]
                       description.markdowned = true
                     end
                     description.body = open(filename).read
                     description.save
                     @problem.description = description
                     @problem.save
                     return "\nProblem description imported from #{filename}."
                   else
                     return ''
                   end
                 end
                 def import_problem_pdf(dirname)

app/views/contests/edit.html.erb removed ¶ -29

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app/views/contests/index.html.erb removed ¶ -29

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app/views/contests/new.html.erb removed ¶ -23

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app/views/contests/show.html.erb removed ¶ -14

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app/views/graders/submission.html.haml removed ¶ -87

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app/views/user_admin/_form.html.erb removed ¶ -25

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app/views/user_admin/new.html.erb removed ¶ -8

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app/views/user_admin/show.html.erb removed ¶ -10

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Commit r719:19bd5319581a public

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r719:19bd5319581a - Sat, 10 Mar 2018 07:31:57 - 95 files changed: 1214 inserted, 401 deleted

Commit `r719:19bd5319581a` public