cafe-grader-web Commit - r685:101d67319b73

app/controllers/groups_controller.rb created 644 ¶ +86

			@@ -0,0 +1,86
		1	+ class GroupsController < ApplicationController
		2	+ before_action :set_group, only: [:show, :edit, :update, :destroy,
		3	+ :add_user, :remove_user,
		4	+ :add_problem, :remove_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), notice: "User #{user.login} was removed from the group #{@group.name}"
		56	+ end
		57	+
		58	+ def add_user
		59	+ user = User.find(params[:user_id])
		60	+ @group.users << user
		61	+ redirect_to group_path(@group), notice: "User #{user.login} was add to the group #{@group.name}"
		62	+ end
		63	+
		64	+ def remove_problem
		65	+ problem = Problem.find(params[:problem_id])
		66	+ @group.problems.delete(problem)
		67	+ redirect_to group_path(@group), notice: "Problem #{problem.name} was removed from the group #{@group.name}"
		68	+ end
		69	+
		70	+ def add_problem
		71	+ problem = Problem.find(params[:problem_id])
		72	+ @group.problems << problem
		73	+ redirect_to group_path(@group), notice: "Problem #{problem.name} was add to the group #{@group.name}"
		74	+ end
		75	+
		76	+ private
		77	+ # Use callbacks to share common setup or constraints between actions.
		78	+ def set_group
		79	+ @group = Group.find(params[:id])
		80	+ end
		81	+
		82	+ # Only allow a trusted parameter "white list" through.
		83	+ def group_params
		84	+ params.require(:group).permit(:name, :description)
		85	+ end
		86	+ end

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

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

app/models/group.rb created 644 ¶ +5

			@@ -0,0 +1,5
		1	+ class Group < ActiveRecord::Base
		2	+ has_and_belongs_to_many :problems
		3	+ has_and_belongs_to_many :users
		4	+ end
		5	+

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 ¶ +72

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

app/views/user_admin/_form.html.haml created 644 ¶ +31

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

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'

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

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

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

                   @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

app/controllers/problems_controller.rb ¶ +5

                   @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])
+            +       get_problems_from_params.each do |p|
+            +         group.problems << p
+            +       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

app/controllers/user_admin_controller.rb ¶ +7

                 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
                   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.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])
+            +         @users.each { |user|  @group.users << user }
+            +       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])

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.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

app/models/problem.rb ¶ +1

               class Problem < ActiveRecord::Base
                 belongs_to :description
                 has_and_belongs_to_many :contests, :uniq => true
+            +   has_and_belongs_to_many :groups
                 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'

app/models/user.rb ¶ +14 -1

               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 :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
                       :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
                 def available_problems
                   if not GraderConfiguration.multicontests?
-            -       return Problem.available_problems
+            +       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
+            +     return problem.uniq
+            +   end
+            +
                 def can_view_problem?(problem)
                   if not GraderConfiguration.multicontests?
                     return problem.available
                   else
                     return problem_in_user_contests? problem
                   end
                 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')

app/views/layouts/_header.html.haml ¶ +1

                           = 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( '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'}})

app/views/problems/manage.html.haml ¶ +7 -2

                     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'
               = form_tag :action=>'do_manage' do
-            -   .submitbox
+            +   .submitbox.panel
                   What do you want to do to the selected problem?
                   %br/
                   (You can shift-click to select a range of problems)
                   %ul
                     %li
                       Change date added to
                       = select_date Date.current, :prefix => 'date_added'
                       &nbsp;&nbsp;&nbsp;
                       = submit_tag 'Change', :name => 'change_date_added'
                     %li
                       Set available to
                       = submit_tag 'True', :name => 'enable_problem'
                       = submit_tag 'False', :name => 'disable_problem'
                     - if GraderConfiguration.multicontests?
                       %li
                         Add to
                         = select("contest","id",Contest.all.collect {|c| [c.title, c.id]})
                         = submit_tag 'Add', :name => 'add_to_contest'
+            +       %li
+            +         Add problems to 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'
+            +
-            -   %table
+            +   %table.table.table-hover
                   %tr{style: "text-align: left;"}
                     %th= check_box_tag 'select_all'
                     %th Name
                     %th Full name
                     %th Available
                     %th Date added
                     - if GraderConfiguration.multicontests?
                       %th Contests
                   - 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.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 }])"

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

                           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

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'

config/routes.rb ¶ +8

                 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'
+            +       post 'add_problem', to: 'groups#add_problem', as: 'add_problem'
+            +       delete 'remove_problem/:problem_id', to: 'groups#remove_problem', as: 'remove_problem'
+            +     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'

db/migrate/011_add_language_ext.rb ¶ +1 -1

               class AddLanguageExt < ActiveRecord::Migration
                 def self.up
                   add_column :languages, :ext, :string, :limit => 10
                   Language.reset_column_information
-            -     langs = Language.find(:all)
+            +     langs = Language.all
                   langs.each do |l|
                     l.ext = l.name
                     l.save
                   end
                 end
                 def self.down
                   remove_column :languages, :ext
                 end
               end

db/migrate/015_add_status_to_tasks.rb ¶ +1 -1

               class AddStatusToTasks < ActiveRecord::Migration
                 def self.up
                   add_column :tasks, :status, :integer
                   add_column :tasks, :updated_at, :datetime
                   Task.reset_column_information
-            -     Task.find(:all).each do |task|
+            +     Task.all.each do |task|
                     task.status_complete
                     task.save
                   end
                 end
                 def self.down
                   remove_column :tasks, :updated_at
                   remove_column :tasks, :status
                 end
               end

db/migrate/018_add_number_to_submissions.rb ¶ +1 -2

               class AddNumberToSubmissions < ActiveRecord::Migration
                 def self.up
                   add_column :submissions, :number, :integer
                   # add number field for all records
                   Submission.reset_column_information
                   last_user_id = nil
                   last_problem_id = nil
                   current_number = 0
-            -     Submission.find(:all,
-            -                     :order => 'user_id, problem_id, submitted_at').each do |submission|
+            +     Submission.order('user_id, problem_id, submitted_at').each do |submission|
                     if submission.user_id==last_user_id and submission.problem_id==last_problem_id
                       current_number += 1
                     else
                       current_number = 1
                     end
                     submission.number = current_number
                     submission.save
                     last_user_id = submission.user_id
                     last_problem_id = submission.problem_id
                   end
                   add_index :submissions, [:user_id, :problem_id, :number], :unique => true
                 end
                 def self.down
                   remove_index :submissions, :column => [:user_id, :problem_id, :number]
                   remove_column :submissions, :number
                 end
               end

db/migrate/025_add_site_to_user_and_add_default_site.rb ¶ +1 -1

               class AddSiteToUserAndAddDefaultSite < ActiveRecord::Migration
                 def self.up
                   default_site = Site.new({:name => 'default',
                                             :started => false})
                   default_site.save!
                   add_column :users, :site_id, :integer
                   User.reset_column_information
-            -     User.find(:all).each do |user|
+            +     User.all.each do |user|
                     class << user
                       def valid?
                         true
                       end
                     end
                     user.site_id = default_site.id
                     user.save
                   end
                 end
                 def self.down
                   remove_column :users, :site_id
                   default_site = Site.find_by_name('default')
                   default_site.destroy if default_site
                 end
               end

db/migrate/028_refactor_problem_body_to_description.rb ¶ +2 -2

               class RefactorProblemBodyToDescription < ActiveRecord::Migration
                 def self.up
                   add_column :problems, :description_id, :integer
                   Problem.reset_column_information
-            -     Problem.find(:all).each do |problem|
+            +     Problem.all.each do |problem|
                     if problem.body!=nil
                       description = Description.new
                       description.body = problem.body
                       description.markdowned = false
                       description.save
                       problem.description_id = description.id
                       problem.save
                     end
                   end
                   remove_column :problems, :body
                 end
                 def self.down
                   add_column :problems, :body, :text
                   Problem.reset_column_information
-            -     Problem.find(:all).each do |problem|
+            +     Problem.all.each do |problem|
                     if problem.description_id != nil
                       problem.body = Description.find(problem.description_id).body
                       problem.save
                     end
                   end
                   remove_column :problems, :description_id
                 end
               end

db/migrate/029_add_test_allowed_to_problems.rb ¶ +1 -1

               class AddTestAllowedToProblems < ActiveRecord::Migration
                 def self.up
                   add_column :problems, :test_allowed, :boolean
                   Problem.reset_column_information
-            -     Problem.find(:all).each do |problem|
+            +     Problem.all.each do |problem|
                     problem.test_allowed = true
                     problem.save
                   end
                 end
                 def self.down
                   remove_column :problems, :test_allowed
                 end
               end

db/migrate/20081204122651_add_activated_to_users.rb ¶ +1 -1

               class AddActivatedToUsers < ActiveRecord::Migration
                 def self.up
                   add_column :users, :activated, :boolean, :default => 0
                   User.reset_column_information
-            -     User.find(:all).each do |user|
+            +     User.all.each do |user|
                     # disable validation
                     class <<user
                       def valid?
                         return true
                       end
                     end
                     user.activated = true
                     user.save
                   end
                 end
                 def self.down
                   remove_column :users, :activated
                 end
               end

db/migrate/20090416235658_add_common_ext_to_languages.rb ¶ +1 -1

               class AddCommonExtToLanguages < ActiveRecord::Migration
                 def self.up
                   # language.common_ext is a comma-separated list of common file
                   # extensions.
                   add_column :languages, :common_ext, :string
                   # updating table information
                   Language.reset_column_information
                   common_ext = {
                     'c' => 'c',
                     'cpp' => 'cpp,cc',
                     'pas' => 'pas'
                   }
-            -     Language.find(:all).each do |lang|
+            +     Language.all.each do |lang|
                     lang.common_ext = common_ext[lang.name]
                     lang.save
                   end
                 end
                 def self.down
                   remove_column :languages, :common_ext
                 end
               end

db/schema.rb ¶ +20 -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: 20170911091143) do
                 create_table "announcements", force: :cascade do |t|
                   t.string   "author",       limit: 255
                   t.text     "body",         limit: 16777215
                   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
                 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: 16777215
                 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

db/seeds.rb ¶ +10 -1

                  # 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],

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

deleted file

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

deleted file

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

deleted file

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

deleted file

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

deleted file

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

deleted file

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r685:101d67319b73 - Mon, 11 Sep 2017 15:59:08 - 43 files changed: 526 inserted, 160 deleted

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r685:101d67319b73 - Mon, 11 Sep 2017 15:59:08 - 43 files changed: 526 inserted, 160 deleted

Commit `r685:101d67319b73` public