cafe-grader-web Commit - r824:feb677289536

cafe-grader-web

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Description:

merge with rails7 branch

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[Not Reviewed]

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merge default

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r824:feb677289536 - Mon, 24 Jan 2022 11:10:22 - 129 files changed: 850 inserted, 594 deleted

app/assets/config/manifest.js created 644 ¶ +4

			@@ -0,0 +1,4
		1	+ //= link_tree ../images
		2	+ //= link_directory ../javascripts .js
		3	+ //= link_directory ../stylesheets .css
		4	+

bin/spring created 755 ¶ +14

			@@ -0,0 +1,14
		1	+ #!/usr/bin/env ruby
		2	+ if !defined?(Spring) && [nil, "development", "test"].include?(ENV["RAILS_ENV"])
		3	+ gem "bundler"
		4	+ require "bundler"
		5	+
		6	+ # Load Spring without loading other gems in the Gemfile, for speed.
		7	+ Bundler.locked_gems&.specs&.find { \|spec\| spec.name == "spring" }&.tap do \|spring\|
		8	+ Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path
		9	+ gem "spring", spring.version
		10	+ require "spring/binstub"
		11	+ rescue Gem::LoadError
		12	+ # Ignore when Spring is not installed.
		13	+ end
		14	+ end

config/initializers/new_framework_defaults_6_1.rb created 644 ¶ +67

			@@ -0,0 +1,67
		1	+ # Be sure to restart your server when you modify this file.
		2	+ #
		3	+ # This file contains migration options to ease your Rails 6.1 upgrade.
		4	+ #
		5	+ # Once upgraded flip defaults one by one to migrate to the new default.
		6	+ #
		7	+ # Read the Guide for Upgrading Ruby on Rails for more info on each option.
		8	+
		9	+ # Support for inversing belongs_to -> has_many Active Record associations.
		10	+ # Rails.application.config.active_record.has_many_inversing = true
		11	+
		12	+ # Track Active Storage variants in the database.
		13	+ # Rails.application.config.active_storage.track_variants = true
		14	+
		15	+ # Apply random variation to the delay when retrying failed jobs.
		16	+ # Rails.application.config.active_job.retry_jitter = 0.15
		17	+
		18	+ # Stop executing `after_enqueue`/`after_perform` callbacks if
		19	+ # `before_enqueue`/`before_perform` respectively halts with `throw :abort`.
		20	+ # Rails.application.config.active_job.skip_after_callbacks_if_terminated = true
		21	+
		22	+ # Specify cookies SameSite protection level: either :none, :lax, or :strict.
		23	+ #
		24	+ # This change is not backwards compatible with earlier Rails versions.
		25	+ # It's best enabled when your entire app is migrated and stable on 6.1.
		26	+ # Rails.application.config.action_dispatch.cookies_same_site_protection = :lax
		27	+
		28	+ # Generate CSRF tokens that are encoded in URL-safe Base64.
		29	+ #
		30	+ # This change is not backwards compatible with earlier Rails versions.
		31	+ # It's best enabled when your entire app is migrated and stable on 6.1.
		32	+ # Rails.application.config.action_controller.urlsafe_csrf_tokens = true
		33	+
		34	+ # Specify whether `ActiveSupport::TimeZone.utc_to_local` returns a time with an
		35	+ # UTC offset or a UTC time.
		36	+ # ActiveSupport.utc_to_local_returns_utc_offset_times = true
		37	+
		38	+ # Change the default HTTP status code to `308` when redirecting non-GET/HEAD
		39	+ # requests to HTTPS in `ActionDispatch::SSL` middleware.
		40	+ # Rails.application.config.action_dispatch.ssl_default_redirect_status = 308
		41	+
		42	+ # Use new connection handling API. For most applications this won't have any
		43	+ # effect. For applications using multiple databases, this new API provides
		44	+ # support for granular connection swapping.
		45	+ # Rails.application.config.active_record.legacy_connection_handling = false
		46	+
		47	+ # Make `form_with` generate non-remote forms by default.
		48	+ # Rails.application.config.action_view.form_with_generates_remote_forms = false
		49	+
		50	+ # Set the default queue name for the analysis job to the queue adapter default.
		51	+ # Rails.application.config.active_storage.queues.analysis = nil
		52	+
		53	+ # Set the default queue name for the purge job to the queue adapter default.
		54	+ # Rails.application.config.active_storage.queues.purge = nil
		55	+
		56	+ # Set the default queue name for the incineration job to the queue adapter default.
		57	+ # Rails.application.config.action_mailbox.queues.incineration = nil
		58	+
		59	+ # Set the default queue name for the routing job to the queue adapter default.
		60	+ # Rails.application.config.action_mailbox.queues.routing = nil
		61	+
		62	+ # Set the default queue name for the mail deliver job to the queue adapter default.
		63	+ # Rails.application.config.action_mailer.deliver_later_queue_name = nil
		64	+
		65	+ # Generate a `Link` header that gives a hint to modern browsers about
		66	+ # preloading assets when using `javascript_include_tag` and `stylesheet_link_tag`.
		67	+ # Rails.application.config.action_view.preload_links_header = true

config/initializers/new_framework_defaults_7_0.rb created 644 ¶ +117

			@@ -0,0 +1,117
		1	+ # Be sure to restart your server when you modify this file.
		2	+ #
		3	+ # This file eases your Rails 7.0 framework defaults upgrade.
		4	+ #
		5	+ # Uncomment each configuration one by one to switch to the new default.
		6	+ # Once your application is ready to run with all new defaults, you can remove
		7	+ # this file and set the `config.load_defaults` to `7.0`.
		8	+ #
		9	+ # Read the Guide for Upgrading Ruby on Rails for more info on each option.
		10	+ # https://guides.rubyonrails.org/upgrading_ruby_on_rails.html
		11	+
		12	+ # `button_to` view helper will render `<button>` element, regardless of whether
		13	+ # or not the content is passed as the first argument or as a block.
		14	+ # Rails.application.config.action_view.button_to_generates_button_tag = true
		15	+
		16	+ # `stylesheet_link_tag` view helper will not render the media attribute by default.
		17	+ # Rails.application.config.action_view.apply_stylesheet_media_default = false
		18	+
		19	+ # Change the digest class for the key generators to `OpenSSL::Digest::SHA256`.
		20	+ # Changing this default means invalidate all encrypted messages generated by
		21	+ # your application and, all the encrypted cookies. Only change this after you
		22	+ # rotated all the messages using the key rotator.
		23	+ #
		24	+ # See upgrading guide for more information on how to build a rotator.
		25	+ # https://guides.rubyonrails.org/v7.0/upgrading_ruby_on_rails.html
		26	+ # Rails.application.config.active_support.key_generator_hash_digest_class = OpenSSL::Digest::SHA256
		27	+
		28	+ # Change the digest class for ActiveSupport::Digest.
		29	+ # Changing this default means that for example Etags change and
		30	+ # various cache keys leading to cache invalidation.
		31	+ # Rails.application.config.active_support.hash_digest_class = OpenSSL::Digest::SHA256
		32	+
		33	+ # Don't override ActiveSupport::TimeWithZone.name and use the default Ruby
		34	+ # implementation.
		35	+ # Rails.application.config.active_support.remove_deprecated_time_with_zone_name = true
		36	+
		37	+ # Change the format of the cache entry.
		38	+ # Changing this default means that all new cache entries added to the cache
		39	+ # will have a different format that is not supported by Rails 6.1 applications.
		40	+ # Only change this value after your application is fully deployed to Rails 7.0
		41	+ # and you have no plans to rollback.
		42	+ # Rails.application.config.active_support.cache_format_version = 7.0
		43	+
		44	+ # Calls `Rails.application.executor.wrap` around test cases.
		45	+ # This makes test cases behave closer to an actual request or job.
		46	+ # Several features that are normally disabled in test, such as Active Record query cache
		47	+ # and asynchronous queries will then be enabled.
		48	+ # Rails.application.config.active_support.executor_around_test_case = true
		49	+
		50	+ # Define the isolation level of most of Rails internal state.
		51	+ # If you use a fiber based server or job processor, you should set it to `:fiber`.
		52	+ # Otherwise the default of `:thread` if preferable.
		53	+ # Rails.application.config.active_support.isolation_level = :thread
		54	+
		55	+ # Set both the `:open_timeout` and `:read_timeout` values for `:smtp` delivery method.
		56	+ # Rails.application.config.action_mailer.smtp_timeout = 5
		57	+
		58	+ # The ActiveStorage video previewer will now use scene change detection to generate
		59	+ # better preview images (rather than the previous default of using the first frame
		60	+ # of the video).
		61	+ # Rails.application.config.active_storage.video_preview_arguments =
		62	+ # "-vf 'select=eq(n\\,0)+eq(key\\,1)+gt(scene\\,0.015),loop=loop=-1:size=2,trim=start_frame=1' -frames:v 1 -f image2"
		63	+
		64	+ # Automatically infer `inverse_of` for associations with a scope.
		65	+ # Rails.application.config.active_record.automatic_scope_inversing = true
		66	+
		67	+ # Raise when running tests if fixtures contained foreign key violations
		68	+ # Rails.application.config.active_record.verify_foreign_keys_for_fixtures = true
		69	+
		70	+ # Disable partial inserts.
		71	+ # This default means that all columns will be referenced in INSERT queries
		72	+ # regardless of whether they have a default or not.
		73	+ # Rails.application.config.active_record.partial_inserts = false
		74	+ #
		75	+ # Protect from open redirect attacks in `redirect_back_or_to` and `redirect_to`.
		76	+ # Rails.application.config.action_controller.raise_on_open_redirects = true
		77	+
		78	+ # Change the variant processor for Active Storage.
		79	+ # Changing this default means updating all places in your code that
		80	+ # generate variants to use image processing macros and ruby-vips
		81	+ # operations. See the upgrading guide for detail on the changes required.
		82	+ # The `:mini_magick` option is not deprecated; it's fine to keep using it.
		83	+ # Rails.application.config.active_storage.variant_processor = :vips
		84	+
		85	+ # If you're upgrading and haven't set `cookies_serializer` previously, your cookie serializer
		86	+ # was `:marshal`. Convert all cookies to JSON, using the `:hybrid` formatter.
		87	+ #
		88	+ # If you're confident all your cookies are JSON formatted, you can switch to the `:json` formatter.
		89	+ #
		90	+ # Continue to use `:marshal` for backward-compatibility with old cookies.
		91	+ #
		92	+ # If you have configured the serializer elsewhere, you can remove this.
		93	+ #
		94	+ # See https://guides.rubyonrails.org/action_controller_overview.html#cookies for more information.
		95	+ # Rails.application.config.action_dispatch.cookies_serializer = :hybrid
		96	+
		97	+ # Enable parameter wrapping for JSON.
		98	+ # Previously this was set in an initializer. It's fine to keep using that initializer if you've customized it.
		99	+ # To disable parameter wrapping entirely, set this config to `false`.
		100	+ # Rails.application.config.action_controller.wrap_parameters_by_default = true
		101	+
		102	+ # Specifies whether generated namespaced UUIDs follow the RFC 4122 standard for namespace IDs provided as a
		103	+ # `String` to `Digest::UUID.uuid_v3` or `Digest::UUID.uuid_v5` method calls.
		104	+ #
		105	+ # See https://guides.rubyonrails.org/configuring.html#config-active-support-use-rfc4122-namespaced-uuids for
		106	+ # more information.
		107	+ # Rails.application.config.active_support.use_rfc4122_namespaced_uuids = true
		108	+
		109	+ # Change the default headers to disable browsers' flawed legacy XSS protection.
		110	+ # Rails.application.config.action_dispatch.default_headers = {
		111	+ # "X-Frame-Options" => "SAMEORIGIN",
		112	+ # "X-XSS-Protection" => "0",
		113	+ # "X-Content-Type-Options" => "nosniff",
		114	+ # "X-Download-Options" => "noopen",
		115	+ # "X-Permitted-Cross-Domain-Policies" => "none",
		116	+ # "Referrer-Policy" => "strict-origin-when-cross-origin"
		117	+ # }

config/initializers/permissions_policy.rb created 644 ¶ +11

			@@ -0,0 +1,11
		1	+ # Define an application-wide HTTP permissions policy. For further
		2	+ # information see https://developers.google.com/web/updates/2018/06/feature-policy
		3	+ #
		4	+ # Rails.application.config.permissions_policy do \|f\|
		5	+ # f.camera :none
		6	+ # f.gyroscope :none
		7	+ # f.microphone :none
		8	+ # f.usb :none
		9	+ # f.fullscreen :self
		10	+ # f.payment :self, "https://secure.example.com"
		11	+ # end

script/score_subtask.rb created 644 ¶ +89

			@@ -0,0 +1,89
		1	+ def display_manual
		2	+ puts <<-USAGE
		3	+ subtask_score problem last_submision_id sub1_score,sub2_score,sub3_score,....
		4	+ example:
		5	+ rails runner subtask_score.rb o64_may26_train 102983 10,15,18,18,39
		6	+ USAGE
		7	+ end
		8	+
		9	+ def process_options
		10	+ res = {}
		11	+ if ARGV.length == 0
		12	+ display_manual
		13	+ exit(1)
		14	+ end
		15	+
		16	+ res[:prob] = ARGV[0]
		17	+ res[:last_sub_id] = ARGV[1].to_i
		18	+ res[:score] = ARGV[2].split(',').map {\|x\| x.to_i}
		19	+ return res
		20	+ end
		21	+
		22	+ def process_subtask(st)
		23	+ return true if /^P+$/.match(st)
		24	+ return false
		25	+ end
		26	+
		27	+ def process_comment(st)
		28	+ res = []
		29	+ loop do
		30	+ break if st.length == 0
		31	+ if st[0] == '['
		32	+ #subtask
		33	+ subtask = st.slice!(0..(st.index(']')))
		34	+ res << process_subtask(subtask[1..-2])
		35	+ else #not subtask
		36	+ res << process_subtask(st[0])
		37	+ st.slice!(0)
		38	+ end
		39	+ end
		40	+ return res
		41	+ end
		42	+
		43	+ options = process_options
		44	+ scoring = options[:score]
		45	+ puts "doing problem #{options[:prob]}"
		46	+ puts " consider only submission with id not more than #{options[:last_sub_id]}"
		47	+ scoring.each.with_index { \|x,i\| puts " subtask#{i}: #{x}" }
		48	+
		49	+ res = {}
		50	+
		51	+ p = Problem.where(name: options[:prob]).first
		52	+ unless p
		53	+ puts "Problem #{options[:prob]} not found"
		54	+ exit(2)
		55	+ end
		56	+
		57	+ p.submissions.where('id <= ?',options[:last_sub_id]).order(:id).each do \|sub\|
		58	+ unless sub.graded_at
		59	+ puts "skip ungraded submission #{sub.id}"
		60	+ next
		61	+ end
		62	+ if sub.grader_comment == "compilation error"
		63	+ puts "skip uncompilable submission #{sub.id}"
		64	+ next
		65	+ end
		66	+
		67	+ comment = sub.grader_comment.clone
		68	+ comment_result = process_comment(comment)
		69	+ if comment_result.length != scoring.length
		70	+ puts "ERROR!!! subtask of submission #{sub.id} does not match scoring input"
		71	+ end
		72	+
		73	+ puts "processing submission #{sub.id} with comment = #{sub.grader_comment} result is #{comment_result}"
		74	+ current = res[sub.user.login] \|\| [false] * scoring.length
		75	+ current.each.with_index do \|x,i\|
		76	+ if !x && comment_result[i]
		77	+ puts " user #{sub.user.login} just got subtask #{i+1} from this submission"
		78	+ current[i] = true
		79	+ end
		80	+ end
		81	+ res[sub.user.login] = current
		82	+ end
		83	+
		84	+ puts "----summary-----"
		85	+ res.each do \|u,r\|
		86	+ score = scoring.clone
		87	+ r.each.with_index { \|pass,i\| score[i] = 0 unless pass }
		88	+ puts "#{u} #{score.sum} [#{score.join(',')}]"
		89	+ end

.ruby-version ¶ +1 -1

		@@ -1,1 +1,1
1		- ruby-~~2.6.3~~
	1	+ ruby-3.1.0

Gemfile ¶ +16 -9

               source 'https://rubygems.org'
               git_source(:github) { |repo| "https://github.com/#{repo}.git" }
+            + ruby '3.1.0'
+            +
               #rails
-            - gem 'rails', '~>5.2'
+            + gem 'rails', '~>7.0'
+            +
+            + # The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
+            + gem "sprockets-rails"
+            +
               gem 'activerecord-session_store'
               gem 'puma'
               # Reduces boot times through caching; required in config/boot.rb
-            - gem 'bootsnap', '>= 1.1.0', require: false
+            + gem 'bootsnap', require: false
               # Bundle edge Rails instead:
               # gem 'rails', :git => 'git://github.com/rails/rails.git'
               #---------------- database ---------------------
               #the database
               gem 'mysql2'
               #for testing
               gem 'sqlite3'
               gem 'rails-controller-testing'
               #for dumping database into yaml
               gem 'yaml_db'
                 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
                 # gem 'therubyracer', :platforms => :ruby
               gem 'uglifier'
               gem 'haml'
               gem 'haml-rails'
               # Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
               #gem 'turbolinks', '~> 5'
               # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
-            - gem 'jbuilder', '~> 2.5'
+            + gem 'jbuilder'
               #in-place editor
-            - gem 'best_in_place', '~> 3.0.1'
+            + gem 'best_in_place', git: "https://github.com/mmotherwell/best_in_place"
               # 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'
               #bootstrap add-ons
               #gem 'verification', :git => 'https://github.com/sikachu/verification.git'
               #---------------- testiing -----------------------
               gem 'minitest-reporters'
               #---------------- for console --------------------
               gem 'fuzzy-string-match'
               group :development, :test do
                 # Call 'byebug' anywhere in the code to stop execution and get a debugger console
-            -   gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
+            +   gem 'debug', platforms: [:mri, :mingw, :x64_mingw]
               end
               group :development do
                 # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
                 gem 'web-console', '>= 3.3.0'
                 gem 'listen', '>= 3.0.5', '< 3.2'
                 # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
                 gem 'spring'
                 gem 'spring-watcher-listen', '~> 2.0.0'
+            +
+            +   # Add speed badges [https://github.com/MiniProfiler/rack-mini-profiler]
+            +   # gem "rack-mini-profiler"
               end
               group :test do
                 # Adds support for Capybara system testing and selenium driver
-            -   gem 'capybara', '>= 2.15'
+            +   gem 'capybara'
                 gem 'selenium-webdriver'
-            -   # Easy installation and use of chromedriver to run system tests with Chrome
-            -   #gem 'chromedriver-helper'
-            -   gem 'webdriver'
+            +   gem 'webdrivers'
               end

Gemfile.lock ¶ +225 -163

+            + GIT
+            +   remote: https://github.com/mmotherwell/best_in_place
+            +   revision: 88eb3052623a9a6cd346864d2aca05021c2f80d0
+            +   specs:
+            +     best_in_place (3.1.1)
+            +       actionpack (>= 3.2)
+            +       railties (>= 3.2)
+            +
               GEM
                 remote: https://rubygems.org/
                 specs:
-            -     RubyInline (3.12.4)
+            +     RubyInline (3.12.5)
                     ZenTest (~> 4.3)
-            -     ZenTest (4.11.2)
-            -     ace-rails-ap (4.2)
-            -     actioncable (5.2.4.2)
-            -       actionpack (= 5.2.4.2)
+            +     ZenTest (4.12.0)
+            +     ace-rails-ap (4.4)
+            +     actioncable (7.0.1)
+            +       actionpack (= 7.0.1)
+            +       activesupport (= 7.0.1)
                     nio4r (~> 2.0)
                     websocket-driver (>= 0.6.1)
-            -     actionmailer (5.2.4.2)
-            -       actionpack (= 5.2.4.2)
-            -       actionview (= 5.2.4.2)
-            -       activejob (= 5.2.4.2)
+            +     actionmailbox (7.0.1)
+            +       actionpack (= 7.0.1)
+            +       activejob (= 7.0.1)
+            +       activerecord (= 7.0.1)
+            +       activestorage (= 7.0.1)
+            +       activesupport (= 7.0.1)
+            +       mail (>= 2.7.1)
+            +       net-imap
+            +       net-pop
+            +       net-smtp
+            +     actionmailer (7.0.1)
+            +       actionpack (= 7.0.1)
+            +       actionview (= 7.0.1)
+            +       activejob (= 7.0.1)
+            +       activesupport (= 7.0.1)
                     mail (~> 2.5, >= 2.5.4)
+            +       net-imap
+            +       net-pop
+            +       net-smtp
                     rails-dom-testing (~> 2.0)
-            -     actionpack (5.2.4.2)
-            -       actionview (= 5.2.4.2)
-            -       activesupport (= 5.2.4.2)
-            -       rack (~> 2.0, >= 2.0.8)
+            +     actionpack (7.0.1)
+            +       actionview (= 7.0.1)
+            +       activesupport (= 7.0.1)
+            +       rack (~> 2.0, >= 2.2.0)
                     rack-test (>= 0.6.3)
                     rails-dom-testing (~> 2.0)
-            -       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-            -     actionview (5.2.4.2)
-            -       activesupport (= 5.2.4.2)
+            +       rails-html-sanitizer (~> 1.0, >= 1.2.0)
+            +     actiontext (7.0.1)
+            +       actionpack (= 7.0.1)
+            +       activerecord (= 7.0.1)
+            +       activestorage (= 7.0.1)
+            +       activesupport (= 7.0.1)
+            +       globalid (>= 0.6.0)
+            +       nokogiri (>= 1.8.5)
+            +     actionview (7.0.1)
+            +       activesupport (= 7.0.1)
                     builder (~> 3.1)
                     erubi (~> 1.4)
                     rails-dom-testing (~> 2.0)
-            -       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-            -     activejob (5.2.4.2)
-            -       activesupport (= 5.2.4.2)
+            +       rails-html-sanitizer (~> 1.1, >= 1.2.0)
+            +     activejob (7.0.1)
+            +       activesupport (= 7.0.1)
                     globalid (>= 0.3.6)
-            -     activemodel (5.2.4.2)
-            -       activesupport (= 5.2.4.2)
-            -     activerecord (5.2.4.2)
-            -       activemodel (= 5.2.4.2)
-            -       activesupport (= 5.2.4.2)
-            -       arel (>= 9.0)
-            -     activerecord-session_store (1.1.3)
-            -       actionpack (>= 4.0)
-            -       activerecord (>= 4.0)
+            +     activemodel (7.0.1)
+            +       activesupport (= 7.0.1)
+            +     activerecord (7.0.1)
+            +       activemodel (= 7.0.1)
+            +       activesupport (= 7.0.1)
+            +     activerecord-session_store (2.0.0)
+            +       actionpack (>= 5.2.4.1)
+            +       activerecord (>= 5.2.4.1)
                     multi_json (~> 1.11, >= 1.11.2)
-            -       rack (>= 1.5.2, < 3)
-            -       railties (>= 4.0)
-            -     activestorage (5.2.4.2)
-            -       actionpack (= 5.2.4.2)
-            -       activerecord (= 5.2.4.2)
-            -       marcel (~> 0.3.1)
-            -     activesupport (5.2.4.2)
+            +       rack (>= 2.0.8, < 3)
+            +       railties (>= 5.2.4.1)
+            +     activestorage (7.0.1)
+            +       actionpack (= 7.0.1)
+            +       activejob (= 7.0.1)
+            +       activerecord (= 7.0.1)
+            +       activesupport (= 7.0.1)
+            +       marcel (~> 1.0)
+            +       mini_mime (>= 1.1.0)
+            +     activesupport (7.0.1)
                     concurrent-ruby (~> 1.0, >= 1.0.2)
-            -       i18n (>= 0.7, < 2)
-            -       minitest (~> 5.1)
-            -       tzinfo (~> 1.1)
-            -     addressable (2.7.0)
+            +       i18n (>= 1.6, < 2)
+            +       minitest (>= 5.1)
+            +       tzinfo (~> 2.0)
+            +     addressable (2.8.0)
                     public_suffix (>= 2.0.2, < 5.0)
                   ansi (1.5.0)
-            -     arel (9.0.0)
-            -     autoprefixer-rails (9.5.1)
-            -       execjs
-            -     best_in_place (3.0.3)
-            -       actionpack (>= 3.2)
-            -       railties (>= 3.2)
+            +     autoprefixer-rails (10.4.2.0)
+            +       execjs (~> 2)
                   bindex (0.8.1)
-            -     bootsnap (1.4.6)
+            +     bootsnap (1.9.4)
                     msgpack (~> 1.0)
                   bootstrap-sass (3.4.1)
                     autoprefixer-rails (>= 5.2.1)
                     sassc (>= 2.0.0)
-            -     bootstrap-switch-rails (3.3.4)
+            +     bootstrap-switch-rails (3.3.5)
                   bootstrap-toggle-rails (2.2.1.0)
                   bootstrap3-datetimepicker-rails (4.17.47)
                     momentjs-rails (>= 2.8.1)
                   builder (3.2.4)
-            -     byebug (11.0.1)
-            -     capybara (3.15.1)
+            +     capybara (3.36.0)
                     addressable
+            +       matrix
                     mini_mime (>= 0.1.3)
                     nokogiri (~> 1.8)
                     rack (>= 1.6.0)
                     rack-test (>= 0.6.3)
-            -       regexp_parser (~> 1.2)
+            +       regexp_parser (>= 1.5, < 3.0)
                     xpath (~> 3.2)
-            -     childprocess (3.0.0)
-            -     coffee-rails (4.2.2)
+            +     childprocess (4.1.0)
+            +     coffee-rails (5.0.0)
                     coffee-script (>= 2.2.0)
-            -       railties (>= 4.0.0)
+            +       railties (>= 5.2.0)
                   coffee-script (2.4.1)
                     coffee-script-source
                     execjs
                   coffee-script-source (1.12.2)
-            -     concurrent-ruby (1.1.6)
+            +     concurrent-ruby (1.1.9)
                   crass (1.0.6)
+            +     debug (1.4.0)
+            +       irb (>= 1.3.6)
+            +       reline (>= 0.2.7)
+            +     digest (3.1.0)
                   dynamic_form (1.1.4)
-            -     erubi (1.9.0)
+            +     erubi (1.10.0)
                   erubis (2.7.0)
-            -     execjs (2.7.0)
-            -     ffi (1.10.0)
+            +     execjs (2.8.1)
+            +     ffi (1.15.5)
                   fuzzy-string-match (1.0.1)
                     RubyInline (>= 3.8.6)
-            -     globalid (0.4.2)
-            -       activesupport (>= 4.2.0)
-            -     haml (5.0.4)
+            +     globalid (1.0.0)
+            +       activesupport (>= 5.0)
+            +     haml (5.2.2)
                     temple (>= 0.8.0)
                     tilt
-            -     haml-rails (1.0.0)
-            -       actionpack (>= 4.0.1)
-            -       activesupport (>= 4.0.1)
+            +     haml-rails (2.0.1)
+            +       actionpack (>= 5.1)
+            +       activesupport (>= 5.1)
                     haml (>= 4.0.6, < 6.0)
                     html2haml (>= 1.0.1)
-            -       railties (>= 4.0.1)
+            +       railties (>= 5.1)
                   html2haml (2.2.0)
                     erubis (~> 2.7.0)
                     haml (>= 4.0, < 6)
                     nokogiri (>= 1.6.0)
                     ruby_parser (~> 3.5)
-            -     i18n (1.8.2)
+            +     i18n (1.8.11)
                     concurrent-ruby (~> 1.0)
                   in_place_editing (1.2.0)
-            -     jbuilder (2.10.0)
+            +     io-console (0.5.11)
+            +     io-wait (0.2.1)
+            +     irb (1.4.1)
+            +       reline (>= 0.3.0)
+            +     jbuilder (2.11.5)
+            +       actionview (>= 5.0.0)
                     activesupport (>= 5.0.0)
                   jquery-countdown-rails (2.0.2)
-            -     jquery-rails (4.3.3)
+            +     jquery-rails (4.4.0)
                     rails-dom-testing (>= 1, < 3)
                     railties (>= 4.2.0)
                     thor (>= 0.14, < 2.0)
-            -     jquery-tablesorter (1.26.1)
-            -       railties (>= 3.2, < 6)
+            +     jquery-tablesorter (1.27.2)
+            +       railties (>= 3.2)
                   jquery-ui-rails (6.0.1)
                     railties (>= 3.2.16)
-            -     listen (3.1.5)
+            +     listen (3.0.8)
                     rb-fsevent (~> 0.9, >= 0.9.4)
                     rb-inotify (~> 0.9, >= 0.9.7)
-            -       ruby_dep (~> 1.2)
-            -     loofah (2.4.0)
+            +     loofah (2.13.0)
                     crass (~> 1.0.2)
                     nokogiri (>= 1.5.9)
                   mail (2.7.1)
                     mini_mime (>= 0.1.1)
-            -     marcel (0.3.3)
-            -       mimemagic (~> 0.3.2)
+            +     marcel (1.0.2)
+            +     matrix (0.4.2)
                   method_source (1.0.0)
-            -     mimemagic (0.3.4)
-            -     mini_mime (1.0.2)
-            -     mini_portile2 (2.4.0)
-            -     minitest (5.14.0)
-            -     minitest-reporters (1.3.6)
+            +     mini_mime (1.1.2)
+            +     minitest (5.15.0)
+            +     minitest-reporters (1.5.0)
                     ansi
                     builder
                     minitest (>= 5.0)
                     ruby-progressbar
-            -     momentjs-rails (2.20.1)
+            +     momentjs-rails (2.29.1.1)
                     railties (>= 3.1)
-            -     msgpack (1.3.3)
-            -     multi_json (1.13.1)
-            -     mysql2 (0.5.2)
-            -     nio4r (2.5.2)
-            -     nokogiri (1.10.9)
-            -       mini_portile2 (~> 2.4.0)
-            -     public_suffix (4.0.3)
-            -     puma (4.3.3)
+            +     msgpack (1.4.2)
+            +     multi_json (1.15.0)
+            +     mysql2 (0.5.3)
+            +     net-imap (0.2.3)
+            +       digest
+            +       net-protocol
+            +       strscan
+            +     net-pop (0.1.1)
+            +       digest
+            +       net-protocol
+            +       timeout
+            +     net-protocol (0.1.2)
+            +       io-wait
+            +       timeout
+            +     net-smtp (0.3.1)
+            +       digest
+            +       net-protocol
+            +       timeout
+            +     nio4r (2.5.8)
+            +     nokogiri (1.13.1-x86_64-linux)
+            +       racc (~> 1.4)
+            +     public_suffix (4.0.6)
+            +     puma (5.5.2)
                     nio4r (~> 2.0)
-            -     rack (2.2.2)
+            +     racc (1.6.0)
+            +     rack (2.2.3)
                   rack-test (1.1.0)
                     rack (>= 1.0, < 3)
-            -     rails (5.2.4.2)
-            -       actioncable (= 5.2.4.2)
-            -       actionmailer (= 5.2.4.2)
-            -       actionpack (= 5.2.4.2)
-            -       actionview (= 5.2.4.2)
-            -       activejob (= 5.2.4.2)
-            -       activemodel (= 5.2.4.2)
-            -       activerecord (= 5.2.4.2)
-            -       activestorage (= 5.2.4.2)
-            -       activesupport (= 5.2.4.2)
-            -       bundler (>= 1.3.0)
-            -       railties (= 5.2.4.2)
-            -       sprockets-rails (>= 2.0.0)
-            -     rails-controller-testing (1.0.4)
-            -       actionpack (>= 5.0.1.x)
-            -       actionview (>= 5.0.1.x)
-            -       activesupport (>= 5.0.1.x)
+            +     rails (7.0.1)
+            +       actioncable (= 7.0.1)
+            +       actionmailbox (= 7.0.1)
+            +       actionmailer (= 7.0.1)
+            +       actionpack (= 7.0.1)
+            +       actiontext (= 7.0.1)
+            +       actionview (= 7.0.1)
+            +       activejob (= 7.0.1)
+            +       activemodel (= 7.0.1)
+            +       activerecord (= 7.0.1)
+            +       activestorage (= 7.0.1)
+            +       activesupport (= 7.0.1)
+            +       bundler (>= 1.15.0)
+            +       railties (= 7.0.1)
+            +     rails-controller-testing (1.0.5)
+            +       actionpack (>= 5.0.1.rc1)
+            +       actionview (>= 5.0.1.rc1)
+            +       activesupport (>= 5.0.1.rc1)
                   rails-dom-testing (2.0.3)
                     activesupport (>= 4.2.0)
                     nokogiri (>= 1.6)
-            -     rails-html-sanitizer (1.3.0)
+            +     rails-html-sanitizer (1.4.2)
                     loofah (~> 2.3)
-            -     rails_bootstrap_sortable (2.0.6)
+            +     rails_bootstrap_sortable (2.0.7)
                     momentjs-rails (>= 2.8.3)
-            -     railties (5.2.4.2)
-            -       actionpack (= 5.2.4.2)
-            -       activesupport (= 5.2.4.2)
+            +     railties (7.0.1)
+            +       actionpack (= 7.0.1)
+            +       activesupport (= 7.0.1)
                     method_source
-            -       rake (>= 0.8.7)
-            -       thor (>= 0.19.0, < 2.0)
-            -     rake (13.0.1)
-            -     rb-fsevent (0.10.3)
-            -     rb-inotify (0.10.0)
+            +       rake (>= 12.2)
+            +       thor (~> 1.0)
+            +       zeitwerk (~> 2.5)
+            +     rake (13.0.6)
+            +     rb-fsevent (0.11.0)
+            +     rb-inotify (0.10.1)
                     ffi (~> 1.0)
-            -     rdiscount (2.2.0.1)
-            -     regexp_parser (1.7.0)
-            -     rouge (3.3.0)
-            -     ruby-progressbar (1.10.0)
-            -     ruby_dep (1.5.0)
-            -     ruby_parser (3.13.1)
-            -       sexp_processor (~> 4.9)
-            -     rubyzip (1.3.0)
-            -     sassc (2.2.1)
+            +     rdiscount (2.2.0.2)
+            +     regexp_parser (2.2.0)
+            +     reline (0.3.1)
+            +       io-console (~> 0.5)
+            +     rexml (3.2.5)
+            +     rouge (3.27.0)
+            +     ruby-progressbar (1.11.0)
+            +     ruby_parser (3.18.1)
+            +       sexp_processor (~> 4.16)
+            +     rubyzip (2.3.2)
+            +     sassc (2.4.0)
                     ffi (~> 1.9)
                   sassc-rails (2.1.2)
                     railties (>= 4.0.0)
                     sassc (>= 2.0)
                     sprockets (> 3.0)
                     sprockets-rails
                     tilt
-            -     select2-rails (4.0.3)
-            -       thor (~> 0.14)
-            -     selenium-webdriver (3.142.7)
-            -       childprocess (>= 0.5, < 4.0)
+            +     select2-rails (4.0.13)
+            +     selenium-webdriver (4.1.0)
+            +       childprocess (>= 0.5, < 5.0)
+            +       rexml (~> 3.2, >= 3.2.5)
                     rubyzip (>= 1.2.2)
-            -     sexp_processor (4.12.0)
-            -     simple_form (5.0.2)
-            -       actionpack (>= 5.0)
-            -       activemodel (>= 5.0)
-            -     spring (2.0.2)
-            -       activesupport (>= 4.2)
+            +     sexp_processor (4.16.0)
+            +     simple_form (5.1.0)
+            +       actionpack (>= 5.2)
+            +       activemodel (>= 5.2)
+            +     spring (2.1.1)
                   spring-watcher-listen (2.0.1)
                     listen (>= 2.7, < 4.0)
                     spring (>= 1.2, < 3.0)
-            -     sprockets (3.7.2)
+            +     sprockets (4.0.2)
                     concurrent-ruby (~> 1.0)
                     rack (> 1, < 3)
-            -     sprockets-rails (3.2.1)
-            -       actionpack (>= 4.0)
-            -       activesupport (>= 4.0)
+            +     sprockets-rails (3.4.2)
+            +       actionpack (>= 5.2)
+            +       activesupport (>= 5.2)
                     sprockets (>= 3.0.0)
-            -     sqlite3 (1.4.1)
-            -     temple (0.8.1)
-            -     thor (0.20.3)
-            -     thread_safe (0.3.6)
-            -     tilt (2.0.9)
-            -     tzinfo (1.2.7)
-            -       thread_safe (~> 0.1)
-            -     uglifier (4.1.20)
+            +     sqlite3 (1.4.2)
+            +     strscan (3.0.1)
+            +     temple (0.8.2)
+            +     thor (1.2.1)
+            +     tilt (2.0.10)
+            +     timeout (0.2.0)
+            +     tzinfo (2.0.4)
+            +       concurrent-ruby (~> 1.0)
+            +     uglifier (4.2.0)
                     execjs (>= 0.3.0, < 3)
-            -     web-console (3.7.0)
-            -       actionview (>= 5.0)
-            -       activemodel (>= 5.0)
+            +     web-console (4.2.0)
+            +       actionview (>= 6.0.0)
+            +       activemodel (>= 6.0.0)
                     bindex (>= 0.4.0)
-            -       railties (>= 5.0)
-            -     webdriver (0.5.0)
-            -     websocket-driver (0.7.1)
+            +       railties (>= 6.0.0)
+            +     webdrivers (5.0.0)
+            +       nokogiri (~> 1.6)
+            +       rubyzip (>= 1.3.0)
+            +       selenium-webdriver (~> 4.0)
+            +     websocket-driver (0.7.5)
                     websocket-extensions (>= 0.1.0)
-            -     websocket-extensions (0.1.4)
+            +     websocket-extensions (0.1.5)
                   xpath (3.2.0)
                     nokogiri (~> 1.8)
                   yaml_db (0.7.0)
                     rails (>= 3.0)
                     rake (>= 0.8.7)
+            +     zeitwerk (2.5.3)
               PLATFORMS
-            -   ruby
+            +   x86_64-linux
               DEPENDENCIES
                 ace-rails-ap
                 activerecord-session_store
                 autoprefixer-rails
-            -   best_in_place (~> 3.0.1)
-            -   bootsnap (>= 1.1.0)
+            +   best_in_place!
+            +   bootsnap
                 bootstrap-sass (~> 3.4.1)
                 bootstrap-switch-rails
                 bootstrap-toggle-rails
                 bootstrap3-datetimepicker-rails (~> 4.17.47)
-            -   byebug
-            -   capybara (>= 2.15)
+            +   capybara
                 coffee-rails
+            +   debug
                 dynamic_form
                 fuzzy-string-match
                 haml
                 haml-rails
                 in_place_editing
-            -   jbuilder (~> 2.5)
+            +   jbuilder
                 jquery-countdown-rails
                 jquery-rails
                 jquery-tablesorter
                 jquery-ui-rails
                 listen (>= 3.0.5, < 3.2)
                 mail
                 minitest-reporters
                 momentjs-rails (>= 2.9.0)
                 mysql2
                 puma
-            -   rails (~> 5.2)
+            +   rails (~> 7.0)
                 rails-controller-testing
                 rails_bootstrap_sortable
                 rdiscount
                 rouge
                 sassc-rails
                 select2-rails
                 selenium-webdriver
                 simple_form
                 spring
                 spring-watcher-listen (~> 2.0.0)
+            +   sprockets-rails
                 sqlite3
                 uglifier
                 web-console (>= 3.3.0)
-            -   webdriver
+            +   webdrivers
                 yaml_db
+            + RUBY VERSION
+            +    ruby 3.1.0p0
+            +
               BUNDLED WITH
-            -    1.17.2
+            +    2.3.3

README.rdoc ¶ +18 -4

               Since Ubuntu has dedicated package for RVM we will use that. Just follow instruction given in https://github.com/rvm/ubuntu_rvm. For your convenience, the step are reproduced here.
               First, we install necessary package for installing RVM.
                   cafe@grader:~$ sudo apt install software-properties-common
               Second, we add the custom PPA, update the system and install RVM.
                   cafe@grader:~$ sudo apt-add-repository -y ppa:rael-gc/rvm
                   cafe@grader:~$ sudo apt-get update
                   cafe@grader:~$ sudo apt-get install rvm
-            - This is very important. You have to logout and login again since RVM change a lots of system.
+            + We also need to add our user to the rvm group
+            +
+            +     sudo usermod -a -G rvm $USER
-            - If you are using GUI version of Ubuntu, be sure to have Gnome Terminal (or any other terminal you are using) perform login every time. This can be done by mark the check box "Run command as a login shell" in Gnome terminal or by adding --login to bash.
+            + This is very important.
+            + 1. You have to reboot since RVM change a lots of system.
+            + 2. If you are using GUI version of Ubuntu, be sure to have Gnome Terminal (or any other terminal you are using) perform login every time. This can be done by mark the check box "Run command as a login shell" in Gnome terminal or by adding --login to bash.
+            +
+            + === 3. Install necessary package and nodejs
-            - === 3. Install necessary package
+            + First, we install required package via apt.
+            +
+            +     cafe@grader:~$ sudo apt install libmysqlclient-dev default-jdk unzip php-cli apache2 dirmngr gnupg apache2-dev
+            +
+            + Since nodejs that comes with ubuntu 18.04 is very outdated, we need to install it manually. This follow the method outlined in https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-18-04 under *Installing Node.js with Apt Using a NodeSource PPA*
-            -     cafe@grader:~$ sudo apt install libmysqlclient-dev default-jdk unzip nodejs php-cli apache2 dirmngr gnupg apache2-dev
+            +     cd ~
+            +     curl -sL https://deb.nodesource.com/setup_17.x -o nodesource_setup.sh
+            +     sudo bash nodesource_setup.sh
+            +     sudo apt install nodejs
+            +
               === 4. Install cafe-grader
               First, ensure that RVM is installed correctly.
                   cafe@grader:~$ rvm
               If you get a result similar to this.
                   Command 'rvm' not found, but there are 21 similar ones.
               It is very likely that you have not re-login or you are using bash without --login. Please do so and re-read the installation of RVM on Ubuntu https://github.com/rvm/ubuntu_rvm again.

app/assets/stylesheets/graders.css.scss ¶ +18

			@@ -0,0 +1,18
		1	+ table.graders tr {
		2	+ &.active {
		3	+ border: 1px solid black;
		4	+ background: lightgreen;
		5	+ text-align: center;
		6	+ }
		7	+
		8	+ &.inactive {
		9	+ border: 1px solid black;
		10	+ background: #ffcccc;
		11	+ text-align: center;
		12	+ }
		13	+ }
		14	+
		15	+ .submitbox .item {
		16	+ padding-right: 5px;
		17	+ float: left;
		18	+ }

app/assets/stylesheets/problems.css.scss ¶ +15

			@@ -0,0 +1,15
		1	+ tr {
		2	+ &.available {
		3	+ background: #c0ffc0;
		4	+ }
		5	+
		6	+ &.not-available {
		7	+ background: #ffc0c0;
		8	+ }
		9	+ }
		10	+
		11	+ .import-log {
		12	+ background: lightgray;
		13	+ border: solid black 1px;
		14	+ padding: 10px;
		15	+ }

bin/rails ¶ +3 -3

		@@ -1,4 +1,4
1	1	#!/usr/bin/env ruby
2		- APP_PATH = File.expand_path('../config/application', __dir__)
3		- require_relative '../config/boot'
4		- require 'rails/commands'
	2	+ APP_PATH = File.expand_path("../config/application", __dir__)
	3	+ require_relative "../config/boot"
	4	+ require "rails/commands"

bin/rake ¶ +2 -2

               #!/usr/bin/env ruby
-            - require_relative '../config/boot'
-            - require 'rake'
+            + require_relative "../config/boot"
+            + require "rake"
               Rake.application.run

bin/setup ¶ +13 -16

               #!/usr/bin/env ruby
-            - require 'fileutils'
-            - include FileUtils
+            + require "fileutils"
               # path to your application root.
-            - APP_ROOT = File.expand_path('..', __dir__)
+            + APP_ROOT = File.expand_path("..", __dir__)
               def system!(*args)
                 system(*args) || abort("\n== Command #{args} failed ==")
               end
-            - chdir APP_ROOT do
-            -   # This script is a starting point to setup your application.
+            + FileUtils.chdir APP_ROOT do
+            +   # This script is a way to set up or update your development environment automatically.
+            +   # This script is idempotent, so that you can run it at any time and get an expectable outcome.
                 # Add necessary setup steps to this file.
-            -   puts '== Installing dependencies =='
-            -   system! 'gem install bundler --conservative'
-            -   system('bundle check') || system!('bundle install')
+            -
-            -   # Install JavaScript dependencies if using Yarn
-            -   # system('bin/yarn')
+            +   puts "== Installing dependencies =="
+            +   system! "gem install bundler --conservative"
+            +   system("bundle check") || system!("bundle install")
                 # puts "\n== Copying sample files =="
-            -   # unless File.exist?('config/database.yml')
-            -   #   cp 'config/database.yml.sample', 'config/database.yml'
+            +   # unless File.exist?("config/database.yml")
+            +   #   FileUtils.cp "config/database.yml.sample", "config/database.yml"
                 # end
                 puts "\n== Preparing database =="
-            -   system! 'bin/rails db:setup'
+            +   system! "bin/rails db:prepare"
                 puts "\n== Removing old logs and tempfiles =="
-            -   system! 'bin/rails log:clear tmp:clear'
+            +   system! "bin/rails log:clear tmp:clear"
                 puts "\n== Restarting application server =="
-            -   system! 'bin/rails restart'
+            +   system! "bin/rails restart"
               end

bin/yarn ¶ +9 -3

               #!/usr/bin/env ruby
               APP_ROOT = File.expand_path('..', __dir__)
               Dir.chdir(APP_ROOT) do
-            -   begin
-            -     exec "yarnpkg", *ARGV
-            -   rescue Errno::ENOENT
+            +   yarn = ENV["PATH"].split(File::PATH_SEPARATOR).
+            +     select { |dir| File.expand_path(dir) != __dir__ }.
+            +     product(["yarn", "yarn.cmd", "yarn.ps1"]).
+            +     map { |dir, file| File.expand_path(file, dir) }.
+            +     find { |file| File.executable?(file) }
+            +
+            +   if yarn
+            +     exec yarn, *ARGV
+            +   else
                   $stderr.puts "Yarn executable was not detected in the system."
                   $stderr.puts "Download Yarn at https://yarnpkg.com/en/docs/install"
                   exit 1
                 end
               end

config.ru ¶ +4 -2

		@@ -1,4 +1,6
1	1	# This file is used by Rack-based servers to start the application.
2	2
3		- require ::File.expand_path('../config/environment', __FILE__)
4		- run CafeGrader::Application
	3	+ require_relative "config/environment"
	4	+
	5	+ run Rails.application
	6	+ Rails.application.load_server

config/boot.rb ¶ +3 -3

		@@ -1,4 +1,4
1		- ENV['BUNDLE_GEMFILE'] \|\|= File.expand_path(~~'../Gemfile'~~, __dir__)
	1	+ ENV["BUNDLE_GEMFILE"] \|\|= File.expand_path("../Gemfile", __dir__)
2	2
3		- require 'bundler/setup' # Set up gems listed in the Gemfile.
4		- require 'bootsnap/setup' # Speed up boot time by caching expensive operations.
	3	+ require "bundler/setup" # Set up gems listed in the Gemfile.
	4	+ require "bootsnap/setup" # Speed up boot time by caching expensive operations.

config/cable.yml ¶ +1 -1

               development:
                 adapter: async
               test:
-            -   adapter: async
+            +   adapter: test
               production:
                 adapter: redis
                 url: <%= ENV.fetch("REDIS_URL") { "redis://localhost:6379/1" } %>
                 channel_prefix: cafe_grader_production

config/environment.rb ¶ +1 -1

               # Load the Rails application.
-            - require_relative 'application'
+            + require_relative "application"
               # Initialize the Rails application.
               Rails.application.initialize!

config/environments/development.rb ¶ +24 -10

+            + require "active_support/core_ext/integer/time"
+            +
               Rails.application.configure do
                 # Settings specified here will take precedence over those in config/application.rb.
-            -   # In the development environment your application's code is reloaded on
-            -   # every request. This slows down response time but is perfect for development
+            +   # In the development environment your application's code is reloaded any time
+            +   # it changes. This slows down response time but is perfect for development
                 # since you don't have to restart the web server when you make code changes.
                 config.cache_classes = false
                 # Do not eager load code on boot.
                 config.eager_load = false
                 # Show full error reports.
                 config.consider_all_requests_local = true
+            +   # Enable server timing
+            +   config.server_timing = true
+            +
                 # Enable/disable caching. By default caching is disabled.
                 # Run rails dev:cache to toggle caching.
-            -   if Rails.root.join('tmp', 'caching-dev.txt').exist?
+            +   if Rails.root.join("tmp/caching-dev.txt").exist?
                   config.action_controller.perform_caching = true
+            +     config.action_controller.enable_fragment_cache_logging = true
                   config.cache_store = :memory_store
                   config.public_file_server.headers = {
-            -       'Cache-Control' => "public, max-age=#{2.days.to_i}"
+            +       "Cache-Control" => "public, max-age=#{2.days.to_i}"
                   }
                 else
                   config.action_controller.perform_caching = false
                   config.cache_store = :null_store
                 end
-            -   # Store uploaded files on the local file system (see config/storage.yml for options)
+            +   # Store uploaded files on the local file system (see config/storage.yml for options).
                 config.active_storage.service = :local
                 # Don't care if the mailer can't send.
                 config.action_mailer.raise_delivery_errors = false
                 config.action_mailer.perform_caching = false
                 # Print deprecation notices to the Rails logger.
                 config.active_support.deprecation = :log
+            +   # Raise exceptions for disallowed deprecations.
+            +   config.active_support.disallowed_deprecation = :raise
+            +
+            +   # Tell Active Support which deprecation messages to disallow.
+            +   config.active_support.disallowed_deprecation_warnings = []
+            +
                 # Raise an error on page load if there are pending migrations.
                 config.active_record.migration_error = :page_load
                 # Highlight code that triggered database queries in logs.
                 config.active_record.verbose_query_logs = true
                 # Debug mode disables concatenation and preprocessing of assets.
                 # This option may cause significant delays in view rendering with a large
                 # number of complex assets.
                 config.assets.debug = true
                 # Suppress logger output for asset requests.
                 config.assets.quiet = true
-            -   # Raises error for missing translations
-            -   # config.action_view.raise_on_missing_translations = true
+            +   # Raises error for missing translations.
+            +   # config.i18n.raise_on_missing_translations = true
-            -   # Use an evented file watcher to asynchronously detect changes in source code,
-            -   # routes, locales, etc. This feature depends on the listen gem.
-            -   config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+            +   # Annotate rendered view with file names.
+            +   # config.action_view.annotate_rendered_view_with_filenames = true
+            +
+            +   # Uncomment if you wish to allow Action Cable access from any origin.
+            +   # config.action_cable.disable_request_forgery_protection = true
               end

config/environments/production.rb ¶ +24 -19

+            + require "active_support/core_ext/integer/time"
+            +
               Rails.application.configure do
                 # Settings specified here will take precedence over those in config/application.rb.
                 # Code is not reloaded between requests.
                 config.cache_classes = true
                 # Eager load code on boot. This eager loads most of Rails and
                 # your application in memory, allowing both threaded web servers
                 # and those relying on copy on write to perform better.
                 # Rake tasks automatically ignore this option for performance.
                 config.eager_load = true
                 # Full error reports are disabled and caching is turned on.
                 config.consider_all_requests_local       = false
                 config.action_controller.perform_caching = true
                 # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
                 # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
                 # config.require_master_key = true
                 # Disable serving static files from the `/public` folder by default since
                 # Apache or NGINX already handles this.
-            -   config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
+            +   config.public_file_server.enabled = ENV["RAILS_SERVE_STATIC_FILES"].present?
-            -   # Compress JavaScripts and CSS.
-            -   config.assets.js_compressor = :uglifier
+            +   # Compress CSS using a preprocessor.
                 # config.assets.css_compressor = :sass
                 # Do not fallback to assets pipeline if a precompiled asset is missed.
                 config.assets.compile = false
-            -   # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
+            -
                 # Enable serving of images, stylesheets, and JavaScripts from an asset server.
-            -   # config.action_controller.asset_host = 'http://assets.example.com'
+            +   # config.asset_host = "http://assets.example.com"
                 # Specifies the header that your server uses for sending files.
-            -   # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
-            -   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
+            +   # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for Apache
+            +   # config.action_dispatch.x_sendfile_header = "X-Accel-Redirect" # for NGINX
-            -   # Store uploaded files on the local file system (see config/storage.yml for options)
+            +   # Store uploaded files on the local file system (see config/storage.yml for options).
                 config.active_storage.service = :local
-            -   # Mount Action Cable outside main process or domain
+            +   # Mount Action Cable outside main process or domain.
                 # config.action_cable.mount_path = nil
-            -   # config.action_cable.url = 'wss://example.com/cable'
-            -   # config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
+            +   # config.action_cable.url = "wss://example.com/cable"
+            +   # config.action_cable.allowed_request_origins = [ "http://example.com", /http:\/\/example.*/ ]
                 # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
                 # config.force_ssl = true
-            -   # Use the lowest log level to ensure availability of diagnostic information
-            -   # when problems arise.
-            -   config.log_level = :debug
+            +   # Include generic and useful information about system operation, but avoid logging too much
+            +   # information to avoid inadvertent exposure of personally identifiable information (PII).
+            +   config.log_level = :info
                 # Prepend all log lines with the following tags.
                 config.log_tags = [ :request_id ]
                 # Use a different cache store in production.
                 # config.cache_store = :mem_cache_store
-            -   # Use a real queuing backend for Active Job (and separate queues per environment)
+            +   # Use a real queuing backend for Active Job (and separate queues per environment).
                 # config.active_job.queue_adapter     = :resque
-            -   # config.active_job.queue_name_prefix = "cafe_grader_#{Rails.env}"
+            +   # config.active_job.queue_name_prefix = "cafe_grader_production"
                 config.action_mailer.perform_caching = false
                 # Ignore bad email addresses and do not raise email delivery errors.
                 # Set this to true and configure the email server for immediate delivery to raise delivery errors.
                 # config.action_mailer.raise_delivery_errors = false
                 # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
                 # the I18n.default_locale when a translation cannot be found).
                 config.i18n.fallbacks = true
                 # Send deprecation notices to registered listeners.
                 config.active_support.deprecation = :notify
+            +   # Log disallowed deprecations.
+            +   config.active_support.disallowed_deprecation = :log
+            +
+            +   # Tell Active Support which deprecation messages to disallow.
+            +   config.active_support.disallowed_deprecation_warnings = []
+            +
                 # Use default logging formatter so that PID and timestamp are not suppressed.
                 config.log_formatter = ::Logger::Formatter.new
                 # Use a different logger for distributed setups.
-            -   # require 'syslog/logger'
-            -   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
+            +   # require "syslog/logger"
+            +   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new "app-name")
                 if ENV["RAILS_LOG_TO_STDOUT"].present?
                   logger           = ActiveSupport::Logger.new(STDOUT)
                   logger.formatter = config.log_formatter
                   config.logger    = ActiveSupport::TaggedLogging.new(logger)
                 end
                 # Do not dump schema after migrations.
                 config.active_record.dump_schema_after_migration = false
               end

config/environments/test.rb ¶ +24 -10

-            - Rails.application.configure do
-            -   # Settings specified here will take precedence over those in config/application.rb.
+            + require "active_support/core_ext/integer/time"
-                # The test environment is used exclusively to run your application's
-                # test suite. You never need to work with it otherwise. Remember that
-                # your test database is "scratch space" for the test suite and is wiped
-                # and recreated between test runs. Don't rely on the data there!
+            +
+            + Rails.application.configure do
+            +   # Settings specified here will take precedence over those in config/application.rb.
+            +
+            +   # Turn false under Spring and add config.action_view.cache_template_loading = true.
                 config.cache_classes = true
-            -   # Do not eager load code on boot. This avoids loading your whole application
-            -   # just for the purpose of running a single test. If you are using a tool that
-            -   # preloads Rails for running tests, you may have to set it to true.
-            -   config.eager_load = false
+            +   # Eager loading loads your whole application. When running a single test locally,
+            +   # this probably isn't necessary. It's a good idea to do in a continuous integration
+            +   # system, or in some way before deploying your code.
+            +   config.eager_load = ENV["CI"].present?
                 # Configure public file server for tests with Cache-Control for performance.
                 config.public_file_server.enabled = true
                 config.public_file_server.headers = {
-            -     'Cache-Control' => "public, max-age=#{1.hour.to_i}"
+            +     "Cache-Control" => "public, max-age=#{1.hour.to_i}"
                 }
                 # Show full error reports and disable caching.
                 config.consider_all_requests_local       = true
                 config.action_controller.perform_caching = false
+            +   config.cache_store = :null_store
                 # Raise exceptions instead of rendering exception templates.
                 config.action_dispatch.show_exceptions = false
                 # Disable request forgery protection in test environment.
                 config.action_controller.allow_forgery_protection = false
-            -   # Store uploaded files on the local file system in a temporary directory
+            +   # Store uploaded files on the local file system in a temporary directory.
                 config.active_storage.service = :test
                 config.action_mailer.perform_caching = false
                 # Tell Action Mailer not to deliver emails to the real world.
                 # The :test delivery method accumulates sent emails in the
                 # ActionMailer::Base.deliveries array.
                 config.action_mailer.delivery_method = :test
                 # Print deprecation notices to the stderr.
                 config.active_support.deprecation = :stderr
-            -   # Raises error for missing translations
-            -   # config.action_view.raise_on_missing_translations = true
+            +   # Raise exceptions for disallowed deprecations.
+            +   config.active_support.disallowed_deprecation = :raise
+            +
+            +   # Tell Active Support which deprecation messages to disallow.
+            +   config.active_support.disallowed_deprecation_warnings = []
+            +
+            +   # Raises error for missing translations.
+            +   # config.i18n.raise_on_missing_translations = true
+            +
+            +   # Annotate rendered view with file names.
+            +   # config.action_view.annotate_rendered_view_with_filenames = true
               end

config/initializers/assets.rb ¶ +1 -1

               # Be sure to restart your server when you modify this file.
               # Version of your assets, change this if you want to expire all your assets.
-            - Rails.application.config.assets.version = '1.0'
+            + Rails.application.config.assets.version = "1.0"
               # Add additional assets to the asset load path.
               # Rails.application.config.assets.paths << Emoji.images_path
               # Add Yarn node_modules folder to the asset load path.
               Rails.application.config.assets.paths << Rails.root.join('node_modules')
               # Precompile additional assets.
               # application.js, application.css, and all non-JS/CSS in the app/assets
               # folder are already added.
               # Rails.application.config.assets.precompile += %w( admin.js admin.css )
               Rails.application.config.assets.precompile += ['announcement_refresh.js','effects.js','site_update.js']
               Rails.application.config.assets.precompile += ['local_jquery.js','tablesorter-theme.cafe.css']

config/initializers/backtrace_silencers.rb ¶ +4 -3

               # Be sure to restart your server when you modify this file.
               # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
-            - # Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
+            + # Rails.backtrace_cleaner.add_silencer { |line| /my_noisy_library/.match?(line) }
-            - # You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
-            - # Rails.backtrace_cleaner.remove_silencers!
+            + # You can also remove all the silencers if you're trying to debug a problem that might stem from framework code
+            + # by setting BACKTRACE=1 before calling your invocation, like "BACKTRACE=1 ./bin/rails runner 'MyClass.perform'".
+            + Rails.backtrace_cleaner.remove_silencers! if ENV["BACKTRACE"]

config/initializers/content_security_policy.rb ¶ +11 -10

               # Be sure to restart your server when you modify this file.
               # Define an application-wide content security policy
               # For further information see the following documentation
               # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
-            - # Rails.application.config.content_security_policy do |policy|
+            + # Rails.application.configure do
+            + #   config.content_security_policy do |policy|
               #   policy.default_src :self, :https
               #   policy.font_src    :self, :https, :data
               #   policy.img_src     :self, :https, :data
               #   policy.object_src  :none
               #   policy.script_src  :self, :https
               #   policy.style_src   :self, :https
+            -
               #   # Specify URI for violation reports
               #   # policy.report_uri "/csp-violation-report-endpoint"
               # end
+            -
-            - # If you are using UJS then enable automatic nonce generation
-            - # Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) }
+            -
-            - # Report CSP violations to a specified URI
-            - # For further information see the following documentation:
-            - # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
-            - # Rails.application.config.content_security_policy_report_only = true
+            + #
+            + #   # Generate session nonces for permitted importmap and inline scripts
+            + #   config.content_security_policy_nonce_generator = ->(request) { request.session.id.to_s }
+            + #   config.content_security_policy_nonce_directives = %w(script-src)
+            + #
+            + #   # Report CSP violations to a specified URI. See:
+            + #   # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
+            + #   # config.content_security_policy_report_only = true
+            + # end

config/initializers/filter_parameter_logging.rb ¶ +3 -1

               # Be sure to restart your server when you modify this file.
               # Configure sensitive parameters which will be filtered from the log file.
-            - Rails.application.config.filter_parameters += [:password]
+            + Rails.application.config.filter_parameters += [
+            +   :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
+            + ]

config/initializers/inflections.rb ¶ +4 -4

               # Be sure to restart your server when you modify this file.
               # Add new inflection rules using the following format. Inflections
               # are locale specific, and you may define rules for as many different
               # locales as you wish. All of these examples are active by default:
               # ActiveSupport::Inflector.inflections(:en) do |inflect|
-            - #   inflect.plural /^(ox)$/i, '\1en'
-            - #   inflect.singular /^(ox)en/i, '\1'
-            - #   inflect.irregular 'person', 'people'
+            + #   inflect.plural /^(ox)$/i, "\\1en"
+            + #   inflect.singular /^(ox)en/i, "\\1"
+            + #   inflect.irregular "person", "people"
               #   inflect.uncountable %w( fish sheep )
               # end
               # These inflection rules are supported but not enabled by default:
               # ActiveSupport::Inflector.inflections(:en) do |inflect|
-            - #   inflect.acronym 'RESTful'
+            + #   inflect.acronym "RESTful"
               # end

config/puma.rb ¶ +11 -2

               # Puma can serve each request in a thread from an internal thread pool.
               # The `threads` method setting takes two numbers: a minimum and maximum.
               # Any libraries that use thread pools should be configured to match
               # the maximum value specified for Puma. Default is set to 5 threads for minimum
               # and maximum; this matches the default thread size of Active Record.
               #
-            - threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
-            - threads threads_count, threads_count
+            + max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
+            + min_threads_count = ENV.fetch("RAILS_MIN_THREADS") { max_threads_count }
+            + threads min_threads_count, max_threads_count
+            +
+            + # Specifies the `worker_timeout` threshold that Puma will use to wait before
+            + # terminating a worker in development environments.
+            + #
+            + worker_timeout 3600 if ENV.fetch("RAILS_ENV", "development") == "development"
               # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
               #
-              port        ENV.fetch("PORT") { 3000 }
               # Specifies the `environment` that Puma will run in.
               #
               environment ENV.fetch("RAILS_ENV") { "development" }
+            + # Specifies the `pidfile` that Puma will use.
+            + pidfile ENV.fetch("PIDFILE") { "tmp/pids/server.pid" }
+            +
               # Specifies the number of `workers` to boot in clustered mode.
               # Workers are forked webserver processes. If using threads and workers together
               # the concurrency of the application would be max `threads` * `workers`.
               # Workers do not work on JRuby or Windows (both of which do not support
               # processes).
               #
               # workers ENV.fetch("WEB_CONCURRENCY") { 2 }
               # Use the `preload_app!` method when specifying a `workers` number.
               # This directive tells Puma to first boot the application and load code
               # before forking the application. This takes advantage of Copy On Write
               # process behavior so workers use less memory.

config/spring.rb ¶ +6 -6

		@@ -1,6 +1,6
1		- %w(
2		- .ruby-version
3		- .rbenv-vars
4		- tmp/restart.txt
5		- tmp/caching-dev.txt
6		- ).each { \|path\| Spring.watch(path) }
	1	+ Spring.watch(
	2	+ ".ruby-version",
	3	+ ".rbenv-vars",
	4	+ "tmp/restart.txt",
	5	+ "tmp/caching-dev.txt"
	6	+ )

db/migrate/001_create_users.rb ¶ +2 -2

-            - class CreateUsers < ActiveRecord::Migration
+            + class CreateUsers < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :users do |t|
+            +     create_table :users, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :login, :string, :limit => 10
                     t.column :full_name, :string
                     t.column :hashed_password, :string
                     t.column :salt, :string, :limit => 5
                     t.column :alias, :string
                   end
                   # force unique name
                   add_index :users, :login, :unique => true
                 end
                 def self.down
                   drop_table :users

db/migrate/002_create_problems.rb ¶ +2 -2

-            - class CreateProblems < ActiveRecord::Migration
+            + class CreateProblems < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :problems do |t|
+            +     create_table :problems, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :name, :string, :limit => 30
                     t.column :full_name, :string
                     t.column :full_score, :integer
                     t.column :date_added, :date
                     t.column :available, :boolean
                   end
                 end
                 def self.down
                   drop_table :problems
                 end
               end

db/migrate/003_create_submissions.rb ¶ +2 -2

-            - class CreateSubmissions < ActiveRecord::Migration
+            + class CreateSubmissions < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :submissions do |t|
+            +     create_table :submissions, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :user_id, :integer
                     t.column :problem_id, :integer
                     t.column :language_id, :integer
                     t.column :source, :text
                     t.column :binary, :binary
                     t.column :submitted_at, :datetime
                     t.column :compiled_at, :datetime
                     t.column :compiler_message, :text
                     t.column :graded_at, :datetime
                     t.column :points, :integer
                     t.column :grader_comment, :text
                   end

db/migrate/004_create_languages.rb ¶ +2 -2

-            - class CreateLanguages < ActiveRecord::Migration
+            + class CreateLanguages < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :languages do |t|
+            +     create_table :languages, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :name, :string, :limit => 10
                     t.column :pretty_name, :string
                   end
                   Language.create(:name => "c", :pretty_name => "C")
                   Language.create(:name => "cpp", :pretty_name => "C++")
                   Language.create(:name => "pas", :pretty_name => "Pascal")
                 end
                 def self.down
                   drop_table :languages
                 end

db/migrate/005_add_index_to_submissions.rb ¶ +1 -1

-            - class AddIndexToSubmissions < ActiveRecord::Migration
+            + class AddIndexToSubmissions < ActiveRecord::Migration[4.2]
                 def self.up
                   add_index :submissions, [:user_id, :problem_id]
                 end
                 def self.down
                   remove_index :submissions, :column => [:user_id, :problem_id]
                 end
               end

db/migrate/006_create_roles.rb ¶ +3 -3

-            - class CreateRoles < ActiveRecord::Migration
+            + class CreateRoles < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :roles do |t|
+            +     create_table :roles, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column 'name', :string
                   end
-            -     create_table :roles_users, :id => false do |t|
+            +     create_table :roles_users, :id => false, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column 'role_id', :integer
                     t.column 'user_id', :integer
                   end
                   add_index :roles_users, :user_id
                 end
                 def self.down
                   drop_table :roles_users
                   drop_table :roles
                 end
               end

db/migrate/007_create_rights.rb ¶ +3 -3

-            - class CreateRights < ActiveRecord::Migration
+            + class CreateRights < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :rights do |t|
+            +     create_table :rights, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column 'name', :string
                     t.column 'controller', :string
                     t.column 'action', :string
                   end
-            -     create_table :rights_roles, :id => false do |t|
+            +     create_table :rights_roles, :id => false, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column 'right_id', :integer
                     t.column 'role_id', :integer
                   end
                   add_index :rights_roles, :role_id
                 end
                 def self.down
                   drop_table :rights_roles
                   drop_table :rights
                 end
               end

db/migrate/008_create_tasks.rb ¶ +2 -2

-            - class CreateTasks < ActiveRecord::Migration
+            + class CreateTasks < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :tasks do |t|
+            +     create_table :tasks, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column 'submission_id', :integer
                     t.column 'created_at', :datetime
                   end
                 end
                 def self.down
                   drop_table :tasks
                 end
               end

db/migrate/009_add_sessions.rb ¶ +2 -2

-            - class AddSessions < ActiveRecord::Migration
+            + class AddSessions < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :sessions do |t|
+            +     create_table :sessions, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :session_id, :string
                     t.column :data, :text
                     t.column :updated_at, :datetime
                   end
                   add_index :sessions, :session_id
                   add_index :sessions, :updated_at
                 end
                 def self.down
                   drop_table :sessions
                 end

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

-            - class AddLanguageExt < ActiveRecord::Migration
+            + class AddLanguageExt < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :languages, :ext, :string, :limit => 10
                   Language.reset_column_information
                   langs = Language.all
                   langs.each do |l|
                     l.ext = l.name
                     l.save
                   end
                 end
                 def self.down

db/migrate/012_add_email_to_users.rb ¶ +1 -1

-            - class AddEmailToUsers < ActiveRecord::Migration
+            + class AddEmailToUsers < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :users, :email, :string
                 end
                 def self.down
                   remove_column :users, :email
                 end
               end

db/migrate/013_add_url_to_problem.rb ¶ +1 -1

-            - class AddUrlToProblem < ActiveRecord::Migration
+            + class AddUrlToProblem < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :problems, :url, :string
                 end
                 def self.down
                   remove_column :problems, :url
                 end
               end

db/migrate/014_create_grader_processes.rb ¶ +2 -2

-            - class CreateGraderProcesses < ActiveRecord::Migration
+            + class CreateGraderProcesses < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :grader_processes do |t|
+            +     create_table :grader_processes, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :ip, :string, :limit => 20
                     t.column :pid, :integer
                     t.column :mode, :string
                     t.column :active, :boolean
                     t.timestamps
                   end
                   add_index :grader_processes, ["ip","pid"]
                 end
                 def self.down
                   drop_table :grader_processes
                 end

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

-            - class AddStatusToTasks < ActiveRecord::Migration
+            + class AddStatusToTasks < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :tasks, :status, :integer
                   add_column :tasks, :updated_at, :datetime
                   Task.reset_column_information
                   Task.all.each do |task|
                     task.status_complete
                     task.save
                   end
                 end
                 def self.down

db/migrate/016_add_task_to_grader_process.rb ¶ +1 -1

-            - class AddTaskToGraderProcess < ActiveRecord::Migration
+            + class AddTaskToGraderProcess < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :grader_processes, :task_id, :integer
                 end
                 def self.down
                   remove_column :grader_processes, :task_id
                 end
               end

db/migrate/017_rename_grader_process_column_ip_to_host.rb ¶ +1 -1

-            - class RenameGraderProcessColumnIpToHost < ActiveRecord::Migration
+            + class RenameGraderProcessColumnIpToHost < ActiveRecord::Migration[4.2]
                 def self.up
                   rename_column :grader_processes, :ip, :host
                 end
                 def self.down
                   rename_column :grader_processes, :host, :ip
                 end
               end

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

-            - class AddNumberToSubmissions < ActiveRecord::Migration
+            + class AddNumberToSubmissions < ActiveRecord::Migration[4.2]
                 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.order('user_id, problem_id, submitted_at').each do |submission|
                     if submission.user_id==last_user_id and submission.problem_id==last_problem_id

db/migrate/019_create_test_requests.rb ¶ +2 -3

-            - class CreateTestRequests < ActiveRecord::Migration
+            + class CreateTestRequests < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :test_requests do |t|
+            +     create_table :test_requests, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :user_id, :integer
                     t.column :problem_id, :integer
                     t.column :submission_id, :integer
                     t.column :input_file_name, :string
                     t.column :output_file_name, :string
                     t.column :running_stat, :string
                     # these are similar to tasks
                     t.column :status, :integer
-            -       t.column :updated_at, :datetime
                     # these are intentionally similar to submissions
                     t.column :submitted_at, :datetime
                     t.column :compiled_at, :datetime
                     t.column :compiler_message, :string
                     t.column :graded_at, :datetime
                     t.column :grader_comment, :string
                     t.timestamps
                   end
                   add_index :test_requests, [:user_id, :problem_id]
                 end

db/migrate/021_change_compiler_message_type_test_request.rb ¶ +1 -1

-            - class ChangeCompilerMessageTypeTestRequest < ActiveRecord::Migration
+            + class ChangeCompilerMessageTypeTestRequest < ActiveRecord::Migration[4.2]
                 def self.up
                   change_column :test_requests, :compiler_message, :text
                 end
                 def self.down
                   change_column :test_requests, :compiler_message, :string
                 end
               end

db/migrate/022_create_configurations.rb ¶ +2 -2

-            - class CreateConfigurations < ActiveRecord::Migration
+            + class CreateConfigurations < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :configurations do |t|
+            +     create_table :configurations, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :key, :string
                     t.column :value_type, :string
                     t.column :value, :string
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :configurations
                 end
               end

db/migrate/023_add_runstat_columns_to_test_request.rb ¶ +1 -1

-            - class AddRunstatColumnsToTestRequest < ActiveRecord::Migration
+            + class AddRunstatColumnsToTestRequest < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :test_requests, :running_time, :float
                   add_column :test_requests, :exit_status, :string
                   add_column :test_requests, :memory_usage, :integer
                 end
                 def self.down
                   remove_column :test_requests, :running_time
                   remove_column :test_requests, :exit_status
                   remove_column :test_requests, :memory_usage
                 end
               end

db/migrate/024_create_sites.rb ¶ +2 -2

-            - class CreateSites < ActiveRecord::Migration
+            + class CreateSites < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :sites do |t|
+            +     create_table :sites, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.string :name
                     t.boolean :started
                     t.datetime :start_time
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :sites
                 end
               end

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

-            - class AddSiteToUserAndAddDefaultSite < ActiveRecord::Migration
+            + class AddSiteToUserAndAddDefaultSite < ActiveRecord::Migration[4.2]
                 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.all.each do |user|
                     class << user
                       def valid?

db/migrate/026_add_body_to_problems.rb ¶ +1 -1

-            - class AddBodyToProblems < ActiveRecord::Migration
+            + class AddBodyToProblems < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :problems, :body, :text
                 end
                 def self.down
                   remove_column :problems, :body
                 end
               end

db/migrate/027_create_descriptions.rb ¶ +2 -2

-            - class CreateDescriptions < ActiveRecord::Migration
+            + class CreateDescriptions < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :descriptions do |t|
+            +     create_table :descriptions, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :body, :text
                     t.column :markdowned, :boolean
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :descriptions
                 end
               end

db/migrate/028_refactor_problem_body_to_description.rb ¶ +1 -1

-            - class RefactorProblemBodyToDescription < ActiveRecord::Migration
+            + class RefactorProblemBodyToDescription < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :problems, :description_id, :integer
                   Problem.reset_column_information
                   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

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

-            - class AddTestAllowedToProblems < ActiveRecord::Migration
+            + class AddTestAllowedToProblems < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :problems, :test_allowed, :boolean
                   Problem.reset_column_information
                   Problem.all.each do |problem|
                     problem.test_allowed = true
                     problem.save
                   end
                 end
                 def self.down
                   remove_column :problems, :test_allowed

db/migrate/030_create_announcements.rb ¶ +2 -2

-            - class CreateAnnouncements < ActiveRecord::Migration
+            + class CreateAnnouncements < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :announcements do |t|
+            +     create_table :announcements, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.string :author
                     t.text :body
                     t.boolean :published
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :announcements
                 end
               end

db/migrate/031_add_supports_for_output_only_problems.rb ¶ +1 -1

-            - class AddSupportsForOutputOnlyProblems < ActiveRecord::Migration
+            + class AddSupportsForOutputOnlyProblems < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :submissions, :source_filename, :string
                   add_column :problems, :output_only, :boolean
                 end
                 def self.down
                   remove_column :submissions, :source_filename
                   remove_column :problems, :output_only
                 end
               end

db/migrate/032_create_messages.rb ¶ +2 -2

-            - class CreateMessages < ActiveRecord::Migration
+            + class CreateMessages < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :messages do |t|
+            +     create_table :messages, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column "sender_id", :integer
                     t.column "receiver_id", :integer
                     t.column "replying_message_id", :integer
                     t.column "body", :text
                     t.column "replied", :boolean   # this is for efficiency
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :messages

db/migrate/033_add_task_type_to_grader_processes.rb ¶ +1 -1

-            - class AddTaskTypeToGraderProcesses < ActiveRecord::Migration
+            + class AddTaskTypeToGraderProcesses < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column 'grader_processes', 'task_type', :string
                 end
                 def self.down
                   remove_column 'grader_processes', 'task_type'
                 end
               end

db/migrate/034_create_countries.rb ¶ +2 -2

-            - class CreateCountries < ActiveRecord::Migration
+            + class CreateCountries < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :countries do |t|
+            +     create_table :countries, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column :name, :string
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :countries
                 end
               end

db/migrate/035_add_country_to_sites_and_users.rb ¶ +1 -1

-            - class AddCountryToSitesAndUsers < ActiveRecord::Migration
+            + class AddCountryToSitesAndUsers < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column 'sites', 'country_id', :integer
                   add_column 'sites', 'password', :string
                   add_column 'users', 'country_id', :integer
                 end
                 def self.down
                   remove_column 'users', 'country_id'
                   remove_column 'sites', 'country_id'
                   remove_column 'sites', 'password'

db/migrate/20081107145815_add_frontpage_flag_to_announcement.rb ¶ +1 -1

-            - class AddFrontpageFlagToAnnouncement < ActiveRecord::Migration
+            + class AddFrontpageFlagToAnnouncement < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :announcements, "frontpage", :boolean, :default => 0
                 end
                 def self.down
                   remove_column :announcements, "frontpage"
                 end
               end

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

-            - class AddActivatedToUsers < ActiveRecord::Migration
+            + class AddActivatedToUsers < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :users, :activated, :boolean, :default => 0
                   User.reset_column_information
                   User.all.each do |user|
                     # disable validation
                     class <<user
                       def valid?
                         return true
                       end

db/migrate/20081210021333_add_timestamps_to_users.rb ¶ +1 -1

-            - class AddTimestampsToUsers < ActiveRecord::Migration
+            + class AddTimestampsToUsers < ActiveRecord::Migration[4.2]
                 def self.up
                   add_timestamps :users
                 end
                 def self.down
                   remove_timestamps :users
                 end
               end

db/migrate/20081215012843_change_user_login_string_limit.rb ¶ +1 -1

-            - class ChangeUserLoginStringLimit < ActiveRecord::Migration
+            + class ChangeUserLoginStringLimit < ActiveRecord::Migration[4.2]
                 def self.up
                   execute "ALTER TABLE `users` CHANGE `login` `login` VARCHAR( 50 )"
                 end
                 def self.down
                   # don't have to revert
                 end
               end

db/migrate/20090206145016_add_contest_flag_to_announcements.rb ¶ +1 -1

-            - class AddContestFlagToAnnouncements < ActiveRecord::Migration
+            + class AddContestFlagToAnnouncements < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :announcements, :contest_only, :boolean, :default => false
                 end
                 def self.down
                   remove_column :announcements, :contest_only
                 end
               end

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

-            - class AddCommonExtToLanguages < ActiveRecord::Migration
+            + class AddCommonExtToLanguages < ActiveRecord::Migration[4.2]
                 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'
                   }

db/migrate/20090426131044_add_terminated_to_grader_processes.rb ¶ +1 -1

-            - class AddTerminatedToGraderProcesses < ActiveRecord::Migration
+            + class AddTerminatedToGraderProcesses < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :grader_processes, :terminated, :boolean
                 end
                 def self.down
                   remove_column :grader_processes, :terminated
                 end
               end

db/migrate/20090815171610_add_title_to_announcements.rb ¶ +1 -1

-            - class AddTitleToAnnouncements < ActiveRecord::Migration
+            + class AddTitleToAnnouncements < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :announcements, :title, :string
                 end
                 def self.down
                   remove_column :announcements, :title
                 end
               end

db/migrate/20100113094740_create_test_pairs.rb ¶ +2 -2

-            - class CreateTestPairs < ActiveRecord::Migration
+            + class CreateTestPairs < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :test_pairs do |t|
+            +     create_table :test_pairs, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.integer :problem_id
                     t.text :input
                     t.text :solution
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :test_pairs
                 end
               end

db/migrate/20100124040107_add_description_to_config.rb ¶ +1 -1

-            - class AddDescriptionToConfig < ActiveRecord::Migration
+            + class AddDescriptionToConfig < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :configurations, :description, :text
                 end
                 def self.down
                   remove_column :configurations, :description
                 end
               end

db/migrate/20100124054458_create_user_contest_stats.rb ¶ +2 -2

-            - class CreateUserContestStats < ActiveRecord::Migration
+            + class CreateUserContestStats < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :user_contest_stats do |t|
+            +     create_table :user_contest_stats, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.integer :user_id
                     t.timestamp :started_at
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :user_contest_stats
                 end
               end

db/migrate/20100129041917_change_input_solution_field_limit_in_test_pair.rb ¶ +1 -1

-            - class ChangeInputSolutionFieldLimitInTestPair < ActiveRecord::Migration
+            + class ChangeInputSolutionFieldLimitInTestPair < ActiveRecord::Migration[4.2]
                 def self.up
                   change_column :test_pairs, :input, :text, :limit => 1.megabytes
                   change_column :test_pairs, :solution, :text, :limit => 1.megabytes
                 end
                 def self.down
                   change_column :test_pairs, :input, :text
                   change_column :test_pairs, :solution, :text
                 end
               end

db/migrate/20100216105730_create_contests.rb ¶ +2 -2

-            - class CreateContests < ActiveRecord::Migration
+            + class CreateContests < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :contests do |t|
+            +     create_table :contests, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.string :title
                     t.boolean :enabled
                     t.timestamps
                   end
                 end
                 def self.down
                   drop_table :contests
                 end
               end

db/migrate/20100216162324_create_contests_users_join_table.rb ¶ +2 -2

-            - class CreateContestsUsersJoinTable < ActiveRecord::Migration
+            + class CreateContestsUsersJoinTable < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :contests_users, :id => false do |t|
+            +     create_table :contests_users, :id => false, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.integer :contest_id
                     t.integer :user_id
                   end
                 end
                 def self.down
                   drop_table :contests_users
                 end
               end

db/migrate/20100216162940_create_contests_problems_join_table.rb ¶ +2 -2

-            - class CreateContestsProblemsJoinTable < ActiveRecord::Migration
+            + class CreateContestsProblemsJoinTable < ActiveRecord::Migration[4.2]
                 def self.up
-            -     create_table :contests_problems, :id => false do |t|
+            +     create_table :contests_problems, :id => false, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.integer :contest_id
                     t.integer :problem_id
                   end
                 end
                 def self.down
                   drop_table :contests_problems
                 end
               end

db/migrate/20100219014840_add_description_filename_to_problems.rb ¶ +1 -1

-            - class AddDescriptionFilenameToProblems < ActiveRecord::Migration
+            + class AddDescriptionFilenameToProblems < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :problems, :description_filename, :string
                 end
                 def self.down
                   remove_column :problems, :description_filename
                 end
               end

db/migrate/20100303095700_add_name_to_contests.rb ¶ +1 -1

-            - class AddNameToContests < ActiveRecord::Migration
+            + class AddNameToContests < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :contests, :name, :string
                 end
                 def self.down
                   remove_column :contests, :name
                 end
               end

db/migrate/20100328123325_add_forced_logout_to_user_contest_stat.rb ¶ +1 -1

-            - class AddForcedLogoutToUserContestStat < ActiveRecord::Migration
+            + class AddForcedLogoutToUserContestStat < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :user_contest_stats, :forced_logout, :boolean
                 end
                 def self.down
                   remove_column :user_contest_stats, :forced_logout, :boolean
                 end
               end

db/migrate/20100506163112_add_notes_to_announcements.rb ¶ +1 -1

-            - class AddNotesToAnnouncements < ActiveRecord::Migration
+            + class AddNotesToAnnouncements < ActiveRecord::Migration[4.2]
                 def self.up
                   add_column :announcements, :notes, :string
                 end
                 def self.down
                   remove_column :announcements, :notes
                 end
               end

db/migrate/20121001033508_rename_configurations_to_grader_configurations.rb ¶ +1 -1

-            - class RenameConfigurationsToGraderConfigurations < ActiveRecord::Migration
+            + class RenameConfigurationsToGraderConfigurations < ActiveRecord::Migration[4.2]
                 def change
                   rename_table 'configurations', 'grader_configurations'
                 end
               end

db/migrate/20140823031747_add_more_detail_to_submission.rb ¶ +1 -1

-            - class AddMoreDetailToSubmission < ActiveRecord::Migration
+            + class AddMoreDetailToSubmission < ActiveRecord::Migration[4.2]
                 def change
                   add_column :submissions, :max_runtime, :float
                   add_column :submissions, :peak_memory, :integer
                   add_column :submissions, :effective_code_length, :integer
                 end
               end

db/migrate/20140826095949_create_logins.rb ¶ +2 -2

-            - class CreateLogins < ActiveRecord::Migration
+            + class CreateLogins < ActiveRecord::Migration[4.2]
                 def change
-            -     create_table :logins do |t|
+            +     create_table :logins, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.string :user_id
                     t.string :ip_address
                     t.timestamps
                   end
                 end
               end

db/migrate/20140913060729_add_section_to_users.rb ¶ +1 -1

-            - class AddSectionToUsers < ActiveRecord::Migration
+            + class AddSectionToUsers < ActiveRecord::Migration[4.2]
                 def change
                   add_column :users, :section, :string
                 end
               end

db/migrate/20140917150629_add_ip_to_submissions.rb ¶ +1 -1

-            - class AddIpToSubmissions < ActiveRecord::Migration
+            + class AddIpToSubmissions < ActiveRecord::Migration[4.2]
                 def change
                   add_column :submissions, :ip_address, :string
                 end
               end

db/migrate/20150203153534_add_more_to_users.rb ¶ +1 -1

-            - class AddMoreToUsers < ActiveRecord::Migration
+            + class AddMoreToUsers < ActiveRecord::Migration[4.2]
                 def change
                   add_column :users, :enabled, :boolean, default: 1
                   add_column :users, :remark, :string
                 end
               end

db/migrate/20150503164846_change_userid_on_login.rb ¶ +1 -1

-            - class ChangeUseridOnLogin < ActiveRecord::Migration
+            + class ChangeUseridOnLogin < ActiveRecord::Migration[4.2]
                 def up
                   change_column :logins, :user_id, :integer
                 end
                 def down
                   change_column :logins, :user_id, :string
                 end
               end

db/migrate/20150827131927_create_submission_view_logs.rb ¶ +2 -2

-            - class CreateSubmissionViewLogs < ActiveRecord::Migration
+            + class CreateSubmissionViewLogs < ActiveRecord::Migration[4.2]
                 def change
-            -     create_table :submission_view_logs do |t|
+            +     create_table :submission_view_logs, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.integer :user_id
                     t.integer :submission_id
                     t.timestamps
                   end
                 end
               end

db/migrate/20150827133841_add_last_ip_to_user.rb ¶ +1 -1

-            - class AddLastIpToUser < ActiveRecord::Migration
+            + class AddLastIpToUser < ActiveRecord::Migration[4.2]
                 def change
                   add_column :users, :last_ip, :string
                 end
               end

db/migrate/20150914090545_create_heart_beats.rb ¶ +2 -2

-            - class CreateHeartBeats < ActiveRecord::Migration
+            + class CreateHeartBeats < ActiveRecord::Migration[4.2]
                 def change
-            -     create_table :heart_beats do |t|
+            +     create_table :heart_beats, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.column 'user_id',:integer
                     t.column 'ip_address',:string
                     t.timestamps
                   end
                 end
               end

db/migrate/20150914155101_add_status_to_heart_beat.rb ¶ +1 -1

-            - class AddStatusToHeartBeat < ActiveRecord::Migration
+            + class AddStatusToHeartBeat < ActiveRecord::Migration[4.2]
                 def change
                   add_column :heart_beats, :status, :string
                 end
               end

db/migrate/20150914223258_add_more_config.rb ¶ +1 -1

-            - class AddMoreConfig < ActiveRecord::Migration
+            + class AddMoreConfig < ActiveRecord::Migration[4.2]
                 def up
                   GraderConfiguration.create key: 'right.bypass_agreement', value_type: 'boolean', value:'true', description:'When false, a check box to accept license agreement appear at login and the user must click accept'
                 end
                 def down
                 end
               end

db/migrate/20150916054105_update_heart_beat.rb ¶ +1 -1

-            - class UpdateHeartBeat < ActiveRecord::Migration
+            + class UpdateHeartBeat < ActiveRecord::Migration[4.2]
                 def up
                   GraderConfiguration.create key: 'right.heartbeat_response', value_type: 'string', value:'OK', description:'Heart beat response text'
                   add_index :heart_beats, :updated_at
                 end
                 def down
                   remove_index :heart_beats, :updated_at
                 end
               end

db/migrate/20161008050135_modify_grader_process.rb ¶ +1 -1

-            - class ModifyGraderProcess < ActiveRecord::Migration
+            + class ModifyGraderProcess < ActiveRecord::Migration[4.2]
                 def up
                   change_column :grader_processes, :host, :string
                 end
                 def down
                   change_column :grader_processes, :host, :string, limit: 20
                 end
               end

db/migrate/20161014091417_create_testcases.rb ¶ +2 -2

-            - class CreateTestcases < ActiveRecord::Migration
+            + class CreateTestcases < ActiveRecord::Migration[4.2]
                 def change
-            -     create_table :testcases do |t|
+            +     create_table :testcases, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.references :problem
                     t.integer :num
                     t.integer :group
                     t.integer :score
                     t.text :input
                     t.text :sol
                     t.timestamps
                   end
                   add_index :testcases, :problem_id
                 end
               end

db/migrate/20161031063337_add_config_view_test.rb ¶ +1 -1

-            - class AddConfigViewTest < ActiveRecord::Migration
+            + class AddConfigViewTest < ActiveRecord::Migration[4.2]
                 def up
                   GraderConfiguration.create key: 'right.view_testcase', value_type: 'boolean', value:'true', description:'When true, any user can view/download test data'
                   #uglily and dirtily and shamelessly check other config and inifialize
                   GraderConfiguration.where(key: 'right.user_hall_of_fame').first_or_create(value_type: 'boolean', value: 'false',
                                                                                             description: 'If true, any user can access hall of fame page.')
                   GraderConfiguration.where(key: 'right.multiple_ip_login').first_or_create(value_type: 'boolean', value: 'false',
                                                                                             description: 'When change from true to false, a user can login from the first IP they logged into afterward.')
                   GraderConfiguration.where(key: 'right.user_view_submission').first_or_create(value_type: 'boolean', value: 'false',
                                                                                                description: 'If true, any user can view submissions of every one.')
                 end
                 def down

db/migrate/20170123162543_change_testcase_size.rb ¶ +1 -1

-            - class ChangeTestcaseSize < ActiveRecord::Migration
+            + class ChangeTestcaseSize < ActiveRecord::Migration[4.2]
                 def change
                   change_column :testcases, :input, :text, :limit => 4294967295
                   change_column :testcases, :sol, :text, :limit => 4294967295
                 end
               end

db/migrate/20170124024527_add_view_testcase_to_problem.rb ¶ +1 -1

-            - class AddViewTestcaseToProblem < ActiveRecord::Migration
+            + class AddViewTestcaseToProblem < ActiveRecord::Migration[4.2]
                 def change
                   add_column :problems, :view_testcase, :bool
                 end
               end

db/migrate/20170310110146_add_index_to_task.rb ¶ +1 -1

-            - class AddIndexToTask < ActiveRecord::Migration
+            + class AddIndexToTask < ActiveRecord::Migration[4.2]
                 def change
                   add_index :tasks, :submission_id
                 end
               end

db/migrate/20170427070345_add_heart_beat_full.rb ¶ +1 -1

-            - class AddHeartBeatFull < ActiveRecord::Migration
+            + class AddHeartBeatFull < ActiveRecord::Migration[4.2]
                 def up
                   GraderConfiguration.create key: 'right.heartbeat_response_full', value_type: 'string', value:'RESTART', description:'Heart beat response text when user got full score (set this value to the empty string to disable this feature)'
                 end
                 def down
                 end
               end

db/migrate/20170911091143_create_groups.rb ¶ +4 -4

-            - class CreateGroups < ActiveRecord::Migration
+            + class CreateGroups < ActiveRecord::Migration[4.2]
                 def change
-            -     create_table :groups do |t|
+            +     create_table :groups, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.string :name
                     t.string :description
                   end
-            -     create_join_table :groups, :users do |t|
+            +     create_join_table :groups, :users, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     # t.index [:group_id, :user_id]
                     t.index [:user_id, :group_id]
                   end
-            -     create_join_table :problems, :groups do |t|
+            +     create_join_table :problems, :groups, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     # t.index [:problem_id, :group_id]
                     t.index [:group_id, :problem_id]
                   end
                   reversible do |change|
                     change.up do
                       GraderConfiguration.where(key: 'system.use_problem_group').first_or_create(value_type: 'boolean', value: 'false',
                                                                                                  description: 'If true, available problem to the user will be only ones associated with the group of the user');
                     end
                     change.down do
                       GraderConfiguration.where(key: 'system.use_problem_group').destroy_all

db/migrate/20170914150545_create_tags.rb ¶ +2 -2

-            - class CreateTags < ActiveRecord::Migration
+            + class CreateTags < ActiveRecord::Migration[4.2]
                 def change
-            -     create_table :tags do |t|
+            +     create_table :tags, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.string :name, null: false
                     t.text :description
                     t.boolean :public
                     t.timestamps null: false
                   end
                 end
               end

db/migrate/20170914150742_create_problem_tags.rb ¶ +2 -2

-            - class CreateProblemTags < ActiveRecord::Migration
+            + class CreateProblemTags < ActiveRecord::Migration[4.2]
                 def change
-            -     create_table :problems_tags do |t|
+            +     create_table :problems_tags, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci" do |t|
                     t.references :problem, index: true, foreign_key: true
                     t.references :tag, index: true, foreign_key: true
                     t.index [:problem_id,:tag_id], unique: true
                   end
                 end
               end

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r824:feb677289536 - Mon, 24 Jan 2022 11:10:22 - 129 files changed: 850 inserted, 594 deleted

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r824:feb677289536 - Mon, 24 Jan 2022 11:10:22 - 129 files changed: 850 inserted, 594 deleted

Commit `r824:feb677289536` public