updated rails from 4.1.13 to 4.2.5. This is required for rails to make use of new features in postgres 9.5

@Ralf
TODO: migration /Users/groucho/Documents/HPI/workspace/Xikolo-CodeOcean/codeocean/db/migrate/20160204111716_add_user_to_code_harbor_link.rb
is broken. A reference is made to table users which does not exist.
Workaround: run rake db:schema:load before running db:migrate. Still this should be fixed.

Gemfile

@@ -21,7 +21,7 @@ gem 'pg', platform: :ruby
 gem 'pry-byebug'
 gem 'puma', '~> 2.15.3'
 gem 'pundit'
-gem 'rails', '~> 4.1.13'
+gem 'rails', '4.2.5'
 gem 'rails-i18n', '~> 4.0.0'
 gem 'ransack'
 gem 'rubytree'

Gemfile.lock

@@ -2,40 +2,49 @@ GEM
   remote: https://rubygems.org/
   specs:
     ZenTest (4.11.0)
-    actionmailer (4.1.14.1)
+    actionmailer (4.2.5)
-      actionpack (= 4.1.14.1)
+      actionpack (= 4.2.5)
-      actionview (= 4.1.14.1)
+      actionview (= 4.2.5)
+      activejob (= 4.2.5)
       mail (~> 2.5, >= 2.5.4)
-    actionpack (4.1.14.1)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
-      actionview (= 4.1.14.1)
+    actionpack (4.2.5)
-      activesupport (= 4.1.14.1)
+      actionview (= 4.2.5)
-      rack (~> 1.5.2)
+      activesupport (= 4.2.5)
+      rack (~> 1.6)
       rack-test (~> 0.6.2)
-    actionview (4.1.14.1)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
-      activesupport (= 4.1.14.1)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    actionview (4.2.5)
+      activesupport (= 4.2.5)
       builder (~> 3.1)
       erubis (~> 2.7.0)
-    activemodel (4.1.14.1)
+      rails-dom-testing (~> 1.0, >= 1.0.5)
-      activesupport (= 4.1.14.1)
+      rails-html-sanitizer (~> 1.0, >= 1.0.2)
+    activejob (4.2.5)
+      activesupport (= 4.2.5)
+      globalid (>= 0.3.0)
+    activemodel (4.2.5)
+      activesupport (= 4.2.5)
       builder (~> 3.1)
-    activerecord (4.1.14.1)
+    activerecord (4.2.5)
-      activemodel (= 4.1.14.1)
+      activemodel (= 4.2.5)
-      activesupport (= 4.1.14.1)
+      activesupport (= 4.2.5)
-      arel (~> 5.0.0)
+      arel (~> 6.0)
     activerecord-jdbc-adapter (1.3.19)
       activerecord (>= 2.2)
     activerecord-jdbcpostgresql-adapter (1.3.19)
       activerecord-jdbc-adapter (~> 1.3.19)
       jdbc-postgres (>= 9.1)
-    activesupport (4.1.14.1)
+    activesupport (4.2.5)
-      i18n (~> 0.6, >= 0.6.9)
+      i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
-      thread_safe (~> 0.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    arel (5.0.1.20140414130214)
+    arel (6.0.4)
-    ast (2.2.0)
+    ast (2.3.0)
     autotest-rails (4.2.1)
       ZenTest (~> 4.5)
     bcrypt (3.1.10)
@@ -97,6 +106,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     concurrent-ruby (1.0.2)
+    concurrent-ruby (1.0.2-java)
     concurrent-ruby-ext (1.0.2)
       concurrent-ruby (~> 1.0.2)
     d3-rails (3.5.11)
@@ -128,6 +138,8 @@ GEM
     ffi (1.9.10)
     ffi (1.9.10-java)
     forgery (0.6.0)
+    globalid (0.3.7)
+      activesupport (>= 4.1.0)
     highline (1.7.8)
     hike (1.2.3)
     http-cookie (1.0.2)
@@ -150,13 +162,15 @@ GEM
     json (1.8.3-java)
     jwt (1.5.1)
     kramdown (1.9.0)
-    mail (2.6.3)
+    loofah (2.0.3)
-      mime-types (>= 1.16, < 3)
+      nokogiri (>= 1.5.9)
+    mail (2.6.4)
+      mime-types (>= 1.16, < 4)
     method_source (0.8.2)
-    mime-types (2.99)
+    mime-types (2.99.3)
-    mini_portile2 (2.0.0)
+    mini_portile2 (2.1.0)
-    minitest (5.9.0)
+    minitest (5.10.1)
-    multi_json (1.11.2)
+    multi_json (1.12.1)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
     net-scp (1.2.1)
@@ -164,9 +178,9 @@ GEM
     net-ssh (3.0.2)
     netrc (0.10.3)
     newrelic_rpm (3.14.3.313)
-    nokogiri (1.6.7.2)
+    nokogiri (1.7.0)
-      mini_portile2 (~> 2.0.0.rc2)
+      mini_portile2 (~> 2.1.0)
-    nokogiri (1.6.7.2-java)
+    nokogiri (1.7.0-java)
     nyan-cat-formatter (0.11)
       rspec (>= 2.99, >= 2.14.2, < 4)
     oauth (0.4.7)
@@ -178,7 +192,7 @@ GEM
       rack (>= 1.2, < 3)
     pagedown-rails (1.1.4)
       railties (> 3.1)
-    parser (2.3.0.6)
+    parser (2.3.3.1)
       ast (~> 2.2)
     pg (0.18.4)
     polyamorous (1.3.0)
@@ -200,31 +214,40 @@ GEM
     puma (2.15.3-java)
     pundit (1.1.0)
       activesupport (>= 3.0.0)
-    rack (1.5.5)
+    rack (1.6.5)
     rack-mini-profiler (0.10.1)
       rack (>= 1.2.0)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rails (4.1.14.1)
+    rails (4.2.5)
-      actionmailer (= 4.1.14.1)
+      actionmailer (= 4.2.5)
-      actionpack (= 4.1.14.1)
+      actionpack (= 4.2.5)
-      actionview (= 4.1.14.1)
+      actionview (= 4.2.5)
-      activemodel (= 4.1.14.1)
+      activejob (= 4.2.5)
-      activerecord (= 4.1.14.1)
+      activemodel (= 4.2.5)
-      activesupport (= 4.1.14.1)
+      activerecord (= 4.2.5)
+      activesupport (= 4.2.5)
       bundler (>= 1.3.0, < 2.0)
-      railties (= 4.1.14.1)
+      railties (= 4.2.5)
-      sprockets-rails (~> 2.0)
+      sprockets-rails
+    rails-deprecated_sanitizer (1.0.3)
+      activesupport (>= 4.2.0.alpha)
+    rails-dom-testing (1.0.8)
+      activesupport (>= 4.2.0.beta, < 5.0)
+      nokogiri (~> 1.6)
+      rails-deprecated_sanitizer (>= 1.0.1)
+    rails-html-sanitizer (1.0.3)
+      loofah (~> 2.0)
     rails-i18n (4.0.8)
       i18n (~> 0.7)
       railties (~> 4.0)
-    railties (4.1.14.1)
+    railties (4.2.5)
-      actionpack (= 4.1.14.1)
+      actionpack (= 4.2.5)
-      activesupport (= 4.1.14.1)
+      activesupport (= 4.2.5)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rainbow (2.1.0)
+    rainbow (2.2.1)
-    rake (10.5.0)
+    rake (12.0.0)
     ransack (1.7.0)
       actionpack (>= 3.0)
       activerecord (>= 3.0)
@@ -243,7 +266,7 @@ GEM
       rspec-mocks (~> 3.4.0)
     rspec-autotest (1.0.0)
       rspec-core (>= 2.99.0.beta1, < 4.0.0)
-    rspec-core (3.4.2)
+    rspec-core (3.4.4)
       rspec-support (~> 3.4.0)
     rspec-expectations (3.4.0)
       diff-lcs (>= 1.2.0, < 2.0)
@@ -260,14 +283,15 @@ GEM
       rspec-mocks (~> 3.4.0)
       rspec-support (~> 3.4.0)
     rspec-support (3.4.1)
-    rubocop (0.37.2)
+    rubocop (0.46.0)
-      parser (>= 2.3.0.4, < 3.0)
+      parser (>= 2.3.1.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (~> 0.3)
+      unicode-display_width (~> 1.0, >= 1.0.1)
-    rubocop-rspec (1.4.0)
+    rubocop-rspec (1.9.0)
-    ruby-progressbar (1.7.5)
+      rubocop (>= 0.42.0)
+    ruby-progressbar (1.8.1)
     rubytree (0.9.7)
       json (~> 1.8)
       structured_warnings (~> 0.2)
@@ -316,7 +340,7 @@ GEM
       net-ssh (>= 2.8.0)
     structured_warnings (0.2.0)
     temple (0.7.6)
-    thor (0.19.1)
+    thor (0.19.4)
     thread_safe (0.3.5)
     thread_safe (0.3.5-java)
     tilt (1.4.1)
@@ -334,7 +358,7 @@ GEM
       unf_ext
     unf (0.1.4-java)
     unf_ext (0.0.7.1)
-    unicode-display_width (0.3.1)
+    unicode-display_width (1.1.2)
     web-console (2.3.0)
       activemodel (>= 4.0)
       binding_of_caller (>= 0.7.2)
@@ -395,7 +419,7 @@ DEPENDENCIES
   puma (~> 2.15.3)
   pundit
   rack-mini-profiler
-  rails (~> 4.1.13)
+  rails (= 4.2.5)
   rails-i18n (~> 4.0.0)
   rake
   ransack
@@ -419,3 +443,6 @@ DEPENDENCIES
   uglifier (>= 1.3.0)
   web-console (~> 2.0)
   will_paginate (~> 3.0)
+
+BUNDLED WITH
+   1.13.6

app/controllers/concerns/lti.rb

@@ -104,10 +104,8 @@ module Lti
     lti_parameter = LtiParameter.where(consumers_id: session[:consumer_id],
                                        external_user_id: session[:external_user_id],
                                        exercises_id: exercise_id).first
-    lti_parameters = JSON.parse(lti_parameter.lti_parameters)
-
     consumer = Consumer.find_by(id: session[:consumer_id])
-    provider = build_tool_provider(consumer: consumer, parameters: lti_parameters)
+    provider = build_tool_provider(consumer: consumer, parameters: lti_parameter.lti_parameters)
     # provider = build_tool_provider(consumer: Consumer.find_by(id: session[:consumer_id]), parameters: session[:lti_parameters])
     if provider.nil?
       {status: 'error'}

app/controllers/exercises_controller.rb

@@ -162,12 +162,10 @@ class ExercisesController < ApplicationController
                                        external_user_id: session[:external_user_id],
                                        exercises_id: @submission.exercise_id).first
 
-    lti_parameters = JSON.parse(lti_parameter.lti_parameters)
-
     path = lti_return_path(consumer_id: session[:consumer_id],
                            submission_id: @submission.id,
                            url: consumer_return_url(build_tool_provider(consumer: Consumer.find_by(id: session[:consumer_id]),
-                                                                        parameters: lti_parameters)))
+                                                                        parameters: lti_parameter.lti_parameters)))
                                                                         # parameters: session[:lti_parameters])))
     respond_to do |format|
       format.html { redirect_to(path) }

bin/rails

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

bin/setup

@@ -0,0 +1,29 @@
+#!/usr/bin/env ruby
+require 'pathname'
+
+# path to your application root.
+APP_ROOT = Pathname.new File.expand_path('../../',  __FILE__)
+
+Dir.chdir APP_ROOT do
+  # This script is a starting point to setup your application.
+  # Add necessary setup steps to this file:
+
+  puts "== Installing dependencies =="
+  system "gem install bundler --conservative"
+  system "bundle check || bundle install"
+
+  # puts "\n== Copying sample files =="
+  # unless File.exist?("config/database.yml")
+  #   system "cp config/database.yml.sample config/database.yml"
+  # end
+
+  puts "\n== Preparing database =="
+  system "bin/rake db:setup"
+
+  puts "\n== Removing old logs and tempfiles =="
+  system "rm -f log/*"
+  system "rm -rf tmp/cache"
+
+  puts "\n== Restarting application server =="
+  system "touch tmp/restart.txt"
+end

config/application.rb

@@ -1,13 +1,6 @@
 require File.expand_path('../boot', __FILE__)
 
-# Pick the frameworks you want:
+require 'rails/all'
-require "active_model/railtie"
-require "active_record/railtie"
-require "action_controller/railtie"
-require "action_mailer/railtie"
-require "action_view/railtie"
-require "sprockets/railtie"
-# require "rails/test_unit/railtie"
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.
@@ -21,17 +14,22 @@ module CodeOcean
 
     # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
     # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
-    config.time_zone = 'Berlin'
+    config.time_zone = 'UTC'
 
     # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
     # config.i18n.default_locale = :de
     config.i18n.available_locales = [:de, :en]
 
+    # Do not swallow errors in after_commit/after_rollback callbacks.
+    config.active_record.raise_in_transactional_callbacks = true
+
     config.autoload_paths << Rails.root.join('lib')
     config.eager_load_paths << Rails.root.join('lib')
     config.assets.precompile += %w( markdown-buttons.png )
 
+    config.active_record.schema_format = :sql
+
     case (RUBY_ENGINE)
       when 'ruby'
         # ...
@@ -43,5 +41,3 @@ module CodeOcean
     end
   end
 end
-
-Rails.application.config.assets.precompile += %w( markdown-buttons.png )

config/boot.rb

@@ -1,4 +1,3 @@
-# Set up gems listed in the Gemfile.
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
 
-require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])
+require 'bundler/setup' # Set up gems listed in the Gemfile.

config/environments/development.rb

@@ -1,7 +1,8 @@
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
-  config.web_console.whitelisted_ips = '192.168.0.0/16'
+  config.web_console.whitelisted_ips = '192.168.0.0/16'  
+  
   # In the development environment your application's code is reloaded on
   # every request. 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.
@@ -13,8 +14,8 @@ Rails.application.configure do
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
-
+  
-  config.action_mailer.perform_deliveries = true
+  config.action_mailer.perform_deliveries = false
 
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false
@@ -25,12 +26,21 @@ Rails.application.configure do
   # Raise an error on page load if there are pending migrations.
   config.active_record.migration_error = :page_load
 
+  # 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
+
+  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
+  # yet still be able to expire them through the digest params.
+  config.assets.digest = true
+
   # Adds additional error checking when serving assets at runtime.
   # Checks for improperly declared sprockets dependencies.
   # Raises helpful error messages.
   config.assets.raise_runtime_errors = true
 
-  # Raise errors for missing translations.
+  # Raises error for missing translations
   config.action_view.raise_on_missing_translations = true
 
   BetterErrors::Middleware.allow_ip! ENV['TRUSTED_IP'] if ENV['TRUSTED_IP']

config/environments/production.rb

@@ -16,11 +16,13 @@ Rails.application.configure do
 
   # Enable Rack::Cache to put a simple HTTP cache in front of your application
   # Add `rack-cache` to your Gemfile before enabling this.
-  # For large-scale production use, consider using a caching reverse proxy like nginx, varnish or squid.
+  # For large-scale production use, consider using a caching reverse proxy like
+  # NGINX, varnish or squid.
   # config.action_dispatch.rack_cache = true
 
-  # Disable Rails's static asset server (Apache or nginx will already do this).
+  # Disable serving static files from the `/public` folder by default since
-  config.serve_static_assets = false
+  # Apache or NGINX already handles this.
+  config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
   # Compress JavaScripts and CSS.
   config.assets.js_compressor = :uglifier
@@ -29,20 +31,21 @@ Rails.application.configure do
   # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false
 
-  # Generate digests for assets URLs.
+  # Asset digests allow you to set far-future HTTP expiration dates on all assets,
+  # yet still be able to expire them through the digest params.
   config.assets.digest = true
 
-  # Version of your assets, change this if you want to expire all your assets.
+  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
-  config.assets.version = '1.0'
 
   # 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-Sendfile' # for Apache
-  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   # config.force_ssl = true
 
-  # Set to :debug to see everything in the log.
+  # Use the lowest log level to ensure availability of diagnostic information
+  # when problems arise.
   config.log_level = :error
 
   # Prepend all log lines with the following tags.
@@ -55,11 +58,7 @@ Rails.application.configure do
   # config.cache_store = :mem_cache_store
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
-  # config.action_controller.asset_host = "http://assets.example.com"
+  # config.action_controller.asset_host = 'http://assets.example.com'
-
-  # Precompile additional assets.
-  # application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
-  # config.assets.precompile += %w( search.js )
 
   # 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.
@@ -72,9 +71,6 @@ Rails.application.configure do
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
 
-  # Disable automatic flushing of the log to improve performance.
-  # config.autoflush_log = false
-
   # Use default logging formatter so that PID and timestamp are not suppressed.
   config.log_formatter = ::Logger::Formatter.new
 

config/environments/test.rb

@@ -12,8 +12,8 @@ Rails.application.configure do
   # preloads Rails for running tests, you may have to set it to true.
   config.eager_load = false
 
-  # Configure static asset server for tests with Cache-Control for performance.
+  # Configure static file server for tests with Cache-Control for performance.
-  config.serve_static_assets  = true
+  config.serve_static_files   = true
   config.static_cache_control = 'public, max-age=3600'
 
   # Show full error reports and disable caching.
@@ -31,6 +31,9 @@ Rails.application.configure do
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
+  # Randomize the order test cases are executed.
+  config.active_support.test_order = :random
+
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
 

config/initializers/assets.rb

@@ -0,0 +1,12 @@
+# 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'
+
+# Add additional assets to the asset load path
+# Rails.application.config.assets.paths << Emoji.images_path
+
+# Precompile additional assets.
+# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
+# Rails.application.config.assets.precompile += %w( search.js )
+Rails.application.config.assets.precompile += %w( markdown-buttons.png )

config/initializers/session_store.rb

@@ -1,3 +1,3 @@
 # Be sure to restart your server when you modify this file.
 
-Rails.application.config.session_store :cookie_store, key: '_hands-on-programming_session'
+Rails.application.config.session_store :cookie_store, key: '_code_ocean_session'

config/locales/en.yml

@@ -1,3 +1,24 @@
+# Files in the config/locales directory are used for internationalization
+# and are automatically loaded by Rails. If you want to use locales other
+# than English, add the necessary files in this directory.
+#
+# To use the locales, use `I18n.t`:
+#
+#     I18n.t 'hello'
+#
+# In views, this is aliased to just `t`:
+#
+#     <%= t('hello') %>
+#
+# To use a different locale, set it with `I18n.locale`:
+#
+#     I18n.locale = :es
+#
+# This would use the information in config/locales/es.yml.
+#
+# To learn more, please read the Rails Internationalization guide
+# available at http://guides.rubyonrails.org/i18n.html.
+
 en:
   activerecord:
     attributes:
@@ -466,3 +487,4 @@ en:
     previous_label: '&#8592; Previous Page'
   file_template:
     no_template_label: "Empty File"
+

config/routes.rb

@@ -3,7 +3,7 @@ FILENAME_REGEXP = /[\w\.]+/ unless Kernel.const_defined?(:FILENAME_REGEXP)
 Rails.application.routes.draw do
   resources :file_templates do
     collection do
-      get 'by_file_type/:file_type_id', as: :by_file_type, to: :by_file_type
+      get 'by_file_type/:file_type_id', as: :by_file_type, action: :by_file_type
     end
   end
   resources :code_harbor_links
@@ -42,7 +42,7 @@ Rails.application.routes.draw do
   resources :execution_environments do
     member do
       get :shell
-      post 'shell', as: :execute_command, to: :execute_command
+      post 'shell', as: :execute_command, action: :execute_command
       get :statistics
     end
 
@@ -94,14 +94,14 @@ Rails.application.routes.draw do
 
   resources :submissions, only: [:create, :index, :show] do
     member do
-      get 'download', as: :download, to: :download
+      get 'download', as: :download, action: :download
-      get 'download/:filename', as: :download_file, constraints: {filename: FILENAME_REGEXP}, to: :download_file
+      get 'download/:filename', as: :download_file, constraints: {filename: FILENAME_REGEXP}, action: :download_file
-      get 'render/:filename', as: :render, constraints: {filename: FILENAME_REGEXP}, to: :render_file
+      get 'render/:filename', as: :render, constraints: {filename: FILENAME_REGEXP}, action: :render_file
-      get 'run/:filename', as: :run, constraints: {filename: FILENAME_REGEXP}, to: :run
+      get 'run/:filename', as: :run, constraints: {filename: FILENAME_REGEXP}, action: :run
       get :score
       get :statistics
       post :stop
-      get 'test/:filename', as: :test, constraints: {filename: FILENAME_REGEXP}, to: :test
+      get 'test/:filename', as: :test, constraints: {filename: FILENAME_REGEXP}, action: :test
     end
   end
 

db/migrate/20161214144837_create_lti_parameters.rb

@@ -4,9 +4,9 @@ class CreateLtiParameters < ActiveRecord::Migration
       t.string :external_user_id
       t.belongs_to :consumers
       t.belongs_to :exercises
-      t.column :lti_parameters, :jsonb
+      t.jsonb :lti_parameters, null: false, default: '{}'
 
       t.timestamps
     end
   end
-end
+end

db/schema.rb

@@ -11,13 +11,13 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20161216131239) do
+ActiveRecord::Schema.define(version: 20161214144837) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
-  create_table "code_harbor_links", force: true do |t|
+  create_table "code_harbor_links", force: :cascade do |t|
-    t.string   "oauth2token"
+    t.string   "oauth2token", limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
     t.integer  "user_id"
@@ -25,10 +25,10 @@ ActiveRecord::Schema.define(version: 20161216131239) do
 
   add_index "code_harbor_links", ["user_id"], name: "index_code_harbor_links_on_user_id", using: :btree
 
-  create_table "comments", force: true do |t|
+  create_table "comments", force: :cascade do |t|
     t.integer  "user_id"
     t.integer  "file_id"
-    t.string   "user_type"
+    t.string   "user_type",  limit: 255
     t.integer  "row"
     t.integer  "column"
     t.text     "text"
@@ -39,15 +39,15 @@ ActiveRecord::Schema.define(version: 20161216131239) do
   add_index "comments", ["file_id"], name: "index_comments_on_file_id", using: :btree
   add_index "comments", ["user_id"], name: "index_comments_on_user_id", using: :btree
 
-  create_table "consumers", force: true do |t|
+  create_table "consumers", force: :cascade do |t|
-    t.string   "name"
+    t.string   "name",         limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "oauth_key"
+    t.string   "oauth_key",    limit: 255
-    t.string   "oauth_secret"
+    t.string   "oauth_secret", limit: 255
   end
 
-  create_table "errors", force: true do |t|
+  create_table "errors", force: :cascade do |t|
     t.integer  "execution_environment_id"
     t.text     "message"
     t.datetime "created_at"
@@ -57,123 +57,123 @@ ActiveRecord::Schema.define(version: 20161216131239) do
 
   add_index "errors", ["submission_id"], name: "index_errors_on_submission_id", using: :btree
 
-  create_table "execution_environments", force: true do |t|
+  create_table "execution_environments", force: :cascade do |t|
-    t.string   "docker_image"
+    t.string   "docker_image",             limit: 255
-    t.string   "name"
+    t.string   "name",                     limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "run_command"
+    t.string   "run_command",              limit: 255
-    t.string   "test_command"
+    t.string   "test_command",             limit: 255
-    t.string   "testing_framework"
+    t.string   "testing_framework",        limit: 255
     t.text     "help"
-    t.string   "exposed_ports"
+    t.string   "exposed_ports",            limit: 255
     t.integer  "permitted_execution_time"
     t.integer  "user_id"
-    t.string   "user_type"
+    t.string   "user_type",                limit: 255
     t.integer  "pool_size"
     t.integer  "file_type_id"
     t.integer  "memory_limit"
     t.boolean  "network_enabled"
   end
 
-  create_table "exercises", force: true do |t|
+  create_table "exercises", force: :cascade do |t|
     t.text     "description"
     t.integer  "execution_environment_id"
-    t.string   "title"
+    t.string   "title",                    limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
     t.integer  "user_id"
     t.text     "instructions"
     t.boolean  "public"
-    t.string   "user_type"
+    t.string   "user_type",                limit: 255
-    t.string   "token"
+    t.string   "token",                    limit: 255
     t.boolean  "hide_file_tree"
     t.boolean  "allow_file_creation"
-    t.boolean  "allow_auto_completion",    default: false
+    t.boolean  "allow_auto_completion",                default: false
   end
 
-  create_table "external_users", force: true do |t|
+  create_table "external_users", force: :cascade do |t|
     t.integer  "consumer_id"
-    t.string   "email"
+    t.string   "email",       limit: 255
-    t.string   "external_id"
+    t.string   "external_id", limit: 255
-    t.string   "name"
+    t.string   "name",        limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
-  create_table "file_templates", force: true do |t|
+  create_table "file_templates", force: :cascade do |t|
-    t.string   "name"
+    t.string   "name",         limit: 255
     t.text     "content"
     t.integer  "file_type_id"
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
-  create_table "file_types", force: true do |t|
+  create_table "file_types", force: :cascade do |t|
-    t.string   "editor_mode"
+    t.string   "editor_mode",    limit: 255
-    t.string   "file_extension"
+    t.string   "file_extension", limit: 255
     t.integer  "indent_size"
-    t.string   "name"
+    t.string   "name",           limit: 255
     t.integer  "user_id"
     t.datetime "created_at"
     t.datetime "updated_at"
     t.boolean  "executable"
     t.boolean  "renderable"
-    t.string   "user_type"
+    t.string   "user_type",      limit: 255
     t.boolean  "binary"
   end
 
-  create_table "files", force: true do |t|
+  create_table "files", force: :cascade do |t|
     t.text     "content"
     t.integer  "context_id"
-    t.string   "context_type"
+    t.string   "context_type",     limit: 255
     t.integer  "file_id"
     t.integer  "file_type_id"
     t.boolean  "hidden"
-    t.string   "name"
+    t.string   "name",             limit: 255
     t.boolean  "read_only"
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "native_file"
+    t.string   "native_file",      limit: 255
-    t.string   "role"
+    t.string   "role",             limit: 255
-    t.string   "hashed_content"
+    t.string   "hashed_content",   limit: 255
-    t.string   "feedback_message"
+    t.string   "feedback_message", limit: 255
     t.float    "weight"
-    t.string   "path"
+    t.string   "path",             limit: 255
     t.integer  "file_template_id"
   end
 
   add_index "files", ["context_id", "context_type"], name: "index_files_on_context_id_and_context_type", using: :btree
 
-  create_table "hints", force: true do |t|
+  create_table "hints", force: :cascade do |t|
     t.integer  "execution_environment_id"
-    t.string   "locale"
+    t.string   "locale",                   limit: 255
     t.text     "message"
-    t.string   "name"
+    t.string   "name",                     limit: 255
-    t.string   "regular_expression"
+    t.string   "regular_expression",       limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
   end
 
-  create_table "internal_users", force: true do |t|
+  create_table "internal_users", force: :cascade do |t|
     t.integer  "consumer_id"
-    t.string   "email"
+    t.string   "email",                           limit: 255
-    t.string   "name"
+    t.string   "name",                            limit: 255
-    t.string   "role"
+    t.string   "role",                            limit: 255
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "crypted_password"
+    t.string   "crypted_password",                limit: 255
-    t.string   "salt"
+    t.string   "salt",                            limit: 255
-    t.integer  "failed_logins_count",             default: 0
+    t.integer  "failed_logins_count",                         default: 0
     t.datetime "lock_expires_at"
-    t.string   "unlock_token"
+    t.string   "unlock_token",                    limit: 255
-    t.string   "remember_me_token"
+    t.string   "remember_me_token",               limit: 255
     t.datetime "remember_me_token_expires_at"
-    t.string   "reset_password_token"
+    t.string   "reset_password_token",            limit: 255
     t.datetime "reset_password_token_expires_at"
     t.datetime "reset_password_email_sent_at"
-    t.string   "activation_state"
+    t.string   "activation_state",                limit: 255
-    t.string   "activation_token"
+    t.string   "activation_token",                limit: 255
     t.datetime "activation_token_expires_at"
   end
 
@@ -182,29 +182,38 @@ ActiveRecord::Schema.define(version: 20161216131239) do
   add_index "internal_users", ["remember_me_token"], name: "index_internal_users_on_remember_me_token", using: :btree
   add_index "internal_users", ["reset_password_token"], name: "index_internal_users_on_reset_password_token", using: :btree
 
-  create_table "request_for_comments", force: true do |t|
+  create_table "lti_parameters", force: :cascade do |t|
-    t.integer  "user_id",       null: false
+    t.string   "external_user_id"
-    t.integer  "exercise_id",   null: false
+    t.integer  "consumers_id"
-    t.integer  "file_id",       null: false
+    t.integer  "exercises_id"
+    t.jsonb    "lti_parameters",   default: {}, null: false
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "user_type"
+  end
+
+  create_table "request_for_comments", force: :cascade do |t|
+    t.integer  "user_id",                   null: false
+    t.integer  "exercise_id",               null: false
+    t.integer  "file_id",                   null: false
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.string   "user_type",     limit: 255
     t.text     "question"
     t.boolean  "solved"
     t.integer  "submission_id"
   end
 
-  create_table "submissions", force: true do |t|
+  create_table "submissions", force: :cascade do |t|
     t.integer  "exercise_id"
     t.float    "score"
     t.integer  "user_id"
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.string   "cause"
+    t.string   "cause",       limit: 255
-    t.string   "user_type"
+    t.string   "user_type",   limit: 255
   end
 
-  create_table "testruns", force: true do |t|
+  create_table "testruns", force: :cascade do |t|
     t.boolean  "passed"
     t.text     "output"
     t.integer  "file_id"

debian_installer/setup_debian_vm.sh

@@ -77,8 +77,8 @@ debian_installer/setup_debian_7_create_tables.sh
 
 # Protocol TCP Host port 3030, guest port 3000, name CodeOcean, other left blank.
 # That's all! 
-# Start Puma server on VM
+# Start Puma server on VM (since we upgraded to rails 4.2.5, it is necessary to specify the address here as well. Otherwise, we can't connect from the host machine)
-# rails s -p 8080 
+# rails s -b 0.0.0.0 -p 8080 
 
 # To connect to Ruby app use 
 #http://127.0.0.1:3030