Feature: Auto-Completion in Source Code

+ allow flags for exercises

app/assets/javascripts/application.js

@@ -24,4 +24,5 @@
 //= require bootstrap_pagedown
 //= require markdown.converter
 //= require markdown.sanitizer
-//= require markdown.editor
+//= require markdown.editor
+//= require ../../../vendor/assets/javascripts/ace/ext-language_tools

app/assets/javascripts/editor/editor.js.erb

@@ -221,6 +221,17 @@ var CodeOceanEditor = {
       editor.setReadOnly($(element).data('read-only') !== undefined);
       editor.setShowPrintMargin(false);
       editor.setTheme(this.THEME);
+
+      // set options for autocompletion
+      if($(element).data('allow-auto-completion')){
+        editor.setOptions({
+          enableBasicAutocompletion: true,
+          enableSnippets: false,
+          enableLiveAutocompletion: true
+        });
+      }
+
+
       editor.commands.bindKey("ctrl+alt+0", null);
       this.editors.push(editor);
       this.editor_for_file.set($(element).parent().data('filename'), editor);

app/controllers/exercises_controller.rb

@@ -118,7 +118,7 @@ class ExercisesController < ApplicationController
   private :user_by_code_harbor_token
 
   def exercise_params
-    params[:exercise].permit(:description, :execution_environment_id, :file_id, :instructions, :public, :hide_file_tree, :allow_file_creation, :title, files_attributes: file_attributes).merge(user_id: current_user.id, user_type: current_user.class.name)
+    params[:exercise].permit(:description, :execution_environment_id, :file_id, :instructions, :public, :hide_file_tree, :allow_file_creation, :allow_auto_completion, :title, files_attributes: file_attributes).merge(user_id: current_user.id, user_type: current_user.class.name)
   end
   private :exercise_params
 

app/views/exercises/_editor_frame.html.slim

@@ -12,4 +12,4 @@
         = link_to(file.native_file.file.name_with_extension, file.native_file.url)
   - else
     .editor-content.hidden data-file-id=file.ancestor_id = file.content
-    .editor data-file-id=file.ancestor_id data-indent-size=file.file_type.indent_size data-mode=file.file_type.editor_mode data-read-only=file.read_only data-id=file.id
+    .editor data-file-id=file.ancestor_id data-indent-size=file.file_type.indent_size data-mode=file.file_type.editor_mode data-read-only=file.read_only data-allow-auto-completion=exercise.allow_auto_completion.to_s data-id=file.id

app/views/exercises/_form.html.slim

@@ -28,6 +28,10 @@
     label
       = f.check_box(:allow_file_creation)
       = t('activerecord.attributes.exercise.allow_file_creation')
+  .checkbox
+    label
+      = f.check_box(:allow_auto_completion)
+      = t('activerecord.attributes.exercise.allow_auto_completion')
   h2 = t('activerecord.attributes.exercise.files')
   ul#files.list-unstyled.panel-group
     = f.fields_for :files do |files_form|

app/views/exercises/show.html.slim

@@ -16,6 +16,7 @@ h1
 = row(label: 'exercise.public', value: @exercise.public?)
 = row(label: 'exercise.hide_file_tree', value: @exercise.hide_file_tree?)
 = row(label: 'exercise.allow_file_creation', value: @exercise.allow_file_creation?)
+= row(label: 'exercise.allow_auto_completion', value: @exercise.allow_auto_completion?)
 = row(label: 'exercise.embedding_parameters') do
   = content_tag(:input, nil, class: 'form-control', readonly: true, value: embedding_parameters(@exercise))
 

config/locales/de.yml

@@ -36,6 +36,7 @@ de:
         public: Öffentlich
         title: Titel
         user: Autor
+        allow_auto_completion: "Autovervollständigung aktivieren"
         allow_file_creation: "Dateierstellung erlauben"
       external_user:
         consumer: Konsument

config/locales/en.yml

@@ -36,6 +36,7 @@ en:
         public: Public
         title: Title
         user: Author
+        allow_auto_completion: "Allow auto completion"
         allow_file_creation: "Allow file creation"
       external_user:
         consumer: Consumer

db/migrate/20160907123009_add_allow_auto_completion_to_exercises.rb

@@ -0,0 +1,5 @@
+class AddAllowAutoCompletionToExercises < ActiveRecord::Migration
+  def change
+    add_column :exercises, :allow_auto_completion, :boolean, default: false
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160704143402) do
+ActiveRecord::Schema.define(version: 20160907123009) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -74,7 +74,6 @@ ActiveRecord::Schema.define(version: 20160704143402) do
     t.integer  "file_type_id"
     t.integer  "memory_limit"
     t.boolean  "network_enabled"
-
   end
 
   create_table "exercises", force: true do |t|
@@ -90,6 +89,7 @@ ActiveRecord::Schema.define(version: 20160704143402) do
     t.string   "token"
     t.boolean  "hide_file_tree"
     t.boolean  "allow_file_creation"
+    t.boolean  "allow_auto_completion",    default: false
   end
 
   create_table "external_users", force: true do |t|