Add CommunitySolution

* Also slightly refactor some JS files

app/assets/javascripts/community_solution.js

@@ -0,0 +1,27 @@
+$(document).on('turbolinks:load', function() {
+
+    if ($.isController('community_solutions') && $('#community-solution-editor').isPresent()) {
+        CodeOceanEditor.sendEvents = false;
+        CodeOceanEditor.editors = [];
+        CodeOceanEditor.initializeDescriptionToggle();
+        CodeOceanEditor.configureEditors();
+        CodeOceanEditor.initializeEditors();
+        CodeOceanEditor.initializeEditors(true);
+        CodeOceanEditor.initializeFileTree();
+        CodeOceanEditor.initializeFileTree(true);
+        CodeOceanEditor.showFirstFile();
+        CodeOceanEditor.showFirstFile(true);
+        CodeOceanEditor.resizeAceEditors();
+        CodeOceanEditor.resizeAceEditors(true);
+
+        $.extend(
+            CodeOceanEditor,
+            CodeOceanEditorAJAX,
+            CodeOceanEditorSubmissions
+        )
+
+        $('#submit').one('click', CodeOceanEditorSubmissions.submitCode.bind(CodeOceanEditor));
+        $('#accept').one('click', CodeOceanEditorSubmissions.submitCode.bind(CodeOceanEditor));
+    }
+
+});

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

@@ -15,7 +15,7 @@ var CodeOceanEditor = {
     ENTER_KEY_CODE: 13,
 
     //Request-For-Comments-Configuration
-    REQUEST_FOR_COMMENTS_DELAY: 3 * 60 * 1000,
+    REQUEST_FOR_COMMENTS_DELAY: 0,
     REQUEST_TOOLTIP_TIME: 5000,
 
     editors: [],
@@ -140,20 +140,37 @@ var CodeOceanEditor = {
         }
     },
 
-    showFirstFile: function () {
-        var frame = $('.frame[data-role="main_file"]').isPresent() ? $('.frame[data-role="main_file"]') : $('.frame').first();
-        var file_id = frame.find('.editor').data('file-id');
+    showFirstFile: function (own_solution = false) {
+        let frame;
+        let filetree;
+        let editorSelector;
+        if (own_solution) {
+            frame = $('.own-frame[data-role="main_file"]').isPresent() ? $('.own-frame[data-role="main_file"]') : $('.own-frame').first();
+            filetree = $('#own-files');
+            editorSelector = '.own-editor';
+        } else {
+            frame = $('.frame[data-role="main_file"]').isPresent() ? $('.frame[data-role="main_file"]') : $('.frame').first();
+            filetree = $('#files');
+            editorSelector = '.editor';
+        }
+
+        var file_id = frame.find(editorSelector).data('file-id');
         this.setActiveFile(frame.data('filename'), file_id);
-        var filetree = $('#files');
         this.selectFileInJsTree(filetree, file_id);
         this.showFrame(frame);
         this.toggleButtonStates();
     },
 
     showFrame: function (frame) {
+        if (frame.hasClass('own-frame')) {
+            $('.own-frame').hide();
+        } else {
+            $('.frame').hide();
+        }
+
         this.active_frame = frame;
-        $('.frame').hide();
         frame.show();
+        this.resizeParentOfAceEditor(frame.find('.ace_editor.ace-tm'));
     },
 
     getProgressBarClass: function (percentage) {
@@ -203,8 +220,15 @@ var CodeOceanEditor = {
     },
 
 
-    resizeAceEditors: function () {
-        $('.editor').each(function (index, element) {
+    resizeAceEditors: function (own_solution = false) {
+        let editorSelector;
+        if (own_solution) {
+            editorSelector = $('.own-editor')
+        } else {
+            editorSelector = $('.editor')
+        }
+
+        editorSelector.each(function (index, element) {
             this.resizeParentOfAceEditor(element);
         }.bind(this));
         window.dispatchEvent(new Event('resize'));
@@ -212,13 +236,21 @@ var CodeOceanEditor = {
 
     resizeParentOfAceEditor: function (element) {
         // calculate needed size: window height - position of top of ACE editor - height of autosave label below editor - 5 for bar margins
-        var windowHeight = window.innerHeight - $(element).offset().top - $('#statusbar').height() - 5;
+        var windowHeight = window.innerHeight - $(element).offset().top - ($('#statusbar').height() || 0) - 5;
         $(element).parent().height(windowHeight);
     },
 
-    initializeEditors: function () {
-        this.editors = [];
-        $('.editor').each(function (index, element) {
+    initializeEditors: function (own_solution = false) {
+        // Initialize the editors array if not present already. This is mainly required for community solutions
+        this.editors = this.editors || [];
+        let editorSelector;
+        if (own_solution) {
+            editorSelector = $('.own-editor')
+        } else {
+            editorSelector = $('.editor')
+        }
+
+        editorSelector.each(function (index, element) {
 
             // Resize frame on load
             this.resizeParentOfAceEditor(element);
@@ -279,12 +311,10 @@ var CodeOceanEditor = {
             session.setUseWrapMode(true);
 
             // set regex for parsing error traces based on the mode of the main file.
-            if ($(element).parent().data('role') == "main_file") {
+            if ($(element).parent().data('role') === "main_file") {
                 this.tracepositions_regex = this.regex_for_language.get($(element).data('mode'));
             }
 
-            var file_id = $(element).data('id');
-
             /*
              * Register event handlers
              */
@@ -326,9 +356,15 @@ var CodeOceanEditor = {
             });
     },
 
-    initializeFileTree: function () {
-        $('#files').jstree($('#files').data('entries'));
-        $('#files').on('click', 'li.jstree-leaf > a', function (event) {
+    initializeFileTree: function (own_solution = false) {
+        let filesInstance;
+        if (own_solution) {
+            filesInstance = $('#own-files');
+        } else {
+            filesInstance = $('#files');
+        }
+        filesInstance.jstree(filesInstance.data('entries'));
+        filesInstance.on('click', 'li.jstree-leaf > a', function (event) {
             this.setActiveFile(
                 $(event.target).parent().text(),
                 parseInt($(event.target).parent().attr('id'))
@@ -793,7 +829,7 @@ var CodeOceanEditor = {
                     const percentile75 = data['working_time_75_percentile'];
                     const accumulatedWorkTimeUser = data['working_time_accumulated'];
 
-                    const minTimeIntervention = 10 * 1000;
+                    const minTimeIntervention = 10 * 60 * 1000;
 
                     let timeUntilIntervention;
                     if ((accumulatedWorkTimeUser - percentile75) > 0) {
@@ -879,6 +915,7 @@ var CodeOceanEditor = {
 
 
     initializeEverything: function () {
+        CodeOceanEditor.editors = [];
         this.initializeRegexes();
         this.initializeCodePilot();
         $('.score, #development-environment').show();

app/assets/javascripts/editor/submissions.js

@@ -9,8 +9,9 @@ CodeOceanEditorSubmissions = {
    * Submission-Creation
    */
   createSubmission: function (initiator, filter, callback) {
+    const editor = $('#editor');
     this.showSpinner(initiator);
-    var url = $(initiator).data('url') || $('#editor').data('submissions-url');
+    var url = $(initiator).data('url') || editor.data('submissions-url');
 
     if (url === undefined) {
         const data = {
@@ -24,12 +25,12 @@ CodeOceanEditorSubmissions = {
       data: {
         submission: {
           cause: $(initiator).data('cause') || $(initiator).prop('id'),
-          exercise_id: $('#editor').data('exercise-id'),
+          exercise_id: editor.data('exercise-id') || $(initiator).data('exercise-id'),
           files_attributes: (filter || _.identity)(this.collectFiles())
         }
       },
       dataType: 'json',
-      method: 'POST',
+      method: $(initiator).data('http-method') || 'POST',
       url: url + '.json'
     });
     jqxhr.always(this.hideSpinner.bind(this));
@@ -191,20 +192,22 @@ CodeOceanEditorSubmissions = {
     }
   },
 
-  submitCode: function() {
-    this.createSubmission($('#submit'), null, function (response) {
+  submitCode: function(event) {
+    const button = $(event.target) || $('#submit');
+    this.createSubmission(button, null, function (response) {
       if (response.redirect) {
+        this.editors = [];
         Turbolinks.clearCache();
         clearTimeout(this.autosaveTimer);
         Turbolinks.visit(response.redirect);
       } else if (response.status === 'container_depleted') {
           this.showContainerDepletedMessage();
-          $('#submit').one('click', this.submitCode.bind(this));
+          button.one('click', this.submitCode.bind(this));
       } else if (response.message) {
           $.flash.danger({
               text: response.message
           });
-          $('#submit').one('click', this.submitCode.bind(this));
+          button.one('click', this.submitCode.bind(this));
       }
     })
   },

app/assets/stylesheets/editor.css.scss

@@ -7,6 +7,14 @@ button i.fa-spin {
   width: 100%;
 }
 
+.own-editor {
+  height: 100%;
+  width: 100%;
+  .ace_scroller .ace_content {
+    background: #FAFAFA;
+  }
+}
+
 /* this class is used for the edit view of an exercise. It needs the height set, as it does not automatically resize */
 .edit-frame {
   height: 400px;
@@ -26,6 +34,15 @@ button i.fa-spin {
   }
 }
 
+.own-frame {
+  display: none;
+  min-height: 300px;
+
+  audio, img, video {
+    max-width: 100%;
+  }
+}
+
 .score {
   display: none;
   vertical-align: bottom;
@@ -64,6 +81,10 @@ button i.fa-spin {
   overflow: auto;
 }
 
+#own-files {
+  overflow: auto;
+}
+
 #outputInformation {
   #output {
     max-height: 500px;

app/controllers/community_solutions_controller.rb

@@ -0,0 +1,103 @@
+# frozen_string_literal: true
+
+class CommunitySolutionsController < ApplicationController
+  include CommonBehavior
+  include RedirectBehavior
+  include SubmissionParameters
+
+  before_action :set_community_solution, only: %i[edit update]
+  before_action :set_community_solution_lock, only: %i[edit]
+  before_action :set_exercise_and_submission, only: %i[edit update]
+
+  # GET /community_solutions
+  def index
+    @community_solutions = CommunitySolution.all
+    authorize!
+  end
+
+  # GET /community_solutions/1/edit
+  def edit
+    authorize!
+
+    # Be safe. Only allow access to this page if user has valid lock
+    redirect_after_submit unless @community_solution_lock.present? && @community_solution_lock.active? && @community_solution_lock.user == current_user && @community_solution_lock.community_solution == @community_solution
+    # We don't want to perform any of the following steps if we rendered already (e.g. due to a redirect)
+    return if performed?
+
+    last_contribution = CommunitySolutionContribution.where(community_solution: @community_solution, timely_contribution: true, autosave: false, proposed_changes: true).order(created_at: :asc).last
+    @files = []
+    if last_contribution.blank?
+      last_contribution = @community_solution.exercise
+      new_readme_file = {content: '', file_type: FileType.find_by(file_extension: '.txt'), hidden: false, read_only: false, name: 'ReadMe', role: 'regular_file', context: @community_solution}
+      @files << CodeOcean::File.create!(new_readme_file)
+    end
+    all_visible_files = last_contribution.files.select(&:visible)
+    # Add the ReadMe file first
+    @files += all_visible_files.select {|f| CodeOcean::File.find_by(id: f.file_id).context_type == 'CommunitySolution' }
+    # Then, add all remaining files and sort them by name with extension
+    @files += (all_visible_files - @files).sort_by(&:name_with_extension)
+
+    # Own Submission as a reference
+    @own_files = @submission.collect_files.select(&:visible).sort_by(&:name_with_extension)
+    # Remove the file_id from the second graph. Otherwise, the comparison and file-tree selection does not work as expected
+    @own_files.map do |file|
+      file.file_id = nil
+      file.read_only = true
+    end
+  end
+
+  # PATCH/PUT /community_solutions/1
+  def update
+    authorize!
+    contribution_params = submission_params
+    cause = contribution_params.delete(:cause)
+    contribution_params[:proposed_changes] = cause == 'change-community-solution'
+    contribution_params[:autosave] = cause == 'autosave-community-solution'
+    contribution_params.delete(:exercise_id)
+    contribution_params[:community_solution] = @community_solution
+
+    # Acquire lock here! This is expensive but required for synchronization
+    @community_solution_lock = ActiveRecord::Base.transaction do
+      ActiveRecord::Base.connection.execute("LOCK #{CommunitySolutionLock.table_name} IN ACCESS EXCLUSIVE MODE")
+
+      lock = CommunitySolutionLock.where(user: current_user, community_solution: @community_solution).order(locked_until: :asc).last
+
+      if lock.active?
+        contribution_params[:timely_contribution] = true
+        # Update lock: Either expand the time (autosave) or return it (change / accept)
+        new_lock_time = contribution_params[:autosave] ? 5.minutes.from_now : Time.zone.now
+        lock.update!(locked_until: new_lock_time)
+      else
+        contribution_params[:timely_contribution] = false
+      end
+      # This is returned
+      lock
+    end
+
+    contribution_params[:community_solution_lock] = @community_solution_lock
+    contribution_params[:working_time] = @community_solution_lock.working_time
+    CommunitySolutionContribution.create(contribution_params)
+
+    redirect_after_submit
+  end
+
+  private
+
+  def authorize!
+    authorize(@community_solution)
+  end
+
+  # Use callbacks to share common setup or constraints between actions.
+  def set_community_solution
+    @community_solution = CommunitySolution.find(params[:id])
+  end
+
+  def set_community_solution_lock
+    @community_solution_lock = CommunitySolutionLock.find(params[:lock_id])
+  end
+
+  def set_exercise_and_submission
+    @exercise = @community_solution.exercise
+    @submission = current_user.submissions.final.where(exercise_id: @community_solution.exercise.id).order('created_at DESC').first
+  end
+end

app/controllers/concerns/file_parameters.rb

@@ -6,7 +6,7 @@ module FileParameters
       params.reject do |_, file_attributes|
         file = CodeOcean::File.find_by(id: file_attributes[:file_id])
         # avoid that public files from other contexts can be created
-        file.nil? || file.hidden || file.read_only || (file.context_type == 'Exercise' && file.context_id != exercise.id)
+        file.nil? || file.hidden || file.read_only || (file.context_type == 'Exercise' && file.context_id != exercise.id) || (file.context_type == 'CommunitySolution' && controller_name != 'community_solutions')
       end
     else
       []

app/controllers/concerns/redirect_behavior.rb

@@ -6,6 +6,11 @@ module RedirectBehavior
   def redirect_after_submit
     Rails.logger.debug { "Redirecting user with score:s #{@submission.normalized_score}" }
     if @submission.normalized_score.to_d == 1.0.to_d
+      if redirect_to_community_solution?
+        redirect_to_community_solution
+        return
+      end
+
       # if user is external and has an own rfc, redirect to it and message him to clean up and accept the answer. (we need to check that the user is external,
       # otherwise an internal user could be shown a false rfc here, since current_user.id is polymorphic, but only makes sense for external users when used with rfcs.)
       # redirect 10 percent pseudorandomly to the feedback page
@@ -63,6 +68,40 @@ module RedirectBehavior
 
   private
 
+  def redirect_to_community_solution
+    url = edit_community_solution_path(@community_solution, lock_id: @community_solution_lock.id)
+    respond_to do |format|
+      format.html { redirect_to(url) }
+      format.json { render(json: {redirect: url}) }
+    end
+  end
+
+  def redirect_to_community_solution?
+    return false unless Java21Study.allow_redirect_to_community_solution?(current_user, @exercise)
+
+    @community_solution = CommunitySolution.find_by(exercise: @exercise)
+    return false if @community_solution.blank?
+
+    last_contribution = CommunitySolutionContribution.where(community_solution: @community_solution).order(created_at: :asc).last
+
+    # Only redirect if last contribution is from another user.
+    eligible = last_contribution.blank? || last_contribution.user != current_user
+    return false unless eligible
+
+    # Acquire lock here! This is expensive but required for synchronization
+    @community_solution_lock = ActiveRecord::Base.transaction do
+      ActiveRecord::Base.connection.execute("LOCK #{CommunitySolutionLock.table_name} IN ACCESS EXCLUSIVE MODE")
+
+      # This is returned
+      CommunitySolutionLock.find_or_create_by(community_solution: @community_solution, locked_until: Time.zone.now...) do |lock|
+        lock.user = current_user
+        lock.locked_until = 5.minutes.from_now
+      end
+    end
+
+    @community_solution_lock.user == current_user
+  end
+
   def redirect_to_user_feedback
     uef = UserExerciseFeedback.find_by(exercise: @exercise, user: current_user)
     url = if uef

app/models/community_solution.rb

@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class CommunitySolution < ApplicationRecord
+  belongs_to :exercise
+  has_many :community_solution_locks
+  has_many :community_solution_contributions
+  has_and_belongs_to_many :users, polymorphic: true, through: :community_solution_contributions
+  has_many :files, class_name: 'CodeOcean::File', through: :community_solution_contributions
+
+  def to_s
+    "Gemeinschaftslösung für #{exercise}"
+  end
+end

app/models/community_solution_contribution.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class CommunitySolutionContribution < ApplicationRecord
+  include Creation
+  include Context
+
+  belongs_to :community_solution
+  belongs_to :community_solution_lock
+
+  validates :proposed_changes, boolean_presence: true
+  validates :timely_contribution, boolean_presence: true
+  validates :autosave, boolean_presence: true
+  validates :working_time, presence: true
+end

app/models/community_solution_lock.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class CommunitySolutionLock < ApplicationRecord
+  include Creation
+
+  belongs_to :community_solution
+  has_many :community_solution_contributions
+
+  validates :locked_until, presence: true
+
+  def active?
+    Time.zone.now <= locked_until
+  end
+
+  def working_time
+    ActiveSupport::Duration.build(locked_until - created_at)
+  end
+end

app/policies/community_solution_policy.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class CommunitySolutionPolicy < AdminOnlyPolicy
+  def edit?
+    everyone
+  end
+
+  def update?
+    everyone
+  end
+end

app/views/community_solutions/_form.html.slim

@@ -0,0 +1,66 @@
+.exercise.clearfix
+  div
+    span.badge.badge-pill.badge-primary.float-right.score
+
+    h1 id="exercise-headline"
+      i id="description-symbol" class=(@embed_options[:collapse_exercise_description] ? 'fa fa-chevron-right' : 'fa fa-chevron-down')
+      => @community_solution.model_name.human(count: 1)
+      = @community_solution.exercise.title
+
+  #description-card.lead class=(@embed_options[:collapse_exercise_description] ? 'description-card-collapsed' : 'description-card')
+    .card.border-success.mb-3
+      .card-header
+        i.fa.fa-info-circle.text-success
+        strong.text-success
+          => t('community_solutions.help_us_out')
+        = t('community_solutions.explanation')
+        br
+        i.fa.fa-flask.text-success
+        strong.text-success
+          => t('community_solutions.research_status')
+        == t('community_solutions.research_explanation')
+    hr
+    = render_markdown(@community_solution.exercise.description)
+
+  a#toggle href="#" data-show=t('shared.show') data-hide=t('shared.hide')
+    - if @embed_options[:collapse_exercise_description]
+      = t('shared.show')
+    - else
+      = t('shared.hide')
+.row.mt-4
+  .col-xl-6
+    h4
+      = t('community_solutions.current_community_solution')
+    #community-solution-editor.row
+      .pr-0 class=(@community_solution.exercise.hide_file_tree ? 'd-none col-sm-3' : 'col-sm-3')
+        .card.border-secondary
+          .card-header.d-flex.justify-content-between.align-items-center.px-0.py-2
+            .px-2 = I18n.t('exercises.editor_file_tree.file_root')
+          .card-body.pt-0.pr-0.pl-1.pb-1
+            #files data-entries=FileTree.new(@files).to_js_tree
+      div class=(@community_solution.exercise.hide_file_tree ? 'col-sm-12' : 'col-sm-9')
+        div.editor-col.col.p-0 id='frames'
+          - @files.each do |file|
+            = render('exercises/editor_frame', exercise: @community_solution.exercise, file: file)
+
+  .col-xl-6.container-fluid
+    div.bg-dark.h-100.float-left.row style="width: 1px"
+    div
+      h4
+        = t('community_solutions.your_submission')
+      #own-solution-editor.row
+        .pr-0 class=(@community_solution.exercise.hide_file_tree ? 'd-none col-sm-3' : 'col-sm-3')
+          .card.border-secondary
+            .card-header.d-flex.justify-content-between.align-items-center.px-0.py-2
+              .px-2 = I18n.t('exercises.editor_file_tree.file_root')
+            .card-body.pt-0.pr-0.pl-1.pb-1
+              #own-files data-entries=FileTree.new(@own_files).to_js_tree
+        div class=(@community_solution.exercise.hide_file_tree ? 'col-sm-12' : 'col-sm-9')
+          div.editor-col.col.p-0 id='own-frames'
+            - @own_files.each do |file|
+              = render('exercises/editor_frame', exercise: @community_solution.exercise, file: file, own_solution: true)
+#statusbar.visible.mt-2 style="height: 5em"
+  p.text-center
+    = render('exercises/editor_button', classes: 'btn-lg btn-success ml-5 mr-3', data: {'data-url': community_solution_path(@community_solution), 'data-http-method': 'PUT', 'data-cause': 'change-community-solution', 'data-exercise-id': @community_solution.exercise.id}, icon: 'fa fa-send', id: 'submit', label: t('community_solutions.change_community_solution'))
+    = render('exercises/editor_button', classes: 'btn-lg btn-secondary ml-5', data: {'data-url': community_solution_path(@community_solution), 'data-http-method': 'PUT', 'data-cause': 'accept-community-solution', 'data-exercise-id': @community_solution.exercise.id}, icon: 'fa fa-check', id: 'accept', label: t('community_solutions.accept_community_solution'))
+  button style="display:none" id="autosave" data-url=community_solution_path(@community_solution) data-http-method='PUT' data-cause='autosave-community-solution' data-exercise-id=@community_solution.exercise.id

app/views/community_solutions/edit.html.slim

@@ -0,0 +1,6 @@
+- content_for :head do
+  // Force a full page reload, see https://github.com/turbolinks/turbolinks/issues/326.
+     Otherwise, code might not be highlighted correctly (race condition)
+  meta name='turbolinks-visit-control' content='reload'
+
+== render 'form'

app/views/community_solutions/index.html.slim

@@ -0,0 +1,19 @@
+h1 Listing community_solutions
+
+table
+  thead
+    tr
+      th
+      th
+      th
+
+  tbody
+    - @community_solutions.each do |community_solution|
+      tr
+        td = link_to 'Show', community_solution
+        td = link_to 'Edit', edit_community_solution_path(community_solution)
+        td = link_to 'Destroy', community_solution, data: { confirm: 'Are you sure?' }, method: :delete
+
+br
+
+= link_to 'New Community solution', new_community_solution_path

app/views/exercises/_editor_frame.html.slim

@@ -1,4 +1,4 @@
-.frame data-executable=file.file_type.executable? data-filename=file.name_with_extension data-renderable=file.file_type.renderable? data-role=file.role data-binary=file.file_type.binary? data-context-type=file.context_type data-read-only=file.read_only
+div class=(defined?(own_solution) ? "own-frame" : "frame") data-executable=file.file_type.executable? data-filename=file.name_with_extension data-renderable=file.file_type.renderable? data-role=file.role data-binary=file.file_type.binary? data-context-type=file.context_type data-read-only=file.read_only
   - if file.file_type.binary?
     .binary-file data-file-id=file.ancestor_id
       - if file.file_type.renderable?
@@ -12,4 +12,4 @@
         = link_to(file.native_file.file.filename, file.native_file.url)
   - else
     .editor-content.d-none 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-allow-auto-completion=exercise.allow_auto_completion.to_s data-id=file.id
+    div class=(defined?(own_solution) ? "own-editor" : "editor") data-file-id=file.ancestor_id data-indent-size=file.file_type.indent_size data-mode=file.file_type.editor_mode data-allow-auto-completion=exercise.allow_auto_completion.to_s data-id=file.id

app/views/layouts/application.html.slim

@@ -55,7 +55,7 @@ html lang="#{I18n.locale || I18n.default_locale}"
       = render('flash')
       - if current_user.try(:admin?) or current_user.try(:teacher?) && !@embed_options[:hide_navbar]
         = yield(:breadcrumbs)
-    - if (controller_name == "exercises" && action_name == "implement")
+    - if (controller_name == "exercises" && action_name == "implement") || (controller_name == 'community_solutions' && action_name == 'edit')
       .container-fluid
         = yield
     - else