Merge branch 'project-edit-features-hide' into 'master'

Hides merge request section in edit project when disabled

## What does this MR do?

Correctly hides the merge request section in the project edit page when disabled. It used to work before the feature visibility part was changed to dropdown - so added a test to prevent in future! :thumbsup: 

## Screenshots (if relevant)

![hide](/uploads/eb72ef87bad19c2716472a0c1031fd32/hide.gif)

See merge request !6175

3 files changed, 29 insertions, 18 deletions

diff --git a/app/assets/javascripts/project_new.js b/app/assets/javascripts/project_new.js
index 798f15e40a0..a787b11f2a9 100644
--- a/app/assets/javascripts/project_new.js
+++ b/app/assets/javascripts/project_new.js
@@ -4,6 +4,8 @@
   this.ProjectNew = (function() {
     function ProjectNew() {
       this.toggleSettings = bind(this.toggleSettings, this);
+      this.$selects = $('.features select');
+
       $('.project-edit-container').on('ajax:before', (function(_this) {
         return function() {
           $('.project-edit-container').hide();
@@ -15,18 +17,24 @@
     }
 
     ProjectNew.prototype.toggleSettings = function() {
-      this._showOrHide('#project_builds_enabled', '.builds-feature');
-      return this._showOrHide('#project_merge_requests_enabled', '.merge-requests-feature');
+      var self = this;
+
+      this.$selects.each(function () {
+        var $select = $(this),
+            className = $select.data('field').replace(/_/g, '-')
+              .replace('access-level', 'feature');
+        self._showOrHide($select, '.' + className);
+      });
     };
 
     ProjectNew.prototype.toggleSettingsOnclick = function() {
-      return $('#project_builds_enabled, #project_merge_requests_enabled').on('click', this.toggleSettings);
+      this.$selects.on('change', this.toggleSettings);
     };
 
     ProjectNew.prototype._showOrHide = function(checkElement, container) {
-      var $container;
-      $container = $(container);
-      if ($(checkElement).prop('checked')) {
+      var $container = $(container);
+
+      if ($(checkElement).val() !== '0') {
         return $container.show();
       } else {
         return $container.hide();
diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index d6efa603223..4c685b97c03 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -431,6 +431,6 @@ module ProjectsHelper
     options.delete('Everyone with access') if @project.private? && level != ProjectFeature::ENABLED
 
     options = options_for_select(options, selected: @project.project_feature.public_send(field) || ProjectFeature::ENABLED)
-    content_tag(:select, options, name: "project[project_feature_attributes][#{field.to_s}]", id: "project_project_feature_attributes_#{field.to_s}", class: "pull-right form-control").html_safe
+    content_tag(:select, options, name: "project[project_feature_attributes][#{field.to_s}]", id: "project_project_feature_attributes_#{field.to_s}", class: "pull-right form-control", data: { field: field }).html_safe
   end
 end
diff --git a/app/views/projects/_merge_request_settings.html.haml b/app/views/projects/_merge_request_settings.html.haml
index 19b4249374b..14eb47089b1 100644
--- a/app/views/projects/_merge_request_settings.html.haml
+++ b/app/views/projects/_merge_request_settings.html.haml
@@ -1,11 +1,14 @@
-%fieldset.builds-feature
-  %h5.prepend-top-0
-    Merge Requests
-  .form-group
-    .checkbox
-      = f.label :only_allow_merge_if_build_succeeds do
-        = f.check_box :only_allow_merge_if_build_succeeds
-        %strong Only allow merge requests to be merged if the build succeeds
-      .help-block
-        Builds need to be configured to enable this feature.
-        = link_to icon('question-circle'), help_page_path('workflow/merge_requests', anchor: 'only-allow-merge-requests-to-be-merged-if-the-build-succeeds')
+.merge-requests-feature
+  %fieldset.builds-feature
+    %hr
+    %h5.prepend-top-0
+      Merge Requests
+    .form-group
+      .checkbox
+        = f.label :only_allow_merge_if_build_succeeds do
+          = f.check_box :only_allow_merge_if_build_succeeds
+          %strong Only allow merge requests to be merged if the build succeeds
+          %br
+          %span.descr
+            Builds need to be configured to enable this feature.
+            = link_to icon('question-circle'), help_page_path('workflow/merge_requests', anchor: 'only-allow-merge-requests-to-be-merged-if-the-build-succeeds')