Disable "New Issue" and "New Merge Request" buttons when features are disabled in project settings

Closes #1676

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 7.12.0 (unreleased)
+  - Disable "New Issue" and "New Merge Request" buttons when features are disabled in project settings (Stan Hu)
   - Allow to configure location of the `.gitlab_shell_secret` file. (Jakub Jirutka)
   - Disabled expansion of top/bottom blobs for new file diffs
   - Update Asciidoctor gem to version 1.5.2. (Jakub Jirutka)

app/models/ability.rb

@@ -101,6 +101,22 @@ class Ability
           rules -= project_archived_rules
         end
 
+        unless project.issues_enabled
+          rules -= named_abilities('issue')
+        end
+
+        unless project.merge_requests_enabled
+          rules -= named_abilities('merge_request')
+        end
+
+        unless project.snippets_enabled
+          rules -= named_abilities('snippet')
+        end
+
+        unless project.wiki_enabled
+          rules -= named_abilities('wiki')
+        end
+
         rules
       end
     end
@@ -272,5 +288,16 @@ class Ability
                        abilities
                      end
     end
+
+    private
+
+    def named_abilities(name)
+      [
+        :"read_#{name}",
+        :"write_#{name}",
+        :"modify_#{name}",
+        :"admin_#{name}"
+      ]
+    end
   end
 end

app/views/projects/_dropdown.html.haml

-- if current_user
-  .dropdown.pull-right
-    %a.dropdown-toggle.btn.btn-sm{href: '#', "data-toggle" => "dropdown"}
-      %i.fa.fa-bars
-    %ul.dropdown-menu
-      - if @project.issues_enabled && can?(current_user, :write_issue, @project)
-        %li
-          = link_to url_for_new_issue(@project, only_path: true), title: "New Issue" do
-            %i.fa.fa-fw.fa-exclamation-circle
-            New issue
-      - if @project.merge_requests_enabled && can?(current_user, :write_merge_request, @project)
-        %li
-          = link_to new_namespace_project_merge_request_path(@project.namespace, @project), title: "New Merge Request" do
-            %i.fa.fa-fw.fa-tasks
-            New merge request
-      - if @project.snippets_enabled && can?(current_user, :write_snippet, @project)
-        %li
-          = link_to new_namespace_project_snippet_path(@project.namespace, @project), title: "New Snippet" do
-            %i.fa.fa-fw.fa-file-text-o
-            New snippet
-      - if can?(current_user, :admin_project_member, @project)
-        %li
-          = link_to namespace_project_project_members_path(@project.namespace, @project), title: "New project member" do
-            %i.fa.fa-fw.fa-users
-            New project member
-      - if can? current_user, :push_code, @project
-        %li.divider
-        %li
-          = link_to new_namespace_project_branch_path(@project.namespace, @project) do
-            %i.fa.fa-fw.fa-code-fork
-            New branch
-        %li
-          = link_to new_namespace_project_tag_path(@project.namespace, @project) do
-            %i.fa.fa-fw.fa-tag
-            New tag
-
-

app/views/projects/milestones/show.html.haml

@@ -61,7 +61,7 @@
       Participants
       %span.badge= @users.count
 
-  - if @project.issues_enabled
+  - if can?(current_user, :write_issue, @project)
     .pull-right
       = link_to new_namespace_project_issue_path(@project.namespace, @project, issue: { milestone_id: @milestone.id }), class: "btn  btn-grouped", title: "New Issue" do
         %i.fa.fa-plus

features/project/project.feature

@@ -62,3 +62,9 @@ Feature: Project
     And I add project tags
     And I save project
     Then I should see project tags
+
+  Scenario: I should not see "New Issue" or "New Merge Request" buttons
+    Given I disable issues and merge requests in project
+    When I visit project "Shop" page
+    Then I should not see "New Issue" button
+    And I should not see "New Merge Request" button

features/steps/project/project.rb

@@ -102,4 +102,12 @@ class Spinach::Features::Project < Spinach::FeatureSteps
   step 'I should see project tags' do
     expect(find_field('Tags').value).to eq 'tag1, tag2'
   end
+
+  step 'I should not see "New Issue" button' do
+    page.should_not have_link 'New Issue'
+  end
+
+  step 'I should not see "New Merge Request" button' do
+    page.should_not have_link 'New Merge Request'
+  end
 end

features/steps/shared/project.rb

@@ -14,6 +14,12 @@ module SharedProject
     @project.team << [@user, :master]
   end
 
+  step 'I disable issues and merge requests in project' do
+    @project.issues_enabled = false
+    @project.merge_requests_enabled = false
+    @project.save
+  end
+
   # Add another user to project "Shop"
   step 'I add a user to project "Shop"' do
     @project = Project.find_by(name: "Shop")