Add links from GitLab to CI

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/models/project.rb

@@ -119,6 +119,7 @@ class Project < ActiveRecord::Base
   has_many :starrers, through: :users_star_projects, source: :user
 
   has_one :import_data, dependent: :destroy, class_name: "ProjectImportData"
+  has_one :gitlab_ci_project, dependent: :destroy, class_name: "Ci::Project", foreign_key: :gitlab_id
 
   delegate :name, to: :owner, allow_nil: true, prefix: true
   delegate :members, to: :team, prefix: true

app/views/layouts/nav/_dashboard.html.haml

@@ -46,3 +46,8 @@
       = icon('user fw')
       %span
         Profile Settings
+  = nav_link(controller: :ci) do
+    = link_to ci_root_path, title: 'Continuous Integration', data: {placement: 'right'} do
+      = icon('building fw')
+      %span
+        CI

app/views/projects/_home_panel.html.haml

@@ -28,4 +28,8 @@
 
     = render 'projects/buttons/dropdown'
 
+    - if @project.gitlab_ci?
+      = link_to ci_project_path(@project.gitlab_ci_project), class: 'btn btn-default' do
+        CI
+
   = render "shared/clone_panel"