Add labels tab to milestone detail view.

app/assets/stylesheets/pages/labels.scss

@@ -19,3 +19,7 @@
 .color-label {
   padding: 3px 4px;
 }
+
+#tab-labels .issues-count {
+  margin-left: 30px;
+}

app/controllers/projects/milestones_controller.rb

@@ -34,6 +34,7 @@ class Projects::MilestonesController < Projects::ApplicationController
     @issues = @milestone.issues
     @users = @milestone.participants.uniq
     @merge_requests = @milestone.merge_requests
+    @labels = @milestone.labels
   end
 
   def create

app/models/label.rb

@@ -85,6 +85,10 @@ class Label < ActiveRecord::Base
     issues.opened.count
   end
 
+  def closed_issues_count
+    issues.closed.count
+  end
+
   def template?
     template
   end

app/models/milestone.rb

@@ -27,6 +27,7 @@ class Milestone < ActiveRecord::Base
 
   belongs_to :project
   has_many :issues
+  has_many :labels, through: :issues
   has_many :merge_requests
   has_many :participants, through: :issues, source: :assignee
 

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

@@ -70,6 +70,10 @@
     = link_to '#tab-participants', 'data-toggle' => 'tab' do
       Participants
       %span.badge= @users.count
+  %li
+    = link_to '#tab-labels', 'data-toggle' => 'tab' do
+      Labels
+      %span.badge= @labels.count
 
 .tab-content
   .tab-pane.active#tab-issues
@@ -128,3 +132,12 @@
             %strong= truncate(user.name, lenght: 40)
             %br
             %small.cgray= user.username
+
+  .tab-pane#tab-labels
+    %ul.bordered-list.manage-labels-list
+      - @labels.each do |label|
+        %li
+          = render_colored_label(label)
+          .pull-right
+            %span.issues-count= pluralize label.open_issues_count, 'open issue'
+            %span.issues-count= pluralize label.closed_issues_count, 'closed issue'