1 files changed, 42 insertions, 0 deletions
diff --git a/app/controllers/concerns/milestone_actions.rb b/app/controllers/concerns/milestone_actions.rb
new file mode 100644
index 00000000000..c28d08201e0
--- /dev/null
+++ b/app/controllers/concerns/milestone_actions.rb
@@ -0,0 +1,42 @@
+module MilestoneActions
+  extend ActiveSupport::Concern
+
+  def merge_requests
+    respond_to do |format|
+      format.json do
+        render json: tabs_json("shared/milestones/_merge_requests_tab", {
+          merge_requests: @milestone.merge_requests,
+          show_project_name: true
+        })
+      end
+    end
+  end
+
+  def participants
+    respond_to do |format|
+      format.json do
+        render json: tabs_json("shared/milestones/_participants_tab", {
+          users: @milestone.participants
+        })
+      end
+    end
+  end
+
+  def labels
+    respond_to do |format|
+      format.json do
+        render json: tabs_json("shared/milestones/_labels_tab", {
+          labels: @milestone.labels
+        })
+      end
+    end
+  end
+
+  private
+
+  def tabs_json(partial, data = {})
+    {
+      html: view_to_html_string(partial, data)
+    }
+  end
+end