API: restore broken merge request commenting

lib/api/entities.rb

@@ -75,5 +75,10 @@ module Gitlab
       expose :author, using: Entities::UserBasic
       expose :updated_at, :created_at
     end
+
+    class MRNote < Grape::Entity
+      expose :note
+      expose :author, using: Entities::UserBasic
+    end
   end
 end

lib/api/merge_requests.rb

@@ -4,9 +4,9 @@ module Gitlab
     before { authenticate! }
 
     resource :projects do
-      
+
       # List merge requests
-      # 
+      #
       # Parameters:
       #   id (required) - The ID or code name of a project
       #
@@ -15,24 +15,24 @@ module Gitlab
       #
       get ":id/merge_requests" do
         authorize! :read_merge_request, user_project
-        
+
         present paginate(user_project.merge_requests), with: Entities::MergeRequest
       end
-      
+
       # Show MR
-      # 
+      #
       # Parameters:
       #   id (required)               - The ID or code name of a project
       #   merge_request_id (required) - The ID of MR
-      # 
+      #
       # Example:
       #   GET /projects/:id/merge_request/:merge_request_id
       #
       get ":id/merge_request/:merge_request_id" do
         merge_request = user_project.merge_requests.find(params[:merge_request_id])
-        
+
         authorize! :read_merge_request, merge_request
-        
+
         present merge_request, with: Entities::MergeRequest
       end
 
@@ -45,17 +45,17 @@ module Gitlab
       #   target_branch (required) - The target branch
       #   assignee_id              - Assignee user ID
       #   title (required)         - Title of MR
-      # 
+      #
       # Example:
       #   POST /projects/:id/merge_requests
       #
       post ":id/merge_requests" do
         authorize! :write_merge_request, user_project
-        
+
         attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title]
         merge_request = user_project.merge_requests.new(attrs)
         merge_request.author = current_user
-        
+
         if merge_request.save
           merge_request.reload_code
           present merge_request, with: Entities::MergeRequest
@@ -80,9 +80,9 @@ module Gitlab
       put ":id/merge_request/:merge_request_id" do
         attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :closed]
         merge_request = user_project.merge_requests.find(params[:merge_request_id])
-        
+
         authorize! :modify_merge_request, merge_request
-        
+
         if merge_request.update_attributes attrs
           merge_request.reload_code
           merge_request.mark_as_unchecked
@@ -98,7 +98,7 @@ module Gitlab
       #   id (required) - The ID or code name of a project
       #   merge_request_id (required) - ID of MR
       #   note (required) - Text of comment
-      # Examples: 
+      # Examples:
       #   POST /projects/:id/merge_request/:merge_request_id/comments
       #
       post ":id/merge_request/:merge_request_id/comments" do
@@ -107,7 +107,7 @@ module Gitlab
         note.author = current_user
 
         if note.save
-          present note, with: Entities::Note
+          present note, with: Entities::MRNote
         else
           not_found!
         end