Code for displaying endorsed checkmark.

lms/lib/comment_client/thread.py

@@ -12,6 +12,7 @@ class Thread(models.Model):
         'created_at', 'updated_at', 'comments_count',
         'at_position_list', 'children', 'type',
         'highlighted_title', 'highlighted_body',
+        'endorsed'
     ]
 
     updatable_fields = [

lms/static/coffee/src/discussion/views/discussion_thread_list_view.coffee

@@ -103,6 +103,8 @@ class @DiscussionThreadListView extends Backbone.View
     content = $(_.template($("#thread-list-item-template").html())(thread.toJSON()))
     if thread.get('subscribed')
       content.addClass("followed")
+    if thread.get('endorsed')
+      content.addClass("resolved")
     @highlight(content)
 
 

lms/static/coffee/src/discussion/views/discussion_thread_view.coffee

@@ -66,12 +66,17 @@ class @DiscussionThreadView extends DiscussionContentView
       response.set('thread', @model)
       view = new ThreadResponseView(model: response)
       view.on "comment:add", @addComment
+      view.on "comment:endorse", @endorseThread
       view.render()
       @$el.find(".responses").append(view.el)
 
   addComment: =>
     @model.comment()
 
+  endorseThread: (endorsed) =>
+    is_endorsed = @$el.find(".is-endorsed").length
+    @model.set 'endorsed', is_endorsed
+
   toggleVote: (event) ->
     event.preventDefault()
     if window.user.voted(@model)

lms/static/coffee/src/discussion/views/thread_response_view.coffee

@@ -109,6 +109,7 @@ class @ThreadResponseView extends DiscussionContentView
     endorsed = @model.get('endorsed')
     data = { endorsed: not endorsed }
     @model.set('endorsed', not endorsed)
+    @trigger "comment:endorse", not endorsed
     DiscussionUtil.safeAjax
       $elem: $elem
       url: url