Comment details and comment voting.

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

@@ -37,6 +37,7 @@ class @DiscussionThreadView extends Backbone.View
       @vote()
     else
       @unvote()
+    false
 
   toggleFollowing: (event) ->
     $elem = $(event.target)

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

@@ -3,4 +3,5 @@ class @ResponseCommentView extends Backbone.View
   template: _.template($("#response-comment-template").html())
   render: ->
     @$el.html(@template(@model.toJSON()))
+    @$(".timeago").timeago()
     @

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

@@ -1,8 +1,13 @@
 class @ThreadResponseView extends Backbone.View
   tagName: "li"
   template: _.template($("#thread-response-template").html())
+  events:
+      "click .vote-btn": "toggleVote"
   render: ->
     @$el.html(@template(@model.toJSON()))
+    if window.user.voted(@model)
+      @$(".vote-btn").addClass("is-cast")
+    @$(".posted-details").timeago()
     @renderComments()
     @
 
@@ -12,4 +17,34 @@ class @ThreadResponseView extends Backbone.View
   renderComment: (comment) =>
     view = new ResponseCommentView(model: comment)
     view.render()
-    @$(".comments").append(view.el)
+    @$(".comments li:last").before(view.el)
+
+  toggleVote: ->
+    @$(".vote-btn").toggleClass("is-cast")
+    if @$(".vote-btn").hasClass("is-cast")
+      @vote()
+    else
+      @unvote()
+    false
+
+  vote: ->
+    url = @model.urlFor("upvote")
+    @$(".votes-count-number").html(parseInt(@$(".votes-count-number").html()) + 1)
+    DiscussionUtil.safeAjax
+      $elem: @$(".discussion-vote")
+      url: url
+      type: "POST"
+      success: (response, textStatus) =>
+        if textStatus == 'success'
+          @model.set(response)
+
+  unvote: ->
+    url = @model.urlFor("unvote")
+    @$(".votes-count-number").html(parseInt(@$(".votes-count-number").html()) - 1)
+    DiscussionUtil.safeAjax
+      $elem: @$(".discussion-vote")
+      url: url
+      type: "POST"
+      success: (response, textStatus) =>
+        if textStatus == 'success'
+          @model.set(response)