Live update poll votes.

plugins/poll/plugin.rb

@@ -47,6 +47,15 @@ after_initialize do
 
         poll.set_vote!(current_user, params[:option])
 
+        MessageBus.publish("/topic/#{post.topic_id}", {
+                        id: post.id,
+                        post_number: post.post_number,
+                        updated_at: Time.now,
+                        type: "revised"
+                      },
+                      group_ids: post.topic.secure_group_ids
+        )
+
         render json: poll.serialize(current_user)
       end
     end

plugins/poll/spec/poll_plugin/poll_controller_spec.rb

@@ -31,6 +31,8 @@ describe PollPlugin::PollController, type: :controller do
   end
 
   it "should save votes correctly" do
+    MessageBus.expects(:publish).times(4)
+
     log_in_user user1
     xhr :put, :vote, post_id: post.id, option: "Chitoge", use_route: :poll
     PollPlugin::Poll.new(post).get_vote(user1).should eq("Chitoge")