restored ability to 'unlike'

app/controllers/likes_controller.rb

@@ -34,7 +34,7 @@ class LikesController < ApplicationController
       current_user.retract(@like)
       respond_to do |format|
         format.any { }
-        format.json { render :nothing => true, :status => 204}
+        format.json{ render :json => @like.parent.as_api_response(:backbone), :status => 202 }
       end
     else
       respond_to do |format|

public/javascripts/app/models/post.js

@@ -45,7 +45,10 @@ app.models.Post = Backbone.Model.extend({
   },
 
   unlike : function() {
-    this.get("user_like").destroy();
+    var likeModel = new app.models.Like(this.get("user_like"));
+    likeModel.url = this.likes.url + "/" + likeModel.id;
+
+    likeModel.destroy();
     this.set({ user_like : null });
   },
 

spec/controllers/likes_controller_spec.rb

@@ -117,7 +117,7 @@ describe LikesController do
           expect {
             delete :destroy, :format => :json, id_field => @like.target_id, :id => @like.id
           }.should change(Like, :count).by(-1)
-          response.status.should == 204
+          response.status.should == 202
         end
 
         it 'does not let a user destroy other likes' do

spec/javascripts/app/models/post_spec.js

@@ -59,12 +59,12 @@ describe("app.models.Post", function() {
   describe("unlike", function(){
     it("calls destroy on the likes collection", function(){
       var like = new app.models.Like();
-      this.post.set({user_like : like})
+      this.post.set({user_like : like.toJSON()})
 
-      spyOn(like, "destroy");
+      spyOn(app.models.Like.prototype, "destroy");
 
       this.post.unlike();
-      expect(like.destroy).toHaveBeenCalled();
+      expect(app.models.Like.prototype.destroy).toHaveBeenCalled();
     })
   })