Started inital migration to rails 3.2

app/models/topic.rb

@@ -28,7 +28,7 @@ class Topic < ActiveRecord::Base
   
   private
     def create_initial_post
-      returning self.posts.build(:body => self.body) do |post|
+      self.posts.build(:body => self.body).tap do |post|
         post.forum = self.forum
         post.user = self.user
         post.save