Add users to posts that were made prior to user migration

db/migrate/20110222070136_insert_user_in_all_posts.rb

@@ -0,0 +1,13 @@
+class InsertUserInAllPosts < ActiveRecord::Migration
+  def self.up
+    user = User.find(:first)
+    Post.where(:user_id => nil).each do |post|
+      post.user = user;
+      post.save
+    end
+
+  end
+
+  def self.down
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20110221020819) do
+ActiveRecord::Schema.define(:version => 20110222070136) do
 
   create_table "posts", :force => true do |t|
     t.text     "body"