Added creator and updator

db/migrate/20150129144652_add_creator_and_updater.rb

@@ -0,0 +1,15 @@
+class AddCreatorAndUpdater < ActiveRecord::Migration
+  def change
+    %w(address contact_disclosure contact contact_status country dnskey 
+    domain_contact domain domain_status domain_transfer api_user keyrelay 
+    legal_document message nameserver registrar 
+    reserved_domain setting user zonefile_setting
+    ).each do |name|
+      table_name = name.tableize
+      remove_column table_name, :creator_id, :string
+      remove_column table_name, :updater_id, :string
+      add_column table_name, :creator_str, :string
+      add_column table_name, :updator_str, :string
+    end
+  end
+end