Active Record Inheritance in Rails (ARI) December 9, 2010May 10, 2011 by sandipransing, posted in Ruby on Rails >Active Record Inheritance (ARI) http://d1.scribdassets.com/ScribdViewer.swf?document_id=44922200&access_key=key-2ix0qbm381eltbaykpu7&page=1&viewMode=list
Josh Software 