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...ename validates_presence_of :filename end class PropertyItem < ActiveRecord::Base validates_presence_of :name end What I''m trying to achieve is a class inheritance tree with multiple STIs. So, Image would have a column caption:string in it''s table, and UploadFile a column fiilename:string, whereas PropertyItem would have created_at, updated_at and such. Is this possible at all? I''m really stumped... thanks! -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Go...