I''m slogging through the book and ran into a validation that tests for uniqueness of the "title" for my shopping cart. It''s obvious from looking at the database that this is not a property that is incorporated into the database itself but in the ruby code that acts as the model. I have a serious problem with this... First, I know that someone will eventually plug into the database directly and modify the data. I''ve been doing this stuff too long to believe otherwise. Second, this is much more intensive than just plugging in a unique index requirement on the database. I would like to know IF there is a way to designate these data integrity checks into the database via the rails framework and if not, has there been any discussion to doing this? The database is going to be much better at validating it''s data than the framework will because it''s absolute.