Rails - Jul 2006 - dynamic database switching..

I''ve developped a rails app and am trying to improve the training mode
i''ve
started to develop for it (its an inward facing rails app BTW). Anyway at 
the moment i have it set up so while in training mode it flags any orders 
created as ''training'' using a bitwise op. While changes to
orders aren''t
''real'' in training mode changes to the other tables do in fact
take effect.
what i want to do to improve the training mode is to make another database 
that mirrors all the tables used by the app and have the models dynamically 
switch to the training database when training mode is turned on. Anyway to 
do this other than create a whole new set of models and have an if statement 
determine which to call before any model is called on??

thanks in advance