> because anything that queries in rails uses AR and that's often done in both lib code and controller code How is that different from any other framework ever

> because anything that queries in rails uses AR and that's often done in both lib code and controller code How is that different from any other framework ever? You have to query the DB somewhere. Rails makes it incredibly easy to swap out databases. Much more so than any other platform I can think of. Nothing is making you use AR at all. This is a non issue.