Fake a composite primary key? Rails

Question

I have a table with id|patient_id|client_id|active. A record is unique by patient_id, client_id meaning there should only be one enrollment per patient per client. Normally I wo

Answer 1

Validations would work (Back them up with a unique index!), but there's no way to get a true composite primary key in vanilla Rails. If you want a real composite primary key, you're going to need a gem/plugin - composite_primary_keys is the one I found, but I'm sure there are others.

Hope this helps!