Ruby on Rails: Is there a way to make blank form inputs submit nil? [duplicate]

Question

Possible Duplicate:
Make blank params[] nil

Is there a way to make blank form inputs submit nil? Right now, I'm going through and in a before_save manually converting all "" into nil.

This really doesn't seem very DRY, and I feel like I must be missing something.

Answer 1

Check out the attribute_normalizer plugin.