Validate field not in model?

I want to validate a field in my form that's not an attribute in the
model. How do I do this?

define it as a getter and setter.

Ok, I did it. But in the model I have validates_presence_of, and even
though the field is filled, I keep getting the blank error.

Nevermind, getter was returning a user object instead of a string.
fixed. :slight_smile:

Hi Mike. Can you share the code snippet for the getter and setter methods you used, thanks.