Problem with validates_presence_of

Can you paste in your model or post a link to a gist?

http://gist.github.com/481073

in the file :empid attribute is not available in the model.But its throwing Empid can't be blank?.

So whether validates_presence_of will accept non-attributes of the model or not?

You are validating presence of :empid on line 14:

validates_presence_of :name,:empid,:email,:password,:username

I'm not sure I understand the incorrect behavior here.

Actually :empid attribute is not available in model.

My user model is having :name,:email

so as per the validates_presence_of it should take only the attributes :name and :email.

But it is accepting the wrong attributes also.

Whether validates_presence_of will the take model attributes or any word starts with :

I don't think it's the responsibility of Rails validations to make sure that the validations you've defined map to actual database fields. Your validations are model (behavior) logic, not persistence logic. Moreover, you may indeed want to have validations on model attributes that don't exist in the database. In my opinion, this is the correct behavior, not a bug.