Attention: the original (and probably working ^^) is here: github.com/m4n/validates_captcha
I can't guarantee that it'll work for you.
I've changed the behaviour a little bit, so the Captcha functionality doesn't eager loading all app models. Only the ones with “acts_as_captchable”. This avoids some headache I was having with ActiveRecord mass assignment feature on Rails >= 2.3
Thanks for Martin Andert for this great great solution.
Copyright © 2009 Martin Andert