[web2py] Can we have a register decorator?

[Constantine Vasil]

I need the following functionality - I want to send invitations via emails 
which include a link with a code - like /invite/123456. invite function has 
a decorator for login. Because for my app to go viral the sign up process 
needs to be real quick. In this case the first form I need is to show the 
registration form. But because of the login decorator the form shown is the 
login form. If there is a decorator for register it would be easy. But 
because it is not - how to do that?