What and where is the method register! in restful authentication?

rubyonrails-talk
1

A newbie question - I am learning restful authentication but I cant find what or where the method register! is when used in the following code:

@user.register! if @user && @user.valid?

Thanks.

2

User acts as a state machine. Transitions automatically get methods that are named after them with a "!" at the end. Look for a transition called register and it shows from what state to what state this "register" can occur.

Ramon Tayag

3

Thanks Ramon,

Never heard of finite state machines or acts_as_state_machine before, I have been chasing it on the web - more to learn.