From: Phillip Gawlowski Date: 2011-01-04T03:38:43+09:00 Subject: Re: Validates is exists On Mon, Jan 3, 2011 at 7:14 PM, Jose tomas R. wrote: > Event has_and_belongs_to_many :users > User  has_and_belongs_to_many :events > > Im trying to verify that user doesnt signup more than one time 1) Rails questions get better service one link over in the Rails forum. :) 2) Given that there's dozens of free email services out there and making up a fake name is trivial, how do you suppose to stop the user signing up multiple times, anyway? Short of using credit card numbers, and I doubt you can verify those with the issuers, anyway (PCI compliance is not something you want to burden yourself with). -- Phillip Gawlowski Though the folk I have met, (Ah, how soon!) they forget When I've moved on to some other place, There may be one or two, When I've played and passed through, Who'll remember my song or my face.