title: CakePHP: use validation functions directly
body: <p>I have an AJAX controller that handles all of the AJAX related calls on my CakePHP website. One of those AJAX calls is sending an e-mail, and that function doesn't transact any data to or from the database. I would still like to be able to validate things like an e-mail address while I am doing this AJAX e-mail, but I am not sure how to do that using CakePHP. Can I access the validation functions directly or is there another/better way?</p>
  
  <p>Thanks!</p>