title: How to prevent double / duplicate form submissions in CakePHP?
body: <p>I discovered the Security Component in CakePHP helps to prevent CSRF by adding tokens as hidden values to forms.</p>
  
  <p>What I was wondering is if there was anyway to prevent duplicate form submissions using this Component or some other component/helper?</p>
  
  <p>In previous projects, I used a unique hash saved in a session, which is read then deleted upon submit. A repeated submit would have that same hash and an error would be produced.</p>
  
  <p>thanks</p>