/**
  * Still playing around with how I want to handle permissions.
  * This is a method that can be called before each action to 
  * see if the user can do what they are asking to.
  * 
  * @access public
  * @return void
  */
 protected function userCan()
 {
     // User can edit themselves
     if ($this->id == $this->user->getId()) {
         return true;
     }
     // TODO: Need to expand upon this? Probably...
     // we can add in what the user is trying to do, and check perms
     // on top of just ownership. This will do for now.
     if ($this->id) {
         if ($this->user->isParentOf($this->id) || $this->user->isSuperAdmin()) {
             return true;
         }
     } else {
         // If there was no id already set, we are probably adding a folder.
         // TODO: Need to handle perms somehow here.
         return true;
     }
     // Set this entity to not valid so we do not give anything away
     // TODO: Maybe make a default() method that we can reset a built entity to it's defaults.
     // defaults could be set from the entity profile.
     $this->valid = false;
     $this->error = 'User does not have permission to execute the request.';
     //$this->error = 'ID does not exist for this user.';
     return false;
 }