/**
  * Create an exception, using a static code value found in the Rframe
  * class.
  *
  * @param int     $code
  * @param string  $message (optional)
  */
 public function __construct($code, $message = null)
 {
     if (!$message) {
         $message = Rframe::get_message($code);
     }
     parent::__construct($message, $code);
 }