public function addOrder($ordernumber, $ticketquantity)
 {
     $order = new Order();
     $order->ordernumber = $ordernumber;
     $order->ticketquantity = $ticketquantity;
     //insert//
     $saved = $order->save();
     //verify insertion//
     if ($saved) {
         $array = array('success' => true, 'order' => $order);
         return json_encode($array);
     } else {
         $array = array('success' => false, 'message' => 'An error occurred');
         return json_encode($array);
     }
 }