public function updateOrderSize($product, $orderSize = 0)
 {
     $returnValue = FALSE;
     if ($this->basketHandler->updateItemOrderSize($product, $orderSize)) {
         $returnValue = TRUE;
     }
     return $returnValue;
 }
 /**
  * @return void
  */
 private function clearBasket()
 {
     $this->basketHandler->updateOrder(array());
 }