public function getcanbebacklistAction() { $request = $this->getRequest()->getParams(); $key = isset($request['key']) && $request['key'] != '' ? $request['key'] : null; $customer_id = isset($request['customer_id']) && $request['customer_id'] != '' ? $request['customer_id'] : null; $order = new Erp_Model_Sale_Receiveitemsordersale(); echo Zend_Json::encode($order->getCanBeBackQty($key, $customer_id)); exit; }