/** * @return Payment_Model_DbTable_Items */ public static function getInstance() { if (is_null(self::$_instance)) { self::$_instance = new self(); } return self::$_instance; }
public function getItem() { if (is_null($this->_item)) { $itemModel = Payment_Model_DbTable_Items::getInstance(); $this->_item = $itemModel->findByCode($this->_code); } return $this->_item; }