objCouponModel->updateProduct($product_id, $coupon_id, $info); } public function removeProduct($product_id, $coupon_id) { return $this->objCouponModel->removeProduct($product_id, $coupon_id); } public function addProduct($product_id, $coupon_id, $ordering=0) { return $this->objCouponModel->addProduct($product_id, $coupon_id, $ordering); } protected function deleteFileBeforeDeleteItem($item_id): bool { // TODO: Implement deleteFileBeforeDeleteItem() method. return true; } }