magento 如何在跳轉到支付介面前自動發送郵件

在magento系統中，預設是在支付成功後發送確認訂單郵件的，但是有時我們會碰到支付不成功的情
況或者客戶不想支付，那我們怎樣才能在支付前就發送訂單郵件呢？首先我們開啟appcodecoreMageCheckoutModelType檔案夾下
的Onepage.php檔案，找到saveOrder()方法，可以看到有這麼幾句：

        $order = $service->getOrder();
        if ($order) {
           
Mage::dispatchEvent('checkout_type_onepage_save_order_after',
array('order'=>$order, 'quote'=>$this->getQuote()));

            /**
             * a flag to set that there will be redirect to third party after confirmation
             * eg: paypal standard ipn
             */
            $redirectUrl = $this->getQuote()->getPayment()->getOrderPlaceRedirectUrl();
            /**
             * we only want to send to customer about new order when there is no redirect to third party
             */
            if(!$redirectUrl){
                try {
                    $order->sendNewOrderEmail();
                } catch (Exception $e) {
                    Mage::logException($e);
                }
            }

            // add order information to the session
            $this->_checkoutSession->setLastOrderId($order->getId())
                ->setRedirectUrl($redirectUrl)
                ->setLastRealOrderId($order->getIncrementId());

            // as well a billing agreement can be created
            $agreement = $order->getPayment()->getBillingAgreement();
            if ($agreement) {
                $this->_checkoutSession->setLastBillingAgreementId($agreement->getId());
            }
        }

可以發現magento系統是在儲存訂單資料後就立即跳轉到支付URL上去了，而如果沒有支付跳轉，則會發送郵件。那我們現在就可以把
            if(!$redirectUrl){
                try {
                    $order->sendNewOrderEmail();
                } catch (Exception $e) {
                    Mage::logException($e);
                }
            }

中的if條件注釋掉，這樣就可以保證無論是否存在支付跳轉，系統都會發送訂單確認郵件。