Magento - How to run code when my order is canceled or returned

Question

My payment module should send notifications to the payment service if the order is canceled or returned. I assume that the Cancel button on the order page (in the admin backend) will cancel the order and that the Credit Memo button (after creating the invoice) will return the order.

How do I run code for these events? I tried using the cancel () method in my payment method model, but the code did not execute.

Answer 1

It looks like your payment method does not use transactions or does not generate an authorization transaction identifier. This is a common mistake of beginners in the development of Payment gateways.

-, - :

class MyBest_Payment_Model_Method extends Mage_Payment_Model_Method_Abstract
{
    protected $_canAuthorize            = true; // Set true, if you have authorization step.
    protected $_canCapture              = true; // Set true, if you payment method allows to perform capture transaction (usally only credit cards methods)
    protected $_canRefund               = true; // Set true, if online refunds are available
    protected $_canVoid                 = true; // Set true, if you can cancel authorization via API online

    public function authorize(Varien_Object $payment, $amount)
    { 

        // ... You payment method authorization goes here ...
        // Here goes retrieving or generation non-zero, 
        // non-null value as transaction ID. 
        $transactionId = $api->someCall(); 
        // Setting tranasaction id to payment object
        // It is improtant, if you want perform online actions 
        // in future with this order!
        $payment->setTransactionId($transactionId); 

        // ... some other your actions ... 
        return $this;
    }

    public function void(Varien_Object $payment)
    {
        // ... some actions for sending cancel notification to your payment gateway
    }

    public function refund(Varien_Object $payment, $amount)
    {
        // ... some actions for performing an online refund ...
    }
}

Answer 2

Magento . , , , Magento , .

, , . , , .

File: app/code/core/Mage/Payment/Model/Method/Abstract.php

class abstract class Mage_Payment_Model_Method_Abstract
{

    /**
     * Authorize
     *
     * @param   Varien_Object $orderPayment
     * @return  Mage_Payment_Model_Abstract
     */
    public function authorize(Varien_Object $payment, $amount)
    ...     
    /**
     * Capture payment
     *
     * @param   Varien_Object $orderPayment
     * @return  Mage_Payment_Model_Abstract
     */
    public function capture(Varien_Object $payment, $amount)    
    ... 

    /**
     * Void payment
     *
     * @param   Varien_Object $invoicePayment
     * @return  Mage_Payment_Model_Abstract
     */
    public function void(Varien_Object $payment)
    ...    

    /**
     * Refund money
     *
     * @param   Varien_Object $invoicePayment
     * @return  Mage_Payment_Model_Abstract
     */
    //public function refund(Varien_Object $payment, $amount)
    public function refund(Varien_Object $payment, $amount)
    ...


    /**
     * Cancel payment (GoogleCheckout)
     *
     * @param   Varien_Object $invoicePayment
     * @return  Mage_Payment_Model_Abstract
     */
    public function cancel(Varien_Object $payment)
    ...

, , refund - , , capture - -. , cancel - Google Checkout. , .

Answer 3

Magento , . ( , ) . , Magneto .

In addition, it would be useful to consider existing payment extensions. I won’t be surprised if Google Checkout sends similar events to cancel the order. There will be many payment methods in the extension repository to watch.

Good luck