Issue thephpleague#19 Add getTransactionId() to SIMcompleteAuthorize.php for access to custom field.

Author: judgej

src/Message/AbstractRequest.php

@@ -11,7 +11,7 @@
 abstract class AbstractRequest extends CommonAbstractRequest
 {
     /**
-     * Recommended custom field name to send the transaction ID to the notify handler.
+     * Custom field name to send the transaction ID to the notify handler.
      */
     const TRANSACTION_ID_PARAM = 'omnipay_transaction_id';
 

src/Message/SIMCompleteAuthorizeRequest.php

@@ -9,6 +9,15 @@
  */
 class SIMCompleteAuthorizeRequest extends AbstractRequest
 {
+    /**
+     * Get the transaction ID passed in through the custom field.
+     * This is used to look up the transaction in storage.
+     */
+    public function getTransactionId()
+    {
+        return $this->httpRequest->request->get(static::TRANSACTION_ID_PARAM);
+    }
+
     public function getData()
     {
         // The hash sent in the callback from the Authorize.Net gateway.