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VirtueMartControllerPluginresponse called more than once - why?

Started by michthom, January 02, 2012, 21:49:12 PM

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michthom

Crossposted from the General board:
http://forum.virtuemart.net/index.php?topic=95153.0

I've got Paypal (Sandbox) configured and working for VM2.0.0 on J!1.7.3. All my shoppers are anonymous (not registered / logged in).
Mostly works well, but for some reason that I can't yet fathom, successful orders return to the VM store but instead of seeing your order details, the shopper sees an error:

You must provide at least one recipient email address.
Invalid address: You must provide at least one recipient email address.


It seems in my case that when Paypal confirms the payment, VM2.0.0 on J!1.7.3 is trying to send 4 emails, of which only three get delivered and one fails:

Delivered to Shop admin address:
[7cbcae91], Confirmed order by Mr Mike Thomson, total £40.00
[], Confirmed order by Mr Mike Thomson, total £10.00

Delivered to shopper's address:
[7cbcae91], Confirmed order at Online Gallery, total £40.00

It seems that the spurious emails both relate to an empty order with a default shipping cost of £10 and no order items. I think this is what's triggering the error, as there's no shopper associated with the empty order, therefore no email address when it's attempted to be sent to them.

OK, a rather unsatisfactory workaround follows;
o The desired order is placed as you'd expect (this is good)
o You don't get the spurious email to the store admin address (this is good)
o The shopper doesn't get the 'you must provide at least 1 recipient emaill address' error (this is good too)
o The shopper doesn't see the page with their order on it, just a 'thanks for your order' message (this is sub-optimal).

However, I have no idea yet why this behaviour (duplicate triggers from Paypal?) is being provoked.

Anyone else able / interested in digging deeper?

Cheers
Mike

# diff -u ./components/com_virtuemart/controllers/*pluginresponse.php
--- ./components/com_virtuemart/controllers/ORIGINAL_pluginresponse.php   2012-01-02 19:55:57.000000000 +0100
+++ ./components/com_virtuemart/controllers/pluginresponse.php   2012-01-02 21:30:34.000000000 +0100
@@ -85,10 +85,14 @@
          $order = new VirtueMartModelOrders();
          $orderitems = $order->getOrder($virtuemart_order_id);
          //vmdebug('PaymentResponseReceived CART', $orderitems);
-         $cart->sentOrderConfirmedEmail($orderitems);
-         //We delete the old stuff

-         $cart->emptyCart();
+         if ( ! empty($orderitems['items'])) {
+            $cart->sentOrderConfirmedEmail($orderitems);
+            //We delete the old stuff
+   
+            $cart->emptyCart();
+         }
+
          break; // This was the active plugin, so there's nothing left to do here.
           }
       }

michthom

I have no idea why this happened, but after testing on a fresh install of J!1.7.3 and VM2.0.0 (stable) I can't reproduce the problem, so it's clearly a PEBCAK - Problem Exists Between Chair And Keyboard.