From 674b2990695fad1c2f95d555e9cecf4835d9d3b0 Mon Sep 17 00:00:00 2001
From: Colin Kuskie <colink@perldreamer.com>
Date: Thu, 29 Apr 2010 14:51:06 -0700
Subject: [PATCH] Handle $0 checkouts.  Still requires that ANY payment plugin
 be selected.

---
 lib/WebGUI/Shop/Cart.pm | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/WebGUI/Shop/Cart.pm b/lib/WebGUI/Shop/Cart.pm
index 8d8244da5..eaffdce21 100644
--- a/lib/WebGUI/Shop/Cart.pm
+++ b/lib/WebGUI/Shop/Cart.pm
@@ -913,6 +913,14 @@ sub www_update {
             $self->update({shippingAddressId => $self->get('billingAddressId')});
         }
         if ($self->readyForCheckout()) {
+            my $total = $self->calculateTotal;
+            if (sprintf('%.2f', $total + $self->calculateShopCreditDeduction($total)) eq '0.00') {
+                my $transaction = WebGUI::Shop::Transaction->create($session, {self => $self});
+                $transaction->completePurchase('zero', 'success', 'success');
+                $self->onCompletePurchase;
+                $transaction->sendNotifications();
+                return $transaction->thankYou();
+            }
             my $gateway = WebGUI::Shop::Pay->new($session)->getPaymentGateway($self->get('gatewayId'));
             return $gateway->www_getCredentials;
         }