From 5228024ba5cce3988abf1ea727b0efdecb5d373d Mon Sep 17 00:00:00 2001
From: Patrick Nelson <patnelson@ebay.com>
Date: Tue, 23 Feb 2016 17:52:15 -0500
Subject: [PATCH] FIX for #78 to workaround ->alterCanIncludeInGoogleSitemap()
 not working due to core bug with ->invokeWithExtensions() not allowing
 references.

---
 code/extensions/GoogleSitemapExtension.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/code/extensions/GoogleSitemapExtension.php b/code/extensions/GoogleSitemapExtension.php
index 6db716c..8e95992 100644
--- a/code/extensions/GoogleSitemapExtension.php
+++ b/code/extensions/GoogleSitemapExtension.php
@@ -33,7 +33,13 @@ class GoogleSitemapExtension extends DataExtension
             $can = $this->owner->getGooglePriority();
         }
 
-        $this->owner->invokeWithExtensions('alterCanIncludeInGoogleSitemap', $can);
+        // Allow override. In this case, since this can return multiple results, we'll use an "and" based policy. That is
+        // if any value is false then the current value will be false. Only only if all are true will we then return true.
+        $override = $this->owner->invokeWithExtensions('alterCanIncludeInGoogleSitemap', $can);
+        if ($override) {
+            $can = min($override);
+        }
+
 
         return $can;
     }