From f1fb33cc559c7b80dfd3c797533ce4f92079e273 Mon Sep 17 00:00:00 2001
From: Toby Zerner <toby.zerner@gmail.com>
Date: Thu, 3 Mar 2016 12:51:41 +1030
Subject: [PATCH] Fix fatal error when deleting a discussion forever. closes
 #842

---
 framework/core/src/Core/Listener/DiscussionMetadataUpdater.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/core/src/Core/Listener/DiscussionMetadataUpdater.php b/framework/core/src/Core/Listener/DiscussionMetadataUpdater.php
index cf1ebb3fc..ee35c24e2 100755
--- a/framework/core/src/Core/Listener/DiscussionMetadataUpdater.php
+++ b/framework/core/src/Core/Listener/DiscussionMetadataUpdater.php
@@ -54,7 +54,7 @@ class DiscussionMetadataUpdater
 
         $discussion = $event->post->discussion;
 
-        if ($discussion->posts()->count() === 0) {
+        if ($discussion && $discussion->posts()->count() === 0) {
             $discussion->delete();
         }
     }