From e6976a8458aa14ac800eb87f71d7d1a6fa436561 Mon Sep 17 00:00:00 2001
From: Sam Minnee <sam@silverstripe.com>
Date: Tue, 19 Oct 2010 00:53:21 +0000
Subject: [PATCH] BUGFIX Count() call on a non-object in
 File::BackLinkTrackingCount() (from r109079)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@112773 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 filesystem/File.php | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/filesystem/File.php b/filesystem/File.php
index a771143c1..8cdda3d11 100755
--- a/filesystem/File.php
+++ b/filesystem/File.php
@@ -169,7 +169,12 @@ class File extends DataObject {
 	 * @return Integer
 	 */
 	function BackLinkTrackingCount() {
-		return $this->BackLinkTracking()->Count();
+		$pages = $this->BackLinkTracking();
+		if($pages) {
+			return $pages->Count();
+		} else {
+			return 0;
+		}
 	}
 
 	/**
@@ -194,7 +199,8 @@ class File extends DataObject {
 	protected function onAfterDelete() {
 		parent::onAfterDelete();
 
-		if($brokenPages = $this->BackLinkTracking()) {
+		$brokenPages = $this->BackLinkTracking();
+		if($brokenPages) {
 			$origStage = Versioned::current_stage();
 
 			// This will syncLinkTracking on draft