From 94d354de4a2eea8af1c7833935f419dcfbfd7fa3 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Tue, 28 Apr 2015 23:34:26 +1200
Subject: [PATCH] Fixed BacklinkTracking filter usage

Previous deprecation fixes made this method error out
when called on the root node (ID=0), so when admin/assets is first called.
---
 code/model/SiteTreeFileExtension.php | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/code/model/SiteTreeFileExtension.php b/code/model/SiteTreeFileExtension.php
index 0ec1ad0b..37cccd6c 100644
--- a/code/model/SiteTreeFileExtension.php
+++ b/code/model/SiteTreeFileExtension.php
@@ -72,10 +72,13 @@ class SiteTreeFileExtension extends DataExtension {
 				Please manipluate the returned list directly.', Deprecation::SCOPE_GLOBAL);
 		}
 		
-		$links = $this->owner->getManyManyComponents('BackLinkTracking')
-			->where($filter)
-			->sort($sort)
-			->limit($limit);
+		$links = $this->owner->getManyManyComponents('BackLinkTracking');
+		if($this->owner->ID) {
+			$links = $links
+				->where($filter)
+				->sort($sort)
+				->limit($limit);
+		}
 		$this->owner->extend('updateBackLinkTracking', $links);
 		
 		if(class_exists("Subsite")){