From 6562ad2f2bed53df8eb1285d3f5da9fb20ecc066 Mon Sep 17 00:00:00 2001
From: Sean Harvey <sean@silverstripe.com>
Date: Mon, 18 Feb 2013 16:42:32 +1300
Subject: [PATCH] Check for !empty() on includeSubclasses so you don't get an
 undefined notice

---
 code/solr/SolrIndex.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/solr/SolrIndex.php b/code/solr/SolrIndex.php
index 79a7e23..8a48435 100644
--- a/code/solr/SolrIndex.php
+++ b/code/solr/SolrIndex.php
@@ -348,7 +348,7 @@ abstract class SolrIndex extends SearchIndex {
 		$classq = array();
 
 		foreach ($query->classes as $class) {
-			if ($class['includeSubclasses']) $classq[] = 'ClassHierarchy:'.$class['class'];
+			if (!empty($class['includeSubclasses'])) $classq[] = 'ClassHierarchy:'.$class['class'];
 			else $classq[] = 'ClassName:'.$class['class'];
 		}