Version 4.3.6

system/Content/Search/Mysql/Query.php

@@ -94,7 +94,7 @@ class _Query extends \IPS\Content\Search\Query
 		foreach ( $contentFilters as $filter )
 		{
 			$clause = array();
-			if ( $type )
+			if ( $type and $filter->itemClass )
 			{
 				$this->itemClasses[] = $filter->itemClass;
 			}
@@ -116,16 +116,19 @@ class _Query extends \IPS\Content\Search\Query
 				$clause[] = \IPS\Db::i()->in( 'index_container_id', $filter->containerIds, $filter->containerIdFilter === FALSE );
 			}
 			
-			$itemClass = $filter->itemClass;
-			if ( isset( $itemClass::$containerNodeClass ) )
+			if ( $filter->itemClass )
 			{
-				$containerClass  = $itemClass::$containerNodeClass;
-				$unsearchableIds = $containerClass::unsearchableNodeIds();
-				
-				if ( $unsearchableIds != NULL )
+				$itemClass = $filter->itemClass;
+				if ( isset( $itemClass::$containerNodeClass ) )
 				{
-					$clause[] = \IPS\Db::i()->in( 'index_container_id', $unsearchableIds, TRUE );
-				}	
+					$containerClass  = $itemClass::$containerNodeClass;
+					$unsearchableIds = $containerClass::unsearchableNodeIds();
+					
+					if ( $unsearchableIds != NULL )
+					{
+						$clause[] = \IPS\Db::i()->in( 'index_container_id', $unsearchableIds, TRUE );
+					}	
+				}
 			}
 
 			/* Are we excluding certain container classes? */