Bugfix inside delete.php

delete.php

@@ -31,12 +31,17 @@
 // end include class.secure.php
 
 // Delete DB-Entries (messages and settings)
-$sql = 'SELECT `parent` FROM '.TABLE_PREFIX.'mod_foldergallery_jq_categories WHERE section_id='.$section_id.';';
-$query = $database->query($sql);
-while($cat = $query->fetchRow( )) {
-	$sql = 'DELETE FROM '.TABLE_PREFIX.'mod_foldergallery_jq_files WHERE parent_id='.$cat['parent'];
-	$database->query($sql);
-}	
+$temp_parent_ids = array();
+$database->execute_query(
+	'SELECT `id` FROM `'.TABLE_PREFIX.'mod_foldergallery_jq_categories` WHERE `section_id`='.$section_id.';',
+	true,
+	$temp_parent_ids
+);
+
+foreach($temp_parent_ids as $parent) {
+	$database->query('DELETE FROM `'.TABLE_PREFIX.'mod_foldergallery_jq_files` WHERE `parent_id`='.$parent['id']);
+}
+
 $database->query("DELETE FROM `".TABLE_PREFIX."mod_foldergallery_jq_settings` WHERE `page_id` = '$page_id' AND `section_id` = '$section_id'");
 $database->query("DELETE FROM `".TABLE_PREFIX."mod_foldergallery_jq_categories` WHERE `section_id` = '$section_id'");