From 8fce70c6673fc30d8cb3d7c859e3fbcf53e34125 Mon Sep 17 00:00:00 2001
From: niekt0 <niekt0@kyberia.cz>
Date: Fri, 12 Nov 2010 23:05:01 +0100
Subject: [PATCH] warning fix

---
 wwwroot/inc/permissions.inc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/wwwroot/inc/permissions.inc b/wwwroot/inc/permissions.inc
index 64da8ef..e6c2eb9 100644
--- a/wwwroot/inc/permissions.inc
+++ b/wwwroot/inc/permissions.inc
@@ -5,8 +5,13 @@ class permissions {
 function isHierarch($node) {
 
 	global $db;
-	$user_id=$_SESSION['user_id'];
+	if (IsSet($_SESSION['user_id'])) {
+	        $user_id=$_SESSION['user_id'];
+	} else {
+	        $user_id=0;
+	}
 	if (!$user_id) return false;
+
 	$node_vector=chunk_split($node['node_vector'],VECTOR_CHARS,';');
 	$hierarchy=explode(';',$node_vector);
 	foreach ($hierarchy as $hierarch) {
-- 
2.30.2