From 800bfd9f84b3f0d7e46ed6d5c372c08050c45a7c Mon Sep 17 00:00:00 2001
From: wangchunsheng <chunsheng@cnezsoft.com>
Date: Fri, 19 Feb 2010 09:00:29 +0000
Subject: [PATCH]  * fix the error when parent module doesn't exits.

---
 trunk/module/tree/model.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/trunk/module/tree/model.php b/trunk/module/tree/model.php
index 503bb61616..458f24a5d3 100644
--- a/trunk/module/tree/model.php
+++ b/trunk/module/tree/model.php
@@ -192,6 +192,7 @@ class treeModel extends model
         $sql  = "SELECT path FROM " . TABLE_MODULE . " WHERE id = '$moduleID'";
         $path = $this->dbh->query($sql)->fetchColumn();
         $path = substr($path, 1, -1);
+        if(!$path) return array();
         $sql = "SELECT * FROM " . TABLE_MODULE . " WHERE id IN($path) ORDER BY grade";
         $parents = $this->dbh->query($sql)->fetchAll();
         return $parents;