From 60df5f2e7565466b552c454d16947de64d183cd0 Mon Sep 17 00:00:00 2001
From: root <root@surveys.acspri.org.au>
Date: Thu, 5 Sep 2013 15:53:25 +1000
Subject: [PATCH] Fixes:1220515 Database error when displaying questionnaire

---
 .../limesurvey/classes/expressions/LimeExpressionManager.php   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/limesurvey/classes/expressions/LimeExpressionManager.php b/include/limesurvey/classes/expressions/LimeExpressionManager.php
index f0fd1d81..659e125b 100644
--- a/include/limesurvey/classes/expressions/LimeExpressionManager.php
+++ b/include/limesurvey/classes/expressions/LimeExpressionManager.php
@@ -4689,6 +4689,8 @@
 
                 foreach ($updatedValues as $key=>$value)
                 {
+		    if (!empty($key)) //queXS Addition
+		    {
                     $val = (is_null($value) ? NULL : $value['value']);
                     $type = (is_null($value) ? NULL : $value['type']);
 
@@ -4725,6 +4727,7 @@
                     {
                         $setter[] = db_quote_id($key) . "=" . db_quoteall($val,true);
                     }
+		    }
                 }
                 $query .= implode(', ', $setter);
                 $query .= " WHERE ID=";