From 17ecdd29f01ef4851a81e65a07f7247f76844d7d Mon Sep 17 00:00:00 2001
From: jerome mouneyrac <jerome@moodle.com>
Date: Tue, 9 Feb 2010 09:26:03 +0000
Subject: [PATCH] webservice MDL-16805 fix REST server bug:  empty list
 (<MULTIPLE></MULTIPLE>) without php error

---
 webservice/rest/locallib.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/webservice/rest/locallib.php b/webservice/rest/locallib.php
index edb42da34f5..92e9b5be42d 100644
--- a/webservice/rest/locallib.php
+++ b/webservice/rest/locallib.php
@@ -139,8 +139,10 @@ class webservice_rest_server extends webservice_base_server {
 
         } else if ($desc instanceof external_multiple_structure) {
             $mult = '<MULTIPLE>'."\n";
-            foreach ($returns as $val) {
-                $mult .= self::xmlize_result($val, $desc->content);
+            if (!empty($returns)) {
+                foreach ($returns as $val) {
+                    $mult .= self::xmlize_result($val, $desc->content);
+                } 
             }
             $mult .= '</MULTIPLE>'."\n";
             return $mult;