From 392238d6269a68074be500dbf3de982e799b0a52 Mon Sep 17 00:00:00 2001
From: thepurpleblob <thepurpleblob>
Date: Wed, 8 Aug 2007 15:23:11 +0000
Subject: [PATCH] Was not checking error return from plugin export properly

---
 question/format/xml/format.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/question/format/xml/format.php b/question/format/xml/format.php
index 515e917412..27d340888b 100755
--- a/question/format/xml/format.php
+++ b/question/format/xml/format.php
@@ -986,9 +986,10 @@ class qformat_xml extends qformat_default {
             break;
         default:
             // try support by optional plugin
-            if (!$expout .= $this->try_exporting_using_qtypes( $question->qtype, $question )) { 
+            if (!$data = $this->try_exporting_using_qtypes( $question->qtype, $question )) { 
                 error( "Unsupported question type $question->qtype" );
             }
+            $expout .= $data;
         }
 
         // close the question tag
-- 
2.39.5