From a7b41a385818a4236a49aeebab6d447d60b84f58 Mon Sep 17 00:00:00 2001
From: pichetp <pichetp>
Date: Sat, 20 Sep 2008 20:16:55 +0000
Subject: [PATCH] MDL-15358 negative data   between ()  merge from 1.9 as this
 file is no more in HEAD

---
 question/type/datasetdependent/abstractqtype.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/question/type/datasetdependent/abstractqtype.php b/question/type/datasetdependent/abstractqtype.php
index a4ef6942252..75505e9a749 100644
--- a/question/type/datasetdependent/abstractqtype.php
+++ b/question/type/datasetdependent/abstractqtype.php
@@ -79,6 +79,9 @@ class question_dataset_dependent_questiontype extends default_questiontype {
 
     function substitute_variables($str, $dataset) {
         foreach ($dataset as $name => $value) {
+            if($value < 0 ){
+                $str = str_replace('{'.$name.'}', '('.$value.')', $str);
+            } else {
             $str = str_replace('{'.$name.'}', $value, $str);
         }
         return $str;