From 7e0218e79f0fc50aa8f4e5c1a53f1ffcc2c301c3 Mon Sep 17 00:00:00 2001
From: Tim Hunt <T.J.Hunt@open.ac.uk>
Date: Tue, 8 Mar 2011 10:43:48 +0000
Subject: [PATCH] MDL-26724 notice from numerical qtype when no answer is
 given.

---
 question/type/numerical/display.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/question/type/numerical/display.html b/question/type/numerical/display.html
index 12d678d507e..b8b9704e904 100644
--- a/question/type/numerical/display.html
+++ b/question/type/numerical/display.html
@@ -63,9 +63,9 @@
     ?> size="<?php echo $textlength;?>"/>
     <?php if ($state->responses['unit'] != '') echo $feedbackimgunit; 
     if ($options->feedback &&  $question->options->unitgradingtype == 1 && ! $valid_numerical_unit && ! $answerasterisk ){
-        if ( $empty_unit) {
+        if (!empty($empty_unit)) {
             print_string('unitmandatory', 'qtype_numerical'); 
-        }else {
+        } else {
             if(isset($question->options->units) && count($question->options->units) > 0){
                 $found = 0 ;
                 $valid_unit_found = 0 ;