From 2ee13c5c8b4b48cb7f02affdda72dd5bd7e30175 Mon Sep 17 00:00:00 2001
From: skodak <skodak>
Date: Sat, 27 Oct 2007 11:42:34 +0000
Subject: [PATCH] MFC: fixed error when no scale present

---
 lib/gradelib.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/gradelib.php b/lib/gradelib.php
index c4494790097..86f69017566 100644
--- a/lib/gradelib.php
+++ b/lib/gradelib.php
@@ -522,7 +522,10 @@ function grade_format_gradevalue($value, &$grade_item, $localized=true, $display
     switch ($displaytype) {
         case GRADE_DISPLAY_TYPE_REAL:
             if ($grade_item->gradetype == GRADE_TYPE_SCALE) {
-                $scale = $grade_item->load_scale();
+                if (!$scale = $grade_item->load_scale()) {
+                    return get_string('error');
+                }
+
                 $value = (int)bounded_number($grade_item->grademin, $value, $grade_item->grademax);
                 return format_string($scale->scale_items[$value-1]);