From 7a1d3e4db8a33b2ac1c609b6833b96a4c4f6cfa9 Mon Sep 17 00:00:00 2001
From: Adrian Greeve <adrian@moodle.com>
Date: Thu, 10 Apr 2014 17:32:03 +0800
Subject: [PATCH] MDL-45037 gradebook: Allow dashes in xml grade values to be
 ignored.

This was delivering an error message when trying to import an exported
xml file (from Moodle).
---
 grade/import/xml/lib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grade/import/xml/lib.php b/grade/import/xml/lib.php
index 3e059f83c4a..3984cca059f 100644
--- a/grade/import/xml/lib.php
+++ b/grade/import/xml/lib.php
@@ -82,7 +82,7 @@ function import_xml_grades($text, $course, &$error) {
             $newgrade->importer   = $USER->id;
 
             // check grade value exists and is a numeric grade
-            if (isset($result['#']['score'][0]['#'])) {
+            if (isset($result['#']['score'][0]['#']) && $result['#']['score'][0]['#'] !== '-') {
                 if (is_numeric($result['#']['score'][0]['#'])) {
                     $newgrade->finalgrade = $result['#']['score'][0]['#'];
                 } else {