From f34634eaf3e4aa38155843529a11f5932ca645bd Mon Sep 17 00:00:00 2001
From: Andrew Davis <andrew@moodle.com>
Date: Fri, 26 Apr 2013 10:37:52 +0800
Subject: [PATCH] MDL-35859 core_grade:fixed an optional parameter call to use
 the array version

---
 grade/edit/tree/calculation.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grade/edit/tree/calculation.php b/grade/edit/tree/calculation.php
index 21e2d7dd11f..bd275513d8a 100644
--- a/grade/edit/tree/calculation.php
+++ b/grade/edit/tree/calculation.php
@@ -30,7 +30,7 @@ require_once 'calculation_form.php';
 $courseid  = required_param('courseid', PARAM_INT);
 $id        = required_param('id', PARAM_INT);
 $section   = optional_param('section', 'calculation', PARAM_ALPHA);
-$idnumbers = optional_param('idnumbers', null, PARAM_RAW);
+$idnumbers = optional_param_array('idnumbers', null, PARAM_RAW);
 
 $url = new moodle_url('/grade/edit/tree/calculation.php', array('id'=>$id, 'courseid'=>$courseid));
 if ($section !== 'calculation') {