From b31f8d294d295d0d6c873718996047cbd67a81ad Mon Sep 17 00:00:00 2001
From: nicolasconnault <nicolasconnault>
Date: Fri, 8 May 2009 13:31:30 +0000
Subject: [PATCH] MDL-19121 Not allowing negative values for droplow and
 keephigh: capping at 0. Merged from MOODLE_19_STABLE

---
 grade/edit/tree/index.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/grade/edit/tree/index.php b/grade/edit/tree/index.php
index c4dbd53f47..6ec894b6f0 100644
--- a/grade/edit/tree/index.php
+++ b/grade/edit/tree/index.php
@@ -233,6 +233,10 @@ if ($form_key && $data = data_submitted()) {
         // Grade category text inputs
         if (preg_match('/(aggregation|droplow|keephigh)_([0-9]*)/', $key, $matches) && confirm_sesskey()) {
             $value = required_param($matches[0], PARAM_INT);
+
+            // Do not allow negative values
+            $value = ($value < 0) ? 0 : $value;
+
             $param = $matches[1];
             $a->id = $matches[2];
 
-- 
2.39.5