From a9a02e9170fda0b9913527cf710b421326fa50aa Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Wed, 3 Sep 2014 11:39:21 +0800
Subject: [PATCH] MDL-20367 Grades: Allow real numbers as grade boundaries

Patch by Huy Hoang (I just git-ified it).
---
 grade/edit/letter/edit_form.php | 30 +++++++++++++-----------------
 grade/edit/letter/index.php     |  3 ++-
 2 files changed, 15 insertions(+), 18 deletions(-)

diff --git a/grade/edit/letter/edit_form.php b/grade/edit/letter/edit_form.php
index baa4087db52..ae103fbce34 100644
--- a/grade/edit/letter/edit_form.php
+++ b/grade/edit/letter/edit_form.php
@@ -46,38 +46,34 @@ class edit_letter_form extends moodleform {
         $gradeletter       = get_string('gradeletter', 'grades');
         $gradeboundary     = get_string('gradeboundary', 'grades');
 
-        $percentages = array(-1 => get_string('unused', 'grades'));
-        for ($i=100; $i > -1; $i--) {
-            $percentages[$i] = "$i %";
-        }
-
-        for($i=1; $i<$num+1; $i++) {
+        for ($i=1; $i<$num+1; $i++) {
             $gradelettername = 'gradeletter'.$i;
             $gradeboundaryname = 'gradeboundary'.$i;
 
-            $mform->addElement('text', $gradelettername, $gradeletter." $i");
-            if ($i == 1) {
-                $mform->addHelpButton($gradelettername, 'gradeletter', 'grades');
-            }
+            $entry = array();
+            $entry[] = $mform->createElement('text', $gradelettername, $gradeletter . " $i");
             $mform->setType($gradelettername, PARAM_TEXT);
 
             if (!$admin) {
                 $mform->disabledIf($gradelettername, 'override', 'notchecked');
-                $mform->disabledIf($gradelettername, $gradeboundaryname, 'eq', -1);
             }
 
-            $mform->addElement('select', $gradeboundaryname, $gradeboundary." $i", $percentages);
-            if ($i == 1) {
-                $mform->addHelpButton($gradeboundaryname, 'gradeboundary', 'grades');
-            }
-            $mform->setDefault($gradeboundaryname, -1);
-            $mform->setType($gradeboundaryname, PARAM_INT);
+            $entry[] = $mform->createElement('static', '', '', '&ge;');
+            $entry[] = $mform->createElement('text', $gradeboundaryname, $gradeboundary." $i");
+            $entry[] = $mform->createElement('static', '', '', '%');
+            $mform->addGroup($entry, 'gradeentry'.$i, $gradeletter." $i", array(' '), false);
+
+            $mform->setType($gradeboundaryname, PARAM_FLOAT);
 
             if (!$admin) {
                 $mform->disabledIf($gradeboundaryname, 'override', 'notchecked');
             }
         }
 
+        if ($num > 0) {
+            $mform->addHelpButton('gradeentry1', 'gradeletter', 'grades');
+        }
+
         // hidden params
         $mform->addElement('hidden', 'id');
         $mform->setType('id', PARAM_INT);
diff --git a/grade/edit/letter/index.php b/grade/edit/letter/index.php
index d0dc35a3d34..19743672f9d 100644
--- a/grade/edit/letter/index.php
+++ b/grade/edit/letter/index.php
@@ -146,7 +146,8 @@ if (!$edit) {
                 if ($letter == '') {
                     continue;
                 }
-                $letters[$data->$gradeboundaryname] = $letter;
+                // The keys need to be strings so floats are not truncated.
+                $letters[strval($data->$gradeboundaryname)] = $letter;
             }
         }
         krsort($letters, SORT_NUMERIC);
-- 
2.36.1