From f8100e36290e82ebfd3ea2f5e694b98ad8f5a786 Mon Sep 17 00:00:00 2001
From: jgraham909 <jgraham909>
Date: Mon, 17 Jul 2006 22:38:58 +0000
Subject: [PATCH] Fix for grade_letter table and how MySQL version 5.0.3+
 handles DECIMAL fields

Versions: 5.0.3+ truncate to 99.99 if a value of 100.00 or greater is
input for grade_high or grade_low.

See the following for more info:
http://dev.mysql.com/doc/refman/5.0/en/precision-math-decimal-changes.html
---
 lib/db/mysql.php | 6 ++++++
 lib/db/mysql.sql | 4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/db/mysql.php b/lib/db/mysql.php
index 0109ccf3162..d585f1c04a8 100644
--- a/lib/db/mysql.php
+++ b/lib/db/mysql.php
@@ -1978,6 +1978,12 @@ function main_upgrade($oldversion=0) {
         table_column("user", "lastIP", "lastip", "varchar", "15", "", "", "not null", "currentlogin");
     }
     
+    // Change in MySQL 5.0.3 concerning how decimals are stored
+    if ($oldversion < 2006070300) {
+        execute_sql("ALTER TABLE `{$CFG->prefix}grade_letter MODIFY `grade_high` DECIMAL(5,2)", FALSE);
+        execute_sql("ALTER TABLE `{$CFG->prefix}grade_letter MODIFY `grade_low` DECIMAL(5,2)", FALSE);
+    }
+    
     return $result;
 }
 
diff --git a/lib/db/mysql.sql b/lib/db/mysql.sql
index 20976e780b4..332de89a399 100644
--- a/lib/db/mysql.sql
+++ b/lib/db/mysql.sql
@@ -341,8 +341,8 @@ CREATE TABLE `prefix_grade_letter` (
   `id` int(10) unsigned NOT NULL auto_increment,
   `courseid` int(10) unsigned NOT NULL default '0',
   `letter` varchar(8) NOT NULL default 'NA',
-  `grade_high` decimal(4,2) NOT NULL default '100.00',
-  `grade_low` decimal(4,2) NOT NULL default '0.00',
+  `grade_high` decimal(5,2) NOT NULL default '100.00',
+  `grade_low` decimal(5,2) NOT NULL default '0.00',
   PRIMARY KEY  (`id`),
   KEY `courseid` (`courseid`)
 ) TYPE=MyISAM ;