From 7aa9e45f56d74d9424baa3dde444870610cd1f90 Mon Sep 17 00:00:00 2001
From: "Eloy Lafuente (stronk7)" <stronk7@moodle.org>
Date: Thu, 5 May 2011 17:42:41 +0200
Subject: [PATCH] MDL-27325 mysql: Avoid some implicit casting from float to
 varchar/text

---
 lib/dml/mysqli_native_moodle_database.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/dml/mysqli_native_moodle_database.php b/lib/dml/mysqli_native_moodle_database.php
index b3c1cebdde0..243f29dbeb6 100644
--- a/lib/dml/mysqli_native_moodle_database.php
+++ b/lib/dml/mysqli_native_moodle_database.php
@@ -579,6 +579,10 @@ class mysqli_native_moodle_database extends moodle_database {
             if ($column->meta_type == 'I' or $column->meta_type == 'F' or $column->meta_type == 'N') {
                 $value = 0; // prevent '' problems in numeric fields
             }
+        // Any float value being stored in varchar or text field is converted to string to avoid
+        // any implicit conversion by MySQL
+        } else if (is_float($value) and ($column->meta_type == 'C' or $column->meta_type == 'X')) {
+            $value = "$value";
         }
         // workaround for problem with wrong enums in mysql - TODO: Out in Moodle 2.1
         if (!empty($column->enums)) {