From 75101d329f2fffc339187ec025f6f539bb64a962 Mon Sep 17 00:00:00 2001
From: Sam Minnee <sam@silverstripe.com>
Date: Tue, 19 Oct 2010 05:08:46 +0000
Subject: [PATCH] MINOR Reverted regression in r112272 (from r112278)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@112949 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 core/model/MySQLDatabase.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/model/MySQLDatabase.php b/core/model/MySQLDatabase.php
index 916e289ab..5c179662f 100755
--- a/core/model/MySQLDatabase.php
+++ b/core/model/MySQLDatabase.php
@@ -321,7 +321,10 @@ class MySQLDatabase extends SS_Database {
 	 * @param string $newName The new name of the field
 	 */
 	public function renameField($tableName, $oldName, $newName) {
-		$this->query("ALTER TABLE \"$tableName\" CHANGE \"$oldName\" \"$newName\" " . $fieldList[$oldName]);
+		$fieldList = $this->fieldList($tableName); 
+		if(array_key_exists($oldName, $fieldList)) { 
+			$this->query("ALTER TABLE \"$tableName\" CHANGE \"$oldName\" \"$newName\" " . $fieldList[$oldName]); 
+		}
 	}
 	
 	private static $_cache_collation_info = array();