From e1d6c46b7d5e3d82dc6953af29f0b02ccb03e2dc Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Wed, 28 Nov 2012 19:06:20 +0200
Subject: [PATCH] Fix #2037

---
 system/libraries/Migration.php | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index e96791cefa0..bf2d18e0789 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -233,11 +233,6 @@ public function version($target_version)
 				$this->_error_string = sprintf($this->lang->line('migration_class_doesnt_exist'), $class);
 				return FALSE;
 			}
-			elseif ( ! is_callable(array($class, $method)))
-			{
-				$this->_error_string = sprintf($this->lang->line('migration_missing_'.$method.'_method'), $class);
-				return FALSE;
-			}
 
 			$previous = $number;
 
@@ -247,8 +242,15 @@ public function version($target_version)
 				($method === 'down' && $number <= $current_version && $number > $target_version)
 			)
 			{
+				$instance = new $class();
+				if ( ! is_callable(array($instance, $method)))
+				{
+					$this->_error_string = sprintf($this->lang->line('migration_missing_'.$method.'_method'), $class);
+					return FALSE;
+				}
+
 				log_message('debug', 'Migrating '.$method.' from version '.$current_version.' to version '.$number);
-				call_user_func(array(new $class, $method));
+				call_user_func(array($instance, $method));
 				$current_version = $number;
 				$this->_update_version($current_version);
 			}