migration = $factory; } public function doUpdate(Updater $updater) { $updater->executeMigrations(__FILE__, $this->getMigrations($updater)); } public function getMigrations(Updater $updater) { return array( $this->migration->db->changeColumnTypes('alert_log', array( 'value_old' => 'DECIMAL (20,3) DEFAULT NULL', 'value_new' => 'DECIMAL (20,3) DEFAULT NULL' ))->addErrorCodeToIgnore(Updater\Migration\Db::ERROR_CODE_TABLE_NOT_EXISTS), ); } }