Cloudlog/application/migrations/001_add_lotw_credentials.php

<?php defined('BASEPATH') or exit('No direct script access allowed');

class Migration_add_lotw_credentials extends CI_Migration
{

	public function up()
	{
		$fields = array(
			'user_lotw_name VARCHAR(32) DEFAULT NULL',
			'user_lotw_password VARCHAR(64) DEFAULT NULL'
		);

		$this->dbforge->add_column('users', $fields);
	}

	public function down()
	{
		$this->dbforge->drop_column('users', 'user_lotw_name');
		$this->dbforge->drop_column('users', 'user_lotw_password');
	}
}