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

class Migration_Add_users extends CI_Migration {

	public function up()
	{
		$this->db->query("
			CREATE TABLE IF NOT EXISTS `users` (
			  `id` int(8) UNSIGNED NOT NULL AUTO_INCREMENT,
			  `username` varchar(32) COLLATE ascii_general_ci NOT NULL,
			  `password` varchar(60) COLLATE ascii_general_ci NOT NULL,
			  `email` varchar(255) COLLATE ascii_general_ci NOT NULL,
			  PRIMARY KEY (`id`)
			) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
		");

		$this->db->query("
			CREATE TABLE IF NOT EXISTS `ci_sessions` (
				`session_id` varchar(40) NOT NULL DEFAULT '0',
				`ip_address` varchar(16) NOT NULL DEFAULT '0',
				`user_agent` varchar(120) NOT NULL,
				`last_activity` int(10) unsigned NOT NULL DEFAULT '0',
				`user_data` text NOT NULL,
				PRIMARY KEY (`session_id`),
				KEY `last_activity_idx` (`last_activity`)
			) ENGINE=InnoDB DEFAULT CHARSET=utf8;
		");

		$this->db->query("
			ALTER TABLE `files`
			ADD `user` INT(8) UNSIGNED NOT NULL DEFAULT '0',
			ADD INDEX (`user`)
		");
	}

	public function down()
	{
		$this->dbforge->drop_table('users');
		$this->dbforge->drop_table('ci_sessions');
		$this->db->query("
			ALTER TABLE `files`
			DROP `user`
		");
	}
}