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<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Migration_Add_referrers extends CI_Migration {
public function up()
{
$this->db->query("
CREATE TABLE `invitations` (
`user` int(8) unsigned NOT NULL,
`key` varchar(16) CHARACTER SET ascii NOT NULL,
`date` int(11) unsigned NOT NULL,
PRIMARY KEY (`key`),
KEY `user` (`user`),
KEY `date` (`date`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin
");
$this->db->query("
ALTER TABLE `users`
ADD `referrer` INT(8) UNSIGNED NOT NULL DEFAULT '0'
");
}
public function down()
{
$this->db->query("
ALTER TABLE `users`
DROP `referrer`
");
$this->dbforge->drop_table('invitations');
}
}
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