1<?php
2class HordePermsUpgradeParentNull extends Horde_Db_Migration_Base
3{
4    public function up()
5    {
6        $this->changeColumn('horde_perms', 'perm_parents', 'string', array('limit' => 255, 'null' => true));
7    }
8
9    public function down()
10    {
11         $this->changeColumn('horde_perms', 'perm_parents', 'string', array('limit' => 255, 'null' => false));
12    }
13
14}