gallery3/modules/server_add/helpers/server_add_installer.php

<?php defined("SYSPATH") or die("No direct script access.");
/**
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2009 Bharat Mediratta
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */
class server_add_installer {
  static function install() {
    $db = Database::instance();
    $db->query("CREATE TABLE {server_add_files} (
                  `id` int(9) NOT NULL auto_increment,
                  `file` varchar(255) NOT NULL,
                  `item_id` int(9),
                  `parent_id` int(9),
                  `task_id` int(9) NOT NULL,
                  PRIMARY KEY (`id`))
                ENGINE=InnoDB DEFAULT CHARSET=utf8;");
    module::set_version("server_add", 3);
    server_add::check_config();
  }

  static function upgrade($version) {
    $db = Database::instance();
    if ($version == 1) {
      $db->query("CREATE TABLE {server_add_files} (
                    `id` int(9) NOT NULL auto_increment,
                    `task_id` int(9) NOT NULL,
                    `file` varchar(255) NOT NULL,
                    PRIMARY KEY (`id`))
                  ENGINE=InnoDB DEFAULT CHARSET=utf8;");
      module::set_version("server_add", $version = 2);
    }

    if ($version == 2) {
      $db->query("ALTER TABLE {server_add_files} ADD COLUMN `item_id` int(9)");
      $db->query("ALTER TABLE {server_add_files} ADD COLUMN `parent_id` int(9)");
      module::set_version("server_add", $version = 3);
    }
  }

  static function deactivate() {
    site_status::clear("server_add_configuration");
  }
}