root/tags/MvBlog-2.2/upgrade.php

<?php
/**
 * MvBlog -- An open source no-nosense blogtool
 *
 * Copyright (C) 2005-2007, Michiel van Baak
 * Michiel van Baak <mvanbaak@users.sourceforge.net>
 *
 * See http://dev.mvblog.org for more information on MvBlog.
 * That page also provides Bugtrackers, Filereleases etc.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 *
 * @package MvBlog
 * @author Michiel van Baak
 * @version %%VERSION%%
 * @copyright 2005-2007 Michiel van Baak
 */
/**
 * Uprade mvblog to the latest version
 */
if (array_key_exists("mode", $_REQUEST))
    $mode = $_REQUEST["mode"];
else
    $mode = "";

require_once("common/mvblog_upgrade.php");
$updater = new Mvblog_upgrade();

if (array_key_exists("dbversion", $updater->settings))
    $latest_version = $updater->settings["dbversion"];
else
    $latest_version = 0;

echo "looking up files for db type <b>".$updater->db->phptype."</b> starting at version <b>".$latest_version."</b>...<br />";


$patches = $updater->get_patchfiles($mode);
if (!count($patches))
    die("nothing to do. Your mvblog is already up-to-date.");

echo "Creating backup of your current database<br />";
$backup = $updater->create_backups();

foreach ($patches as $patch) {
    if (!$updater->apply_dbpatch($patch, $mode))
        die("something went wrong with patchfile $patch. Rollback to backup.");
    echo "applied patchfile $patch. <br>";
    /* put last version in var so we can update settings table later */
    if ($updater->lastpatch > $latest_version)
        $latest_version = $updater->lastpatch;
}
$updater->set_latest_version($latest_version);
echo "Your MvBlog installation is updated. Have fun.";
?>