<?php
namespace Fisharebest\Webtrees;

/**
 * webtrees: online genealogy
 * Copyright (C) 2015 webtrees development team
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

// Update the database schema from version 19 to 20
// - fix some broken data caused by a bug

Database::exec("UPDATE `##default_resn` SET xref    =NULL WHERE xref    =''");
Database::exec("UPDATE `##default_resn` SET tag_type=NULL WHERE tag_type=''");

// Update the version to indicate success
Site::setPreference($schema_name, $next_version);
