1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2023 webtrees development team 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <https://www.gnu.org/licenses/>. 16 */ 17 18declare(strict_types=1); 19 20namespace Fisharebest\Webtrees\Elements; 21 22use Fisharebest\Webtrees\Registry; 23use Fisharebest\Webtrees\Tree; 24 25/** 26 * UID fields 27 */ 28class Uid extends AbstractElement 29{ 30 protected const MAXIMUM_LENGTH = 36; 31 32 /** 33 * Create a default value for this element. 34 * 35 * @param Tree $tree 36 * 37 * @return string 38 */ 39 public function default(Tree $tree): string 40 { 41 if ($tree->getPreference('GENERATE_UIDS') === '1') { 42 return Registry::idFactory()->uuid(); 43 } 44 45 return ''; 46 } 47} 48