1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2021 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\Tree; 23use Fisharebest\Webtrees\Webtrees; 24 25/** 26 * ANCESTRAL_FILE_NUMBER := {Size=1:20} 27 * A system identification name which was obtained through the GEDCOM 28 * registration process. This name must be unique from any other product. 29 * Spaces within the name must be substituted with a 0x5F (underscore _) 30 * so as to create one word. 31 */ 32class ApprovedSystemId extends AbstractElement 33{ 34 protected const MAXIMUM_LENGTH = 20; 35 36 /** 37 * Create a default value for this element. 38 * 39 * @param Tree $tree 40 * 41 * @return string 42 */ 43 public function default(Tree $tree): string 44 { 45 return Webtrees::NAME; 46 } 47} 48