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; 23 24use function e; 25use function rawurlencode; 26use function strtoupper; 27 28/** 29 * A custom field used in _LOC records 30 */ 31class GovIdentifier extends AbstractElement 32{ 33 protected const EXTERNAL_URL = 'https://gov.genealogy.net/item/show/'; 34 35 protected const MAXIMUM_LENGTH = 12; 36 37 /** 38 * Convert a value to a canonical form. 39 * 40 * @param string $value 41 * 42 * @return string 43 */ 44 public function canonical(string $value): string 45 { 46 return strtoupper(parent::canonical($value)); 47 } 48 49 /** 50 * Display the value of this type of element. 51 * 52 * @param string $value 53 * @param Tree $tree 54 * 55 * @return string 56 */ 57 public function value(string $value, Tree $tree): string 58 { 59 $canonical = $this->canonical($value); 60 $url = static::EXTERNAL_URL . rawurlencode($canonical); 61 62 return '<a dir="ltr" href="' . e($url) . '" rel="nofollow">' . e($canonical) . '</a>'; 63 } 64} 65