xref: /webtrees/app/Factories/SlugFactory.php (revision bd055353fafed0c5380d9d8c58326ea55d6ad2e4) 
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2022 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\Factories;
21
22use Fisharebest\Webtrees\Contracts\SlugFactoryInterface;
23use Fisharebest\Webtrees\GedcomRecord;
24use Transliterator;
25
26use function extension_loaded;
27use function preg_replace;
28use function strip_tags;
29use function trim;
30
31/**
32 * Make a slug to be used in the URL of a GedcomRecord.
33 */
34class SlugFactory implements SlugFactoryInterface
35{
36    private ?Transliterator $transliterator = null;
37
38    public function __construct()
39    {
40        if (extension_loaded('intl')) {
41            $ids = Transliterator::listIDs();
42
43            if (in_array('Any-Latin', $ids, true) && in_array('Latin-ASCII', $ids, true)) {
44                $this->transliterator = Transliterator::create('Any-Latin;Latin-ASCII');
45            }
46        }
47    }
48
49    /**
50     * @param GedcomRecord $record
51     *
52     * @return string|null
53     */
54    public function make(GedcomRecord $record): ?string
55    {
56        $slug = strip_tags($record->fullName());
57
58        if ($this->transliterator instanceof Transliterator) {
59            $slug = $this->transliterator->transliterate($slug);
60
61            if ($slug === false) {
62                return null;
63            }
64        }
65
66        $slug = preg_replace('/[^A-Za-z0-9]+/', '-', $slug);
67        $slug = trim($slug, '-');
68
69        if ($slug !== '') {
70            return $slug;
71        }
72
73        return null;
74    }
75}
76