xref: /webtrees/app/Http/RequestHandlers/DeleteRecord.php (revision 099c152ecdeb7f506fcd1f74f062dca63f6c8e7d) 
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\Http\RequestHandlers;
21
22use Fisharebest\Webtrees\Auth;
23use Fisharebest\Webtrees\Family;
24use Fisharebest\Webtrees\FlashMessages;
25use Fisharebest\Webtrees\Gedcom;
26use Fisharebest\Webtrees\I18N;
27use Fisharebest\Webtrees\Individual;
28use Fisharebest\Webtrees\Registry;
29use Fisharebest\Webtrees\Services\LinkedRecordService;
30use Fisharebest\Webtrees\Validator;
31use Psr\Http\Message\ResponseInterface;
32use Psr\Http\Message\ServerRequestInterface;
33use Psr\Http\Server\RequestHandlerInterface;
34
35use function e;
36use function preg_match_all;
37use function preg_replace;
38use function response;
39use function sprintf;
40
41/**
42 * Delete a record.
43 */
44class DeleteRecord implements RequestHandlerInterface
45{
46    private LinkedRecordService $linked_record_service;
47
48    /**
49     * @param LinkedRecordService $linked_record_service
50     */
51    public function __construct(LinkedRecordService $linked_record_service)
52    {
53        $this->linked_record_service = $linked_record_service;
54    }
55
56    /**
57     * Delete a record.
58     *
59     * @param ServerRequestInterface $request
60     *
61     * @return ResponseInterface
62     */
63    public function handle(ServerRequestInterface $request): ResponseInterface
64    {
65        $tree   = Validator::attributes($request)->tree();
66        $xref   = Validator::attributes($request)->isXref()->string('xref');
67        $record = Registry::gedcomRecordFactory()->make($xref, $tree);
68        $record = Auth::checkRecordAccess($record, true);
69
70        if (Auth::isEditor($record->tree()) && $record->canShow() && $record->canEdit()) {
71            // Delete links to this record
72            foreach ($this->linked_record_service->allLinkedRecords($record) as $linker) {
73                $old_gedcom = $linker->gedcom();
74                $new_gedcom = $this->removeLinks($old_gedcom, $record->xref());
75                if ($old_gedcom !== $new_gedcom) {
76                    // If we have removed a link from a family to an individual, and it now has only one member and no genealogy facts
77                    if (
78                        $linker instanceof Family &&
79                        preg_match('/\n1 (ANUL|CENS|DIV|DIVF|ENGA|MAR[BCLRS]|RESI|EVEN)/', $new_gedcom, $match) !== 1 &&
80                        preg_match_all('/\n1 (HUSB|WIFE|CHIL) @(' . Gedcom::REGEX_XREF . ')@/', $new_gedcom, $match) === 1
81                    ) {
82                        // Delete the family
83                        /* I18N: %s is the name of a family group, e.g. “Husband name + Wife name” */
84                        FlashMessages::addMessage(I18N::translate('The family “%s” has been deleted because it only has one member.', $linker->fullName()));
85                        $linker->deleteRecord();
86                        // Delete the remaining link to this family
87                        $relict = Registry::gedcomRecordFactory()->make($match[2][0], $tree);
88                        if ($relict instanceof Individual) {
89                            $relict_gedcom = $this->removeLinks($relict->gedcom(), $linker->xref());
90                            $relict->updateRecord($relict_gedcom, false);
91                            /* I18N: %s are names of records, such as sources, repositories or individuals */
92                            FlashMessages::addMessage(I18N::translate('The link from “%1$s” to “%2$s” has been deleted.', sprintf('<a href="%1$s" class="alert-link">%2$s</a>', e($relict->url()), $relict->fullName()), $linker->fullName()));
93                        }
94                    } else {
95                        // Remove links from $linker to $record
96                        /* I18N: %s are names of records, such as sources, repositories or individuals */
97                        FlashMessages::addMessage(I18N::translate('The link from “%1$s” to “%2$s” has been deleted.', sprintf('<a href="%1$s" class="alert-link">%2$s</a>', e($linker->url()), $linker->fullName()), $record->fullName()));
98                        $linker->updateRecord($new_gedcom, false);
99                    }
100                }
101            }
102            // Delete the record itself
103            $record->deleteRecord();
104        }
105
106        return response();
107    }
108
109    /**
110     * Remove all links from $gedrec to $xref, and any sub-tags.
111     *
112     * @param string $gedrec
113     * @param string $xref
114     *
115     * @return string
116     */
117    private function removeLinks(string $gedrec, string $xref): string
118    {
119        $gedrec = preg_replace('/\n1 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[2-9].*)*/', '', $gedrec);
120        $gedrec = preg_replace('/\n2 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[3-9].*)*/', '', $gedrec);
121        $gedrec = preg_replace('/\n3 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[4-9].*)*/', '', $gedrec);
122        $gedrec = preg_replace('/\n4 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[5-9].*)*/', '', $gedrec);
123        $gedrec = preg_replace('/\n5 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[6-9].*)*/', '', $gedrec);
124
125        return $gedrec;
126    }
127}
128