xref: /webtrees/app/Http/RequestHandlers/DeleteRecord.php (revision 3b3db8adf3fd54bb8a196a781da9123905e54adf) 
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2019 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 <http://www.gnu.org/licenses/>.
16 */
17
18declare(strict_types=1);
19
20namespace Fisharebest\Webtrees\Http\RequestHandlers;
21
22use Fisharebest\Webtrees\Auth;
23use Fisharebest\Webtrees\FlashMessages;
24use Fisharebest\Webtrees\Gedcom;
25use Fisharebest\Webtrees\GedcomRecord;
26use Fisharebest\Webtrees\I18N;
27use Fisharebest\Webtrees\Tree;
28use Psr\Http\Message\ResponseInterface;
29use Psr\Http\Message\ServerRequestInterface;
30use Psr\Http\Server\RequestHandlerInterface;
31
32use function assert;
33use function preg_match;
34use function preg_match_all;
35use function preg_replace;
36use function response;
37
38/**
39 * Controller for edit forms and responses.
40 */
41class DeleteRecord implements RequestHandlerInterface
42{
43    /**
44     * Delete a record.
45     *
46     * @param ServerRequestInterface $request
47     *
48     * @return ResponseInterface
49     */
50    public function handle(ServerRequestInterface $request): ResponseInterface
51    {
52        $tree = $request->getAttribute('tree');
53        assert($tree instanceof Tree);
54
55        $xref   = $request->getAttribute('xref');
56        $record = GedcomRecord::getInstance($xref, $tree);
57
58        Auth::checkRecordAccess($record, true);
59
60        if ($record && Auth::isEditor($record->tree()) && $record->canShow() && $record->canEdit()) {
61            // Delete links to this record
62            foreach ($record->linkingRecords() as $linker) {
63                $old_gedcom = $linker->gedcom();
64                $new_gedcom = $this->removeLinks($old_gedcom, $record->xref());
65                if ($old_gedcom !== $new_gedcom) {
66                    // If we have removed a link from a family to an individual, and it has only one member
67                    if (preg_match('/^0 @' . Gedcom::REGEX_XREF . '@ FAM/', $new_gedcom) && preg_match_all('/\n1 (HUSB|WIFE|CHIL) @(' . Gedcom::REGEX_XREF . ')@/', $new_gedcom, $match) == 1) {
68                        // Delete the family
69                        $family = GedcomRecord::getInstance($xref, $tree);
70                        /* I18N: %s is the name of a family group, e.g. “Husband name + Wife name” */
71                        FlashMessages::addMessage(I18N::translate('The family “%s” has been deleted because it only has one member.', $family->fullName()));
72                        $family->deleteRecord();
73                        // Delete any remaining link to this family
74                        if ($match) {
75                            $relict     = GedcomRecord::getInstance($match[2][0], $tree);
76                            $new_gedcom = $relict->gedcom();
77                            $new_gedcom = $this->removeLinks($new_gedcom, $linker->xref());
78                            $relict->updateRecord($new_gedcom, false);
79                            /* I18N: %s are names of records, such as sources, repositories or individuals */
80                            FlashMessages::addMessage(I18N::translate('The link from “%1$s” to “%2$s” has been deleted.', $relict->fullName(), $family->fullName()));
81                        }
82                    } else {
83                        // Remove links from $linker to $record
84                        /* I18N: %s are names of records, such as sources, repositories or individuals */
85                        FlashMessages::addMessage(I18N::translate('The link from “%1$s” to “%2$s” has been deleted.', $linker->fullName(), $record->fullName()));
86                        $linker->updateRecord($new_gedcom, false);
87                    }
88                }
89            }
90            // Delete the record itself
91            $record->deleteRecord();
92        }
93
94        return response();
95    }
96
97    /**
98     * Remove all links from $gedrec to $xref, and any sub-tags.
99     *
100     * @param string $gedrec
101     * @param string $xref
102     *
103     * @return string
104     */
105    private function removeLinks($gedrec, $xref): string
106    {
107        $gedrec = preg_replace('/\n1 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[2-9].*)*/', '', $gedrec);
108        $gedrec = preg_replace('/\n2 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[3-9].*)*/', '', $gedrec);
109        $gedrec = preg_replace('/\n3 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[4-9].*)*/', '', $gedrec);
110        $gedrec = preg_replace('/\n4 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[5-9].*)*/', '', $gedrec);
111        $gedrec = preg_replace('/\n5 ' . Gedcom::REGEX_TAG . ' @' . $xref . '@(\n[6-9].*)*/', '', $gedrec);
112
113        return $gedrec;
114    }
115}
116