xref: /webtrees/app/Schema/Migration37.php (revision e72c24d6f8af5daa6dc0f4942f8c8f018f99ab41)
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\Schema;
21
22use Illuminate\Database\Capsule\Manager as DB;
23use Illuminate\Database\Query\Builder;
24use Illuminate\Database\Query\Expression;
25use Illuminate\Database\Schema\Blueprint;
26
27/**
28 * Upgrade the database schema from version 37 to version 38.
29 */
30class Migration37 implements MigrationInterface
31{
32    /**
33     * Upgrade to to the next version
34     *
35     * @return void
36     */
37    public function upgrade(): void
38    {
39        // These tables were created by webtrees 1.x, and may not exist if we first installed webtrees 2.x
40        DB::schema()->dropIfExists('site_access_rule');
41        DB::schema()->dropIfExists('next_id');
42
43        // Split the media table into media/media_file so that we can store multiple media
44        // files in each media object.
45        DB::schema()->create('media_file', static function (Blueprint $table): void {
46            $table->integer('id', true);
47            $table->string('m_id', 20);
48            $table->integer('m_file');
49            $table->string('multimedia_file_refn', 248); // GEDCOM only allows 30 characters
50            $table->string('multimedia_format', 4);
51            $table->string('source_media_type', 15);
52            $table->string('descriptive_title', 248);
53
54            $table->index(['m_id', 'm_file']);
55            $table->index(['m_file', 'm_id']);
56            $table->index(['m_file', 'multimedia_file_refn']);
57            $table->index(['m_file', 'multimedia_format']);
58            $table->index(['m_file', 'source_media_type']);
59            $table->index(['m_file', 'descriptive_title']);
60        });
61
62        if (DB::schema()->hasColumn('media', 'm_filename')) {
63            (new Builder(DB::connection()))->from('media_file')->insertUsing([
64                'm_id',
65                'm_file',
66                'multimedia_file_refn',
67                'multimedia_format',
68                'source_media_type',
69                'descriptive_title',
70            ], function (Builder $query): void {
71                $query->select([
72                    'm_id',
73                    'm_file',
74                    $this->substring('m_filename', 1, 248),
75                    $this->substring('m_ext', 1, 4),
76                    $this->substring('m_type', 1, 15),
77                    $this->substring('m_titl', 1, 248),
78                ])->from('media');
79            });
80
81            // SQLite can only drop one column at a time.
82            DB::schema()->table('media', static function (Blueprint $table): void {
83                $table->dropColumn('m_filename');
84            });
85            DB::schema()->table('media', static function (Blueprint $table): void {
86                $table->dropColumn('m_ext');
87            });
88            DB::schema()->table('media', static function (Blueprint $table): void {
89                $table->dropColumn('m_type');
90            });
91            DB::schema()->table('media', static function (Blueprint $table): void {
92                $table->dropColumn('m_titl');
93            });
94        }
95    }
96
97    /**
98     * @param string $expression
99     * @param int    $start
100     * @param int    $length
101     *
102     * @return Expression
103     */
104    private function substring(string $expression, int $start, int $length): Expression
105    {
106        // Non-standard
107        if (DB::connection()->getDriverName() === 'sqlite') {
108            return new Expression('SUBSTR(' . $expression . ',' . $start . ',' . $length . ')');
109        }
110
111        // SQL-92 standard
112        return new Expression('SUBSTRING(' . $expression . ' FROM ' . $start . ' FOR ' . $length . ')');
113    }
114}
115