xref: /webtrees/app/Statistics/Google/ChartDivorce.php (revision 34b20f294deb14f65541b617e67c4eb4ff84d013) 
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\Statistics\Google;
21
22use Fisharebest\Webtrees\I18N;
23use Fisharebest\Webtrees\Statistics\Service\CenturyService;
24use Fisharebest\Webtrees\Statistics\Service\ColorService;
25use Fisharebest\Webtrees\Tree;
26use Illuminate\Database\Capsule\Manager as DB;
27use Illuminate\Support\Collection;
28
29use function count;
30use function view;
31
32/**
33 * A chart showing the divorces by century.
34 */
35class ChartDivorce
36{
37    private Tree $tree;
38
39    private CenturyService $century_service;
40
41    private ColorService $color_service;
42
43    /**
44     * Constructor.
45     *
46     * @param Tree $tree
47     */
48    public function __construct(Tree $tree)
49    {
50        $this->tree            = $tree;
51        $this->century_service = new CenturyService();
52        $this->color_service   = new ColorService();
53    }
54
55    /**
56     * Returns the related database records.
57     *
58     * @return Collection<object>
59     */
60    private function queryRecords(): Collection
61    {
62        return DB::table('dates')
63            ->selectRaw('ROUND((d_year + 49) / 100) AS century')
64            ->selectRaw('COUNT(*) AS total')
65            ->where('d_file', '=', $this->tree->id())
66            ->where('d_year', '<>', 0)
67            ->where('d_fact', '=', 'DIV')
68            ->whereIn('d_type', ['@#DGREGORIAN@', '@#DJULIAN@'])
69            ->groupBy(['century'])
70            ->orderBy('century')
71            ->get()
72            ->map(static function (object $row): object {
73                return (object) [
74                    'century' => (int) $row->century,
75                    'total'   => (float) $row->total,
76                ];
77            });
78    }
79
80    /**
81     * General query on divorces.
82     *
83     * @param string|null $color_from
84     * @param string|null $color_to
85     *
86     * @return string
87     */
88    public function chartDivorce(string $color_from = null, string $color_to = null): string
89    {
90        $color_from = $color_from ?? 'ffffff';
91        $color_to   = $color_to ?? '84beff';
92
93        $data = [
94            [
95                I18N::translate('Century'),
96                I18N::translate('Total')
97            ],
98        ];
99
100        foreach ($this->queryRecords() as $record) {
101            $data[] = [
102                $this->century_service->centuryName($record->century),
103                $record->total
104            ];
105        }
106
107        $colors = $this->color_service->interpolateRgb($color_from, $color_to, count($data) - 1);
108
109        return view('statistics/other/charts/pie', [
110            'title'    => I18N::translate('Divorces by century'),
111            'data'     => $data,
112            'colors'   => $colors,
113            'language' => I18N::languageTag(),
114        ]);
115    }
116}
117