xref: /webtrees/app/Statistics/Google/ChartDeath.php (revision fcfa147e10aaa6c7ff580c29bd6e5b88666befc1) 
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\Statistics\Google;
21
22use Fisharebest\Webtrees\I18N;
23use Fisharebest\Webtrees\Module\ModuleThemeInterface;
24use Fisharebest\Webtrees\Statistics\Service\CenturyService;
25use Fisharebest\Webtrees\Statistics\Service\ColorService;
26use Fisharebest\Webtrees\Tree;
27use Illuminate\Database\Capsule\Manager as DB;
28use stdClass;
29
30use function count;
31
32/**
33 * A chart showing the deaths by century.
34 */
35class ChartDeath
36{
37    /**
38     * @var Tree
39     */
40    private $tree;
41
42    /**
43     * @var ModuleThemeInterface
44     */
45    private $theme;
46
47    /**
48     * @var CenturyService
49     */
50    private $century_service;
51
52    /**
53     * @var ColorService
54     */
55    private $color_service;
56
57    /**
58     * Constructor.
59     *
60     * @param Tree $tree
61     */
62    public function __construct(Tree $tree)
63    {
64        $this->tree            = $tree;
65        $this->theme           = app(ModuleThemeInterface::class);
66        $this->century_service = new CenturyService();
67        $this->color_service   = new ColorService();
68    }
69
70    /**
71     * Returns the related database records.
72     *
73     * @return stdClass[]
74     */
75    private function queryRecords(): array
76    {
77        $query = DB::table('dates')
78            ->selectRaw('ROUND((d_year + 49) / 100) AS century')
79            ->selectRaw('COUNT(*) AS total')
80            ->where('d_file', '=', $this->tree->id())
81            ->where('d_year', '<>', 0)
82            ->where('d_fact', '=', 'DEAT')
83            ->whereIn('d_type', ['@#DGREGORIAN@', '@#DJULIAN@'])
84            ->groupBy(['century'])
85            ->orderBy('century');
86
87        return $query->get()->all();
88    }
89
90    /**
91     * Create a chart of death places.
92     *
93     * @param string|null $color_from
94     * @param string|null $color_to
95     *
96     * @return string
97     */
98    public function chartDeath(string $color_from = null, string $color_to = null): string
99    {
100        $chart_color1 = (string) $this->theme->parameter('distribution-chart-no-values');
101        $chart_color2 = (string) $this->theme->parameter('distribution-chart-high-values');
102        $color_from   = $color_from ?? $chart_color1;
103        $color_to     = $color_to   ?? $chart_color2;
104
105        $data = [
106            [
107                I18N::translate('Century'),
108                I18N::translate('Total')
109            ],
110        ];
111
112        foreach ($this->queryRecords() as $record) {
113            $data[] = [
114                $this->century_service->centuryName((int) $record->century),
115                $record->total
116            ];
117        }
118
119        $colors = $this->color_service->interpolateRgb($color_from, $color_to, count($data) - 1);
120
121        return view(
122            'statistics/other/charts/pie',
123            [
124                'title'  => I18N::translate('Deaths by century'),
125                'data'   => $data,
126                'colors' => $colors,
127            ]
128        );
129    }
130}
131