xref: /webtrees/app/Statistics/Google/ChartNoChildrenFamilies.php (revision 83615acfc72bfb50678c6481f2a00bab04041a87) 
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 */
17declare(strict_types=1);
18
19namespace Fisharebest\Webtrees\Statistics\Google;
20
21use Fisharebest\Webtrees\I18N;
22use Fisharebest\Webtrees\Statistics\Service\CenturyService;
23use Fisharebest\Webtrees\Tree;
24use Illuminate\Database\Capsule\Manager as DB;
25use Illuminate\Database\Query\JoinClause;
26use stdClass;
27
28/**
29 * A chart showing the number of families with no children by century.
30 */
31class ChartNoChildrenFamilies
32{
33    /**
34     * @var Tree
35     */
36    private $tree;
37
38    /**
39     * @var CenturyService
40     */
41    private $century_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    }
53
54    /**
55     * Returns the related database records.
56     *
57     * @param int $year1
58     * @param int $year2
59     *
60     * @return stdClass[]
61     */
62    private function queryRecords(int $year1, int $year2): array
63    {
64        $query = DB::table('families')
65            ->selectRaw('ROUND((d_year + 49) / 100) AS century')
66            ->selectRaw('COUNT(*) AS total')
67            ->join('dates', static function (JoinClause $join): void {
68                $join->on('d_file', '=', 'f_file')
69                    ->on('d_gid', '=', 'f_id');
70            })
71            ->where('f_file', '=', $this->tree->id())
72            ->where('f_numchil', '=', 0)
73            ->where('d_fact', '=', 'MARR')
74            ->whereIn('d_type', ['@#DGREGORIAN@', '@#DJULIAN@'])
75            ->groupBy(['century'])
76            ->orderBy('century');
77
78        if ($year1 >= 0 && $year2 >= 0) {
79            $query->whereBetween('d_year', [$year1, $year2]);
80        }
81
82        return $query->get()->all();
83    }
84
85    /**
86     * Create a chart of children with no families.
87     *
88     * @param int $no_child_fam The number of families with no children
89     * @param int $year1
90     * @param int $year2
91     *
92     * @return string
93     */
94    public function chartNoChildrenFamilies(
95        int $no_child_fam,
96        int $year1 = -1,
97        int $year2 = -1
98    ): string {
99        $data = [
100            [
101                I18N::translate('Century'),
102                I18N::translate('Total')
103            ]
104        ];
105
106        $total = 0;
107
108        foreach ($this->queryRecords($year1, $year2) as $record) {
109            $total += $record->total;
110
111            $data[] = [
112                $this->century_service->centuryName((int) $record->century),
113                $record->total
114            ];
115        }
116
117        if ($total) {
118            $data[] = [
119                I18N::translateContext('unknown century', 'Unknown'),
120                $no_child_fam - $total
121            ];
122        }
123
124        $chart_title   = I18N::translate('Number of families without children');
125        $chart_options = [
126            'title' => $chart_title,
127            'subtitle' => '',
128            'legend' => [
129                'position'  => 'none',
130            ],
131            'vAxis' => [
132                'title' => I18N::translate('Total families'),
133            ],
134            'hAxis' => [
135                'title' => I18N::translate('Century'),
136            ],
137            'colors' => [
138                '#84beff'
139            ],
140        ];
141
142        return view(
143            'statistics/other/charts/column',
144            [
145                'data'          => $data,
146                'chart_options' => $chart_options,
147                'chart_title'   => $chart_title,
148            ]
149        );
150    }
151}
152