xref: /webtrees/app/Statistics/Google/ChartNoChildrenFamilies.php (revision 2b7831a14182e4d89e3229f7209297b3171d67b2) 
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2019 webtrees development team
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16declare(strict_types=1);
17
18namespace Fisharebest\Webtrees\Statistics\Google;
19
20use Fisharebest\Webtrees\I18N;
21use Fisharebest\Webtrees\Statistics\Service\CenturyService;
22use Fisharebest\Webtrees\Tree;
23use Illuminate\Database\Capsule\Manager as DB;
24use Illuminate\Database\Query\JoinClause;
25
26/**
27 * A chart showing the number of families with no children by century.
28 */
29class ChartNoChildrenFamilies
30{
31    /**
32     * @var Tree
33     */
34    private $tree;
35
36    /**
37     * @var CenturyService
38     */
39    private $century_service;
40
41    /**
42     * Constructor.
43     *
44     * @param Tree $tree
45     */
46    public function __construct(Tree $tree)
47    {
48        $this->tree            = $tree;
49        $this->century_service = new CenturyService();
50    }
51
52    /**
53     * Returns the related database records.
54     *
55     * @param int $year1
56     * @param int $year2
57     *
58     * @return \stdClass[]
59     */
60    private function queryRecords(int $year1, int $year2): array
61    {
62        $query = DB::table('families')
63            ->selectRaw('ROUND((d_year + 49) / 100) AS century')
64            ->selectRaw('COUNT(*) AS total')
65            ->join('dates', function (JoinClause $join): void {
66                $join->on('d_file', '=', 'f_file')
67                    ->on('d_gid', '=', 'f_id');
68            })
69            ->where('f_file', '=', $this->tree->id())
70            ->where('f_numchil', '=', 0)
71            ->where('d_fact', '=', 'MARR')
72            ->whereIn('d_type', ['@#DGREGORIAN@', '@#DJULIAN@'])
73            ->groupBy(['century'])
74            ->orderBy('century');
75
76        if ($year1 >= 0 && $year2 >= 0) {
77            $query->whereBetween('d_year', [$year1, $year2]);
78        }
79
80        return $query->get()->all();
81    }
82
83    /**
84     * Create a chart of children with no families.
85     *
86     * @param int $no_child_fam The number of families with no children
87     * @param int $year1
88     * @param int $year2
89     *
90     * @return string
91     */
92    public function chartNoChildrenFamilies(
93        int $no_child_fam,
94        int $year1 = -1,
95        int $year2 = -1
96    ): string {
97        $data = [
98            [
99                I18N::translate('Century'),
100                I18N::translate('Total')
101            ]
102        ];
103
104        $total = 0;
105
106        foreach ($this->queryRecords($year1, $year2) as $record) {
107            $total += $record->total;
108
109            $data[] = [
110                $this->century_service->centuryName((int) $record->century),
111                $record->total
112            ];
113        }
114
115        if ($total) {
116            $data[] = [
117                I18N::translateContext('unknown century', 'Unknown'),
118                $no_child_fam - $total
119            ];
120        }
121
122        $chart_title   = I18N::translate('Number of families without children');
123        $chart_options = [
124            'title' => $chart_title,
125            'subtitle' => '',
126            'legend' => [
127                'position'  => 'none',
128            ],
129            'vAxis' => [
130                'title' => I18N::translate('Total families'),
131            ],
132            'hAxis' => [
133                'title' => I18N::translate('Century'),
134            ],
135            'colors' => [
136                '#84beff'
137            ],
138        ];
139
140        return view(
141            'statistics/other/charts/column',
142            [
143                'data'          => $data,
144                'chart_options' => $chart_options,
145                'chart_title'   => $chart_title,
146            ]
147        );
148    }
149}
150