app/Statistics/Google/ChartNoChildrenFamilies.php
<?php
/**
* webtrees: online genealogy
* Copyright (C) 2023 webtrees development team
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace Fisharebest\Webtrees\Statistics\Google;
use Fisharebest\Webtrees\DB;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Statistics\Service\CenturyService;
use Fisharebest\Webtrees\Tree;
use Illuminate\Database\Query\JoinClause;
use function view;
/**
* A chart showing the number of families with no children by century.
*/
class ChartNoChildrenFamilies
{
private Tree $tree;
private CenturyService $century_service;
/**
* @param CenturyService $century_service
* @param Tree $tree
*/
public function __construct(CenturyService $century_service, Tree $tree)
{
$this->century_service = $century_service;
$this->tree = $tree;
}
/**
* Returns the related database records.
*
* @param int $year1
* @param int $year2
*
* @return array<object>
*/
private function queryRecords(int $year1, int $year2): array
{
$query = DB::table('families')
->selectRaw('ROUND((d_year + 49) / 100, 0) AS century')
->selectRaw('COUNT(*) AS total')
->join('dates', static function (JoinClause $join): void {
$join->on('d_file', '=', 'f_file')
->on('d_gid', '=', 'f_id');
})
->where('f_file', '=', $this->tree->id())
->where('f_numchil', '=', 0)
->where('d_fact', '=', 'MARR')
->whereIn('d_type', ['@#DGREGORIAN@', '@#DJULIAN@'])
->groupBy(['century'])
->orderBy('century');
if ($year1 >= 0 && $year2 >= 0) {
$query->whereBetween('d_year', [$year1, $year2]);
}
return $query->get()->all();
}
/**
* Create a chart of children with no families.
*
* @param int $no_child_fam The number of families with no children
* @param int $year1
* @param int $year2
*
* @return string
*/
public function chartNoChildrenFamilies(
int $no_child_fam,
int $year1 = -1,
int $year2 = -1
): string {
$data = [
[
I18N::translate('Century'),
I18N::translate('Total')
]
];
$total = 0;
foreach ($this->queryRecords($year1, $year2) as $record) {
$total += (int) $record->total;
$data[] = [
$this->century_service->centuryName((int) $record->century),
(int) $record->total
];
}
if ($total > 0) {
$data[] = [
I18N::translateContext('unknown century', 'Unknown'),
$no_child_fam - $total,
];
}
$chart_title = I18N::translate('Number of families without children');
$chart_options = [
'title' => $chart_title,
'subtitle' => '',
'legend' => [
'position' => 'none',
],
'vAxis' => [
'title' => I18N::translate('Total families'),
],
'hAxis' => [
'showTextEvery' => 1,
'slantedText' => false,
'title' => I18N::translate('Century'),
],
'colors' => [
'#84beff'
],
];
return view('statistics/other/charts/column', [
'data' => $data,
'chart_options' => $chart_options,
'chart_title' => $chart_title,
'language' => I18N::languageTag(),
]);
}
}