app/Census/CensusColumnChildrenDied.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\Census;
use Fisharebest\Webtrees\Date;
use Fisharebest\Webtrees\Individual;
/**
* The number of children who have died.
*/
class CensusColumnChildrenDied extends AbstractCensusColumn implements CensusColumnInterface
{
/**
* Generate the likely value of this census column, based on available information.
*
* @param Individual $individual
* @param Individual $head
*
* @return string
*/
public function generate(Individual $individual, Individual $head): string
{
$family = $this->spouseFamily($individual);
if ($family === null || $individual->sex() !== 'F') {
return '';
}
return (string) $family->children()
->filter(fn (Individual $child): bool => $child->getBirthDate()->isOK() &&
Date::compare($child->getBirthDate(), $this->date()) < 0 &&
$child->getBirthDate()->minimumJulianDay() !== $child->getDeathDate()->minimumJulianDay() &&
$child->getDeathDate()->isOK() &&
Date::compare($child->getDeathDate(), $this->date()) < 0)
->count();
}
}