1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2020 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\Census; 21 22use Fisharebest\Webtrees\Date; 23use Fisharebest\Webtrees\Individual; 24 25/** 26 * The number of children born alive. 27 */ 28class CensusColumnChildrenBornAlive extends AbstractCensusColumn implements CensusColumnInterface 29{ 30 /** 31 * Generate the likely value of this census column, based on available information. 32 * 33 * @param Individual $individual 34 * @param Individual $head 35 * 36 * @return string 37 */ 38 public function generate(Individual $individual, Individual $head): string 39 { 40 $family = $this->spouseFamily($individual); 41 42 if ($family === null || $individual->sex() !== 'F') { 43 return ''; 44 } 45 46 return (string) $family->children() 47 ->filter(function (Individual $child): bool { 48 return 49 $child->getBirthDate()->isOK() && 50 Date::compare($child->getBirthDate(), $this->date()) < 0 && 51 $child->getBirthDate()->minimumJulianDay() !== $child->getDeathDate()->minimumJulianDay(); 52 }) 53 ->count(); 54 } 55} 56