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\Census; 19 20use Fisharebest\Webtrees\Date; 21use Fisharebest\Webtrees\Individual; 22 23/** 24 * The number of children who are still living. 25 */ 26class CensusColumnChildrenLiving extends AbstractCensusColumn implements CensusColumnInterface 27{ 28 /** 29 * Generate the likely value of this census column, based on available information. 30 * 31 * @param Individual $individual 32 * @param Individual $head 33 * 34 * @return string 35 */ 36 public function generate(Individual $individual, Individual $head): string 37 { 38 if ($individual->sex() !== 'F') { 39 return ''; 40 } 41 42 $count = 0; 43 foreach ($individual->spouseFamilies() as $family) { 44 foreach ($family->children() as $child) { 45 if ( 46 $child->getBirthDate()->isOK() && 47 Date::compare($child->getBirthDate(), $this->date()) < 0 && 48 $child->getBirthDate() != $child->getDeathDate() && 49 (!$child->getDeathDate()->isOK() || Date::compare($child->getDeathDate(), $this->date()) > 0) 50 ) { 51 $count++; 52 } 53 } 54 } 55 56 return (string) $count; 57 } 58} 59