1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2019 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 */ 17declare(strict_types=1); 18 19namespace Fisharebest\Webtrees\Census; 20 21use Fisharebest\Webtrees\Date; 22use Fisharebest\Webtrees\Individual; 23 24/** 25 * The number of children who are still living. 26 */ 27class CensusColumnChildrenLiving extends AbstractCensusColumn implements CensusColumnInterface 28{ 29 /** 30 * Generate the likely value of this census column, based on available information. 31 * 32 * @param Individual $individual 33 * @param Individual $head 34 * 35 * @return string 36 */ 37 public function generate(Individual $individual, Individual $head): string 38 { 39 if ($individual->sex() !== 'F') { 40 return ''; 41 } 42 43 $count = 0; 44 foreach ($individual->spouseFamilies() as $family) { 45 foreach ($family->children() as $child) { 46 $birth = $child->getBirthDate(); 47 $death = $child->getDeathDate(); 48 49 $born_before = $birth->isOK() && Date::compare($birth, $this->date()) < 0; 50 $died_after = $death->isOK() && Date::compare($death, $this->date()) > 0 || !$death->isOK(); 51 52 if ($born_before && $died_after) { 53 $count++; 54 } 55 } 56 } 57 58 return (string) $count; 59 } 60} 61