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 */ 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 who are still living. 27 */ 28class CensusColumnChildrenLiving 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 $head): string 39 { 40 if ($individual->sex() !== 'F') { 41 return ''; 42 } 43 44 $count = 0; 45 foreach ($individual->spouseFamilies() as $family) { 46 foreach ($family->children() as $child) { 47 $birth = $child->getBirthDate(); 48 $death = $child->getDeathDate(); 49 50 $born_before = $birth->isOK() && Date::compare($birth, $this->date()) < 0; 51 $died_after = $death->isOK() && Date::compare($death, $this->date()) > 0 || !$death->isOK(); 52 53 if ($born_before && $died_after) { 54 $count++; 55 } 56 } 57 } 58 59 return (string) $count; 60 } 61} 62