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\Individual; 22 23/** 24 * The individual's date of birth. 25 */ 26class CensusColumnBirthDaySlashMonth 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 $birth_date = $individual->getBirthDate(); 39 40 if ($birth_date->minimumJulianDay() === $birth_date->maximumJulianDay()) { 41 return $birth_date->minimumDate()->format('%j/%n'); 42 } 43 44 return ''; 45 } 46} 47