xref: /webtrees/app/Census/CensusColumnMonthIfBornWithinYear.php (revision 126654d77c042f1254afcd89fbf831cc610b808e)
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\Individual;
21
22/**
23 * The month of birth, if within the last year.
24 */
25class CensusColumnMonthIfBornWithinYear extends AbstractCensusColumn implements CensusColumnInterface
26{
27    /**
28     * Generate the likely value of this census column, based on available information.
29     *
30     * @param Individual $individual
31     * @param Individual $head
32     *
33     * @return string
34     */
35    public function generate(Individual $individual, Individual $head): string
36    {
37        $birth_jd  = $individual->getBirthDate()->julianDay();
38        $census_jd = $this->date()->julianDay();
39        if ($birth_jd <= $census_jd && $birth_jd >= $census_jd - 365) {
40            // Use the GEDCOM month, as we need this in English - for the US census
41            return ucfirst(strtolower($individual->getBirthDate()->minimumDate()->format('%O')));
42        }
43
44        return '';
45    }
46}
47