xref: /webtrees/app/Census/CensusColumnMonthIfBornWithinYear.php (revision 29a51599e39417638370fe4c2c4d77201726c9ff)
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\Individual;
23
24/**
25 * The month of birth, if within the last year.
26 */
27class CensusColumnMonthIfBornWithinYear 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        $birth_jd  = $individual->getBirthDate()->julianDay();
40        $census_jd = $this->date()->julianDay();
41        if ($birth_jd <= $census_jd && $birth_jd >= $census_jd - 365) {
42            // Use the GEDCOM month, as we need this in English - for the US census
43            return ucfirst(strtolower($individual->getBirthDate()->minimumDate()->format('%O')));
44        }
45
46        return '';
47    }
48}
49