xref: /webtrees/app/Census/CensusColumnMonthIfBornWithinYear.php (revision fd6c8c786edaa7cf7534ebe606cd8d58eec364cb)
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2018 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 */
16
17namespace Fisharebest\Webtrees\Census;
18
19use Fisharebest\Webtrees\Individual;
20
21/**
22 * The month of birth, if within the last year.
23 */
24class CensusColumnMonthIfBornWithinYear extends AbstractCensusColumn implements CensusColumnInterface
25{
26    /**
27     * Generate the likely value of this census column, based on available information.
28     *
29     * @param Individual $individual
30     * @param Individual $head
31     *
32     * @return string
33     */
34    public function generate(Individual $individual, Individual $head): string
35    {
36        $birth_jd  = $individual->getBirthDate()->julianDay();
37        $census_jd = $this->date()->julianDay();
38        if ($birth_jd <= $census_jd && $birth_jd >= $census_jd - 365) {
39            // Use the GEDCOM month, as we need this in English - for the US census
40            return ucfirst(strtolower($individual->getBirthDate()->minimumDate()->format('%O')));
41        }
42
43        return '';
44    }
45}
46