xref: /webtrees/app/Census/CensusColumnChildrenLiving.php (revision 15d603e7c7c15d20f055d3d9c38d6b133453c5be)
1<?php
2/**
3 * webtrees: online genealogy
4 * Copyright (C) 2017 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\Date;
20use Fisharebest\Webtrees\Individual;
21
22/**
23 * The number of children who are still living.
24 */
25class CensusColumnChildrenLiving extends AbstractCensusColumn implements CensusColumnInterface {
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 $head = null) {
35		if ($individual->getSex() !== 'F') {
36			return '';
37		}
38
39		$count = 0;
40		foreach ($individual->getSpouseFamilies() as $family) {
41			foreach ($family->getChildren() as $child) {
42				if (
43					$child->getBirthDate()->isOK() &&
44					Date::compare($child->getBirthDate(), $this->date()) < 0 &&
45					$child->getBirthDate() != $child->getDeathDate() &&
46					(!$child->getDeathDate()->isOK() || Date::compare($child->getDeathDate(), $this->date()) > 0)
47				) {
48					$count++;
49				}
50			}
51		}
52
53		return (string)$count;
54	}
55}
56