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 19/** 20 * Definitions for a census 21 */ 22interface CensusInterface extends CensusPlaceInterface 23{ 24 /** 25 * When did this census occur, in GEDCOM format. 26 * 27 * @return string 28 */ 29 public function censusDate(): string; 30 31 /** 32 * The columns of the census. 33 * 34 * @return CensusColumnInterface[] 35 */ 36 public function columns(): array; 37} 38