Copybara bot | be50d49 | 2023-11-30 00:16:42 +0100 | [diff] [blame] | 1 | <?php |
Adrià Vilanova Martínez | 5af8651 | 2023-12-02 20:44:16 +0100 | [diff] [blame] | 2 | /* |
| 3 | * hores |
| 4 | * Copyright (c) 2023 Adrià Vilanova Martínez |
| 5 | * |
| 6 | * This program is free software: you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU Affero General Public License as |
| 8 | * published by the Free Software Foundation, either version 3 of the |
| 9 | * License, or (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU Affero General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Affero General Public |
| 17 | * License along with this program. |
| 18 | * If not, see http://www.gnu.org/licenses/. |
| 19 | */ |
| 20 | |
Copybara bot | be50d49 | 2023-11-30 00:16:42 +0100 | [diff] [blame] | 21 | class db { |
| 22 | const EXPORT_DB_FORMAT_SQL = 0; |
| 23 | |
| 24 | public static function sanitize($string) { |
| 25 | global $con; |
| 26 | return mysqli_real_escape_string($con, $string); |
| 27 | } |
| 28 | |
| 29 | public static function needsSetUp() { |
| 30 | global $con; |
| 31 | |
| 32 | $checkquery = mysqli_query($con, "SELECT 1 FROM people LIMIT 1"); |
| 33 | |
| 34 | return ($checkquery === false); |
| 35 | } |
| 36 | |
| 37 | public static function numRows($table) { |
| 38 | global $con; |
| 39 | |
| 40 | $stable = preg_replace("/[^A-Za-z0-9 ]/", '', $table); |
| 41 | |
| 42 | $query = mysqli_query($con, "SELECT 1 FROM $stable"); |
| 43 | |
| 44 | if ($query === false) return -1; |
| 45 | |
| 46 | return mysqli_num_rows($query); |
| 47 | } |
| 48 | |
| 49 | public static function limitPagination($start, $limit) { |
| 50 | $slimit = (int)$limit; |
| 51 | $sstart = $slimit*(int)$start; |
| 52 | if ($slimit > 100 || $slimit < 0) return false; |
| 53 | if ($sstart < 0) return false; |
| 54 | |
| 55 | return ($slimit == 0 ? "" : " LIMIT $sstart,$slimit"); |
| 56 | } |
| 57 | } |