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| 1 | <?php |
| 2 | /** |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2 of the License, or |
| 6 | * (at your option) any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 16 | * http://www.gnu.org/copyleft/gpl.html |
| 17 | * |
| 18 | * @file |
| 19 | */ |
| 20 | |
| 21 | declare( strict_types = 1 ); |
| 22 | |
| 23 | namespace MediaWiki\Babel; |
| 24 | |
| 25 | use MediaWiki\MediaWikiServices; |
| 26 | use Wikimedia\Rdbms\IDatabase; |
| 27 | use Wikimedia\Rdbms\LBFactory; |
| 28 | |
| 29 | class Database { |
| 30 | |
| 31 | /** |
| 32 | * @var LBFactory |
| 33 | */ |
| 34 | private $loadBalancerFactory; |
| 35 | |
| 36 | public function __construct() { |
| 37 | $this->loadBalancerFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory(); |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * @param int $index |
| 42 | * @param string|bool $wiki Database name if querying a different wiki |
| 43 | * @return IDatabase |
| 44 | */ |
| 45 | protected function getDB( int $index, $wiki = false ): IDatabase { |
| 46 | return $this->loadBalancerFactory->getMainLB( $wiki ) |
| 47 | ->getConnection( $index, [], $wiki ); |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * @param int $id user id |
| 52 | * @return string[] [ lang => level ] |
| 53 | */ |
| 54 | public function getForUser( int $id ): array { |
| 55 | $rows = $this->getDB( DB_REPLICA )->select( |
| 56 | 'babel', |
| 57 | [ 'babel_lang', 'babel_level' ], |
| 58 | [ 'babel_user' => $id ], |
| 59 | __METHOD__ |
| 60 | ); |
| 61 | |
| 62 | $return = []; |
| 63 | foreach ( $rows as $row ) { |
| 64 | $return[$row->babel_lang] = $row->babel_level; |
| 65 | } |
| 66 | |
| 67 | return $return; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * @param string $wiki Database name |
| 72 | * @param string $username |
| 73 | * @return string[] [ lang => level ] |
| 74 | */ |
| 75 | public function getForRemoteUser( string $wiki, string $username ): array { |
| 76 | $rows = $this->getDB( DB_REPLICA, $wiki )->select( |
| 77 | [ 'babel', 'user' ], |
| 78 | [ 'babel_lang', 'babel_level' ], |
| 79 | [ |
| 80 | 'user_name' => $username |
| 81 | ], |
| 82 | __METHOD__, |
| 83 | [], |
| 84 | [ |
| 85 | 'user' => [ 'INNER JOIN', 'babel_user=user_id' ] |
| 86 | ] |
| 87 | ); |
| 88 | |
| 89 | $return = []; |
| 90 | foreach ( $rows as $row ) { |
| 91 | $return[$row->babel_lang] = $row->babel_level; |
| 92 | } |
| 93 | |
| 94 | return $return; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * @param int $id |
| 99 | * @param string[] $data [ lang => level ] |
| 100 | * @return bool true if changes to the db were made |
| 101 | */ |
| 102 | public function setForUser( int $id, array $data ): bool { |
| 103 | $dbw = $this->getDB( DB_PRIMARY ); |
| 104 | |
| 105 | $newRows = []; |
| 106 | foreach ( $data as $lang => $level ) { |
| 107 | $newRows[$lang] = [ |
| 108 | 'babel_lang' => $lang, |
| 109 | 'babel_level' => $level, |
| 110 | 'babel_user' => $id |
| 111 | ]; |
| 112 | } |
| 113 | |
| 114 | $rowsDelete = []; |
| 115 | $res = $dbw->select( |
| 116 | 'babel', |
| 117 | [ 'babel_lang', 'babel_level' ], |
| 118 | [ 'babel_user' => $id ], |
| 119 | __METHOD__ |
| 120 | ); |
| 121 | foreach ( $res as $row ) { |
| 122 | if ( isset( $newRows[$row->babel_lang] ) ) { |
| 123 | if ( $newRows[$row->babel_lang]['babel_level'] === $row->babel_level ) { |
| 124 | // Matching row already exists |
| 125 | unset( $newRows[$row->babel_lang] ); |
| 126 | } |
| 127 | } else { |
| 128 | $rowsDelete[] = $row->babel_lang; |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | if ( $rowsDelete ) { |
| 133 | $dbw->delete( |
| 134 | 'babel', |
| 135 | [ 'babel_user' => $id, 'babel_lang' => $rowsDelete ], |
| 136 | __METHOD__ |
| 137 | ); |
| 138 | } |
| 139 | if ( $newRows ) { |
| 140 | $dbw->replace( |
| 141 | 'babel', |
| 142 | [ [ 'babel_user', 'babel_lang' ] ], |
| 143 | array_values( $newRows ), |
| 144 | __METHOD__ |
| 145 | ); |
| 146 | } |
| 147 | |
| 148 | return $rowsDelete || $newRows; |
| 149 | } |
| 150 | } |