diff options
Diffstat (limited to 'lib/private/DB/AdapterMySQL.php')
| -rw-r--r-- | lib/private/DB/AdapterMySQL.php | 54 |
1 files changed, 33 insertions, 21 deletions
diff --git a/lib/private/DB/AdapterMySQL.php b/lib/private/DB/AdapterMySQL.php index b4be5c2e96a..63c75607379 100644 --- a/lib/private/DB/AdapterMySQL.php +++ b/lib/private/DB/AdapterMySQL.php @@ -1,29 +1,13 @@ <?php + /** - * @copyright Copyright (c) 2016, ownCloud, Inc. - * - * @author Joas Schilling <coding@schilljs.com> - * @author Robin Appelman <robin@icewind.nl> - * - * @license AGPL-3.0 - * - * This code is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License, version 3, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License, version 3, - * along with this program. If not, see <http://www.gnu.org/licenses/> - * + * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors + * SPDX-FileCopyrightText: 2016 ownCloud, Inc. + * SPDX-License-Identifier: AGPL-3.0-only */ namespace OC\DB; class AdapterMySQL extends Adapter { - /** @var string */ protected $collation; @@ -31,7 +15,7 @@ class AdapterMySQL extends Adapter { * @param string $tableName */ public function lockTable($tableName) { - $this->conn->executeUpdate('LOCK TABLES `' .$tableName . '` WRITE'); + $this->conn->executeUpdate('LOCK TABLES `' . $tableName . '` WRITE'); } public function unlockTable() { @@ -51,4 +35,32 @@ class AdapterMySQL extends Adapter { return $this->collation; } + + public function insertIgnoreConflict(string $table, array $values): int { + $builder = $this->conn->getQueryBuilder(); + $builder->insert($table); + $updates = []; + foreach ($values as $key => $value) { + $builder->setValue($key, $builder->createNamedParameter($value)); + } + + /* + * We can't use ON DUPLICATE KEY UPDATE here because Nextcloud use the CLIENT_FOUND_ROWS flag + * With this flag the MySQL returns the number of selected rows + * instead of the number of affected/modified rows + * It's impossible to change this behaviour at runtime or for a single query + * Then, the result is 1 if a row is inserted and also 1 if a row is updated with same or different values + * + * With INSERT IGNORE, the result is 1 when a row is inserted, 0 otherwise + * + * Risk: it can also ignore other errors like type mismatch or truncated data… + */ + $res = $this->conn->executeStatement( + preg_replace('/^INSERT/i', 'INSERT IGNORE', $builder->getSQL()), + $builder->getParameters(), + $builder->getParameterTypes() + ); + + return $res; + } } |