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caff1023ea
To continue this formatting madness, here's a tiny patch that adds unified formatting for control structures like if and loops as well as classes, their methods and anonymous functions. This basically forces the constructs to start on the same line. This is not exactly what PSR2 wants, but I think we can have a few exceptions with "our" style. The starting of braces on the same line is pracrically standard for our code. This also removes and empty lines from method/function bodies at the beginning and end. Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>
99 lines
3.7 KiB
PHP
99 lines
3.7 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC\DB;
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use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
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class AdapterSqlite extends Adapter {
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/**
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* @param string $tableName
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*/
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public function lockTable($tableName) {
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$this->conn->executeUpdate('BEGIN EXCLUSIVE TRANSACTION');
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}
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public function unlockTable() {
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$this->conn->executeUpdate('COMMIT TRANSACTION');
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}
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public function fixupStatement($statement) {
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$statement = preg_replace('/`(\w+)` ILIKE \?/', 'LOWER($1) LIKE LOWER(?)', $statement);
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$statement = str_replace('`', '"', $statement);
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$statement = str_ireplace('NOW()', 'datetime(\'now\')', $statement);
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$statement = str_ireplace('GREATEST(', 'MAX(', $statement);
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$statement = str_ireplace('UNIX_TIMESTAMP()', 'strftime(\'%s\',\'now\')', $statement);
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return $statement;
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}
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/**
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* Insert a row if the matching row does not exists. To accomplish proper race condition avoidance
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* it is needed that there is also a unique constraint on the values. Then this method will
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* catch the exception and return 0.
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*
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* @param string $table The table name (will replace *PREFIX* with the actual prefix)
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* @param array $input data that should be inserted into the table (column name => value)
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* @param array|null $compare List of values that should be checked for "if not exists"
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* If this is null or an empty array, all keys of $input will be compared
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* Please note: text fields (clob) must not be used in the compare array
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* @return int number of inserted rows
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* @throws \Doctrine\DBAL\DBALException
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* @deprecated 15.0.0 - use unique index and "try { $db->insert() } catch (UniqueConstraintViolationException $e) {}" instead, because it is more reliable and does not have the risk for deadlocks - see https://github.com/nextcloud/server/pull/12371
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*/
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public function insertIfNotExist($table, $input, array $compare = null) {
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if (empty($compare)) {
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$compare = array_keys($input);
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}
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$fieldList = '`' . implode('`,`', array_keys($input)) . '`';
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$query = "INSERT INTO `$table` ($fieldList) SELECT "
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. str_repeat('?,', count($input)-1).'? '
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. " WHERE NOT EXISTS (SELECT 1 FROM `$table` WHERE ";
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$inserts = array_values($input);
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foreach ($compare as $key) {
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$query .= '`' . $key . '`';
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if (is_null($input[$key])) {
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$query .= ' IS NULL AND ';
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} else {
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$inserts[] = $input[$key];
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$query .= ' = ? AND ';
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}
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}
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$query = substr($query, 0, -5);
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$query .= ')';
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try {
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return $this->conn->executeUpdate($query, $inserts);
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} catch (UniqueConstraintViolationException $e) {
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// if this is thrown then a concurrent insert happened between the insert and the sub-select in the insert, that should have avoided it
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// it's fine to ignore this then
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//
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// more discussions about this can be found at https://github.com/nextcloud/server/pull/12315
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return 0;
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}
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}
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}
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