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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Ole Ostergaard <ole.c.ostergaard@gmail.com>
* @author Ole Ostergaard <ole.ostergaard@knime.com>
*
* @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/>
*
*/
namespace OC\DB;
class AdapterPgSql extends Adapter {
protected $compatModePre9_5 = null;
public function lastInsertId($table) {
$result = $this->conn->executeQuery('SELECT lastval()');
$val = $result->fetchOne();
$result->free();
return (int)$val;
}
public const UNIX_TIMESTAMP_REPLACEMENT = 'cast(extract(epoch from current_timestamp) as integer)';
public function fixupStatement($statement) {
$statement = str_replace('`', '"', $statement);
$statement = str_ireplace('UNIX_TIMESTAMP()', self::UNIX_TIMESTAMP_REPLACEMENT, $statement);
return $statement;
}
public function insertIgnoreConflict(string $table,array $values) : int {
if ($this->isPre9_5CompatMode() === true) {
return parent::insertIgnoreConflict($table, $values);
}
// "upsert" is only available since PgSQL 9.5, but the generic way
// would leave error logs in the DB.
$builder = $this->conn->getQueryBuilder();
$builder->insert($table);
foreach ($values as $key => $value) {
$builder->setValue($key, $builder->createNamedParameter($value));
}
$queryString = $builder->getSQL() . ' ON CONFLICT DO NOTHING';
return $this->conn->executeUpdate($queryString, $builder->getParameters(), $builder->getParameterTypes());
}
protected function isPre9_5CompatMode(): bool {
if ($this->compatModePre9_5 !== null) {
return $this->compatModePre9_5;
}
$result = $this->conn->executeQuery('SHOW SERVER_VERSION');
$version = $result->fetchOne();
$result->free();
$this->compatModePre9_5 = version_compare($version, '9.5', '<');
return $this->compatModePre9_5;
}
}
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