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<?php
/**
* @author Arthur Schiwon <blizzz@owncloud.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Jonny007-MKD <1-23-4-5@web.de>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @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;
/**
* This handles the way we use to write queries, into something that can be
* handled by the database abstraction layer.
*/
class Adapter {
/**
* @var \OC\DB\Connection $conn
*/
protected $conn;
public function __construct($conn) {
$this->conn = $conn;
}
/**
* @param string $table name
* @return int id of last insert statement
*/
public function lastInsertId($table) {
return $this->conn->realLastInsertId($table);
}
/**
* @param string $statement that needs to be changed so the db can handle it
* @return string changed statement
*/
public function fixupStatement($statement) {
return $statement;
}
/**
* insert the @input values when they do not exist yet
* @param string $table name
* @param array $input key->value pair, key has to be sanitized properly
* @throws \OC\HintException
* @return int count of inserted rows
*/
public function insertIfNotExist($table, $input) {
$query = 'INSERT INTO `' .$table . '` (`'
. implode('`,`', array_keys($input)) . '`) SELECT '
. str_repeat('?,', count($input)-1).'? ' // Is there a prettier alternative?
. 'FROM `' . $table . '` WHERE ';
$inserts = array_values($input);
foreach($input as $key => $value) {
$query .= '`' . $key . '`';
if (is_null($value)) {
$query .= ' IS NULL AND ';
} else {
$inserts[] = $value;
$query .= ' = ? AND ';
}
}
$query = substr($query, 0, strlen($query) - 5);
$query .= ' HAVING COUNT(*) = 0';
try {
return $this->conn->executeUpdate($query, $inserts);
} catch(\Doctrine\DBAL\DBALException $e) {
$entry = 'DB Error: "'.$e->getMessage() . '"<br />';
$entry .= 'Offending command was: ' . $query.'<br />';
\OC_Log::write('core', $entry, \OC_Log::FATAL);
$l = \OC::$server->getL10N('lib');
throw new \OC\HintException(
$l->t('Database Error'),
$l->t('Please contact your system administrator.'),
0,
$e
);
}
}
}
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