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<?php
namespace Doctrine\DBAL\Driver\PDO;
use Doctrine\DBAL\Driver\Exception as ExceptionInterface;
use Doctrine\DBAL\Driver\Result as ResultInterface;
use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
use Doctrine\DBAL\Driver\Statement as StatementInterface;
use Doctrine\DBAL\ParameterType;
use PDO;
use PDOException;
use PDOStatement;
use function assert;
final class Connection implements ServerInfoAwareConnection
{
/** @var PDO */
private $connection;
/**
* @internal The connection can be only instantiated by its driver.
*
* @param string $dsn
* @param string|null $user
* @param string|null $password
* @param mixed[]|null $options
*
* @throws ExceptionInterface
*/
public function __construct($dsn, $user = null, $password = null, ?array $options = null)
{
try {
$this->connection = new PDO($dsn, (string) $user, (string) $password, (array) $options);
$this->connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
public function exec(string $sql): int
{
try {
$result = $this->connection->exec($sql);
assert($result !== false);
return $result;
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
/**
* {@inheritdoc}
*/
public function getServerVersion()
{
return $this->connection->getAttribute(PDO::ATTR_SERVER_VERSION);
}
/**
* {@inheritDoc}
*
* @return Statement
*/
public function prepare(string $sql): StatementInterface
{
try {
$stmt = $this->connection->prepare($sql);
assert($stmt instanceof PDOStatement);
return $this->createStatement($stmt);
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
public function query(string $sql): ResultInterface
{
try {
$stmt = $this->connection->query($sql);
assert($stmt instanceof PDOStatement);
return new Result($stmt);
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
/**
* {@inheritdoc}
*/
public function quote($value, $type = ParameterType::STRING)
{
return $this->connection->quote($value, $type);
}
/**
* {@inheritdoc}
*/
public function lastInsertId($name = null)
{
try {
if ($name === null) {
return $this->connection->lastInsertId();
}
return $this->connection->lastInsertId($name);
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
/**
* Creates a wrapped statement
*/
protected function createStatement(PDOStatement $stmt): Statement
{
return new Statement($stmt);
}
/**
* {@inheritDoc}
*/
public function beginTransaction()
{
return $this->connection->beginTransaction();
}
/**
* {@inheritDoc}
*/
public function commit()
{
return $this->connection->commit();
}
/**
* {@inheritDoc}
*/
public function rollBack()
{
return $this->connection->rollBack();
}
public function getWrappedConnection(): PDO
{
return $this->connection;
}
}