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<?php
declare(strict_types=1);
namespace Doctrine\DBAL\Driver\PDO;
use Doctrine\DBAL\Driver\Connection as ConnectionInterface;
use Doctrine\DBAL\Driver\Exception\IdentityColumnsNotSupported;
use Doctrine\DBAL\Driver\Exception\NoIdentityValue;
use PDO;
use PDOException;
use PDOStatement;
use function assert;
final class Connection implements ConnectionInterface
{
/** @internal The connection can be only instantiated by its driver. */
public function __construct(private readonly PDO $connection)
{
$connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_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);
}
}
public function getServerVersion(): string
{
return $this->connection->getAttribute(PDO::ATTR_SERVER_VERSION);
}
public function prepare(string $sql): Statement
{
try {
$stmt = $this->connection->prepare($sql);
assert($stmt instanceof PDOStatement);
return new Statement($stmt);
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
public function query(string $sql): Result
{
try {
$stmt = $this->connection->query($sql);
assert($stmt instanceof PDOStatement);
return new Result($stmt);
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
public function quote(string $value): string
{
return $this->connection->quote($value);
}
public function lastInsertId(): int|string
{
try {
$value = $this->connection->lastInsertId();
} catch (PDOException $exception) {
assert($exception->errorInfo !== null);
[$sqlState] = $exception->errorInfo;
// if the PDO driver does not support this capability, PDO::lastInsertId() triggers an IM001 SQLSTATE
// see https://www.php.net/manual/en/pdo.lastinsertid.php
if ($sqlState === 'IM001') {
throw IdentityColumnsNotSupported::new();
}
// PDO PGSQL throws a 'lastval is not yet defined in this session' error when no identity value is
// available, with SQLSTATE 55000 'Object Not In Prerequisite State'
if ($sqlState === '55000' && $this->connection->getAttribute(PDO::ATTR_DRIVER_NAME) === 'pgsql') {
throw NoIdentityValue::new($exception);
}
throw Exception::new($exception);
}
// pdo_mysql & pdo_sqlite return '0', pdo_sqlsrv returns '' or false depending on the PHP version
if ($value === '0' || $value === '' || $value === false) {
throw NoIdentityValue::new();
}
return $value;
}
public function beginTransaction(): void
{
try {
$this->connection->beginTransaction();
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
public function commit(): void
{
try {
$this->connection->commit();
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
public function rollBack(): void
{
try {
$this->connection->rollBack();
} catch (PDOException $exception) {
throw Exception::new($exception);
}
}
public function getNativeConnection(): PDO
{
return $this->connection;
}
}
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