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<?php
namespace Doctrine\DBAL\Driver\PgSQL;
use Doctrine\DBAL\Driver\PgSQL\Exception\UnknownParameter;
use Doctrine\DBAL\Driver\Statement as StatementInterface;
use Doctrine\DBAL\ParameterType;
use Doctrine\Deprecations\Deprecation;
use PgSql\Connection as PgSqlConnection;
use TypeError;
use function assert;
use function func_num_args;
use function get_class;
use function gettype;
use function is_int;
use function is_object;
use function is_resource;
use function ksort;
use function pg_escape_bytea;
use function pg_escape_identifier;
use function pg_get_result;
use function pg_last_error;
use function pg_query;
use function pg_result_error;
use function pg_send_execute;
use function sprintf;
use function stream_get_contents;
final class Statement implements StatementInterface
{
/** @var PgSqlConnection|resource */
private $connection;
private string $name;
/** @var array<array-key, int> */
private array $parameterMap;
/** @var array<int, mixed> */
private array $parameters = [];
/** @psalm-var array<int, int> */
private array $parameterTypes = [];
/**
* @param PgSqlConnection|resource $connection
* @param array<array-key, int> $parameterMap
*/
public function __construct($connection, string $name, array $parameterMap)
{
if (! is_resource($connection) && ! $connection instanceof PgSqlConnection) {
throw new TypeError(sprintf(
'Expected connection to be a resource or an instance of %s, got %s.',
PgSqlConnection::class,
is_object($connection) ? get_class($connection) : gettype($connection),
));
}
$this->connection = $connection;
$this->name = $name;
$this->parameterMap = $parameterMap;
}
public function __destruct()
{
if (! isset($this->connection)) {
return;
}
@pg_query(
$this->connection,
'DEALLOCATE ' . pg_escape_identifier($this->connection, $this->name),
);
}
/** {@inheritdoc} */
public function bindValue($param, $value, $type = ParameterType::STRING): bool
{
if (! isset($this->parameterMap[$param])) {
throw UnknownParameter::new((string) $param);
}
$this->parameters[$this->parameterMap[$param]] = $value;
$this->parameterTypes[$this->parameterMap[$param]] = $type;
return true;
}
/** {@inheritdoc} */
public function bindParam($param, &$variable, $type = ParameterType::STRING, $length = null): bool
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5563',
'%s is deprecated. Use bindValue() instead.',
__METHOD__,
);
if (func_num_args() < 3) {
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5558',
'Not passing $type to Statement::bindParam() is deprecated.'
. ' Pass the type corresponding to the parameter being bound.',
);
}
if (func_num_args() > 4) {
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/4533',
'The $driverOptions argument of Statement::bindParam() is deprecated.',
);
}
if (! isset($this->parameterMap[$param])) {
throw UnknownParameter::new((string) $param);
}
$this->parameters[$this->parameterMap[$param]] = &$variable;
$this->parameterTypes[$this->parameterMap[$param]] = $type;
return true;
}
/** {@inheritdoc} */
public function execute($params = null): Result
{
if ($params !== null) {
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5556',
'Passing $params to Statement::execute() is deprecated. Bind parameters using'
. ' Statement::bindParam() or Statement::bindValue() instead.',
);
foreach ($params as $param => $value) {
if (is_int($param)) {
$this->bindValue($param + 1, $value, ParameterType::STRING);
} else {
$this->bindValue($param, $value, ParameterType::STRING);
}
}
}
ksort($this->parameters);
$escapedParameters = [];
foreach ($this->parameters as $parameter => $value) {
switch ($this->parameterTypes[$parameter]) {
case ParameterType::BINARY:
case ParameterType::LARGE_OBJECT:
$escapedParameters[] = $value === null ? null : pg_escape_bytea(
$this->connection,
is_resource($value) ? stream_get_contents($value) : $value,
);
break;
default:
$escapedParameters[] = $value;
}
}
if (@pg_send_execute($this->connection, $this->name, $escapedParameters) !== true) {
throw new Exception(pg_last_error($this->connection));
}
$result = @pg_get_result($this->connection);
assert($result !== false);
if ((bool) pg_result_error($result)) {
throw Exception::fromResult($result);
}
return new Result($result);
}
}
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