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<?php
declare(strict_types=1);
namespace Doctrine\DBAL\Driver\PgSQL;
use Doctrine\DBAL\Driver\FetchUtils;
use Doctrine\DBAL\Driver\PgSQL\Exception\UnexpectedValue;
use Doctrine\DBAL\Driver\Result as ResultInterface;
use PgSql\Result as PgSqlResult;
use function array_keys;
use function array_map;
use function assert;
use function hex2bin;
use function pg_affected_rows;
use function pg_fetch_all;
use function pg_fetch_all_columns;
use function pg_fetch_assoc;
use function pg_fetch_row;
use function pg_field_name;
use function pg_field_type;
use function pg_free_result;
use function pg_num_fields;
use function substr;
use const PGSQL_ASSOC;
use const PGSQL_NUM;
use const PHP_INT_SIZE;
final class Result implements ResultInterface
{
private ?PgSqlResult $result;
public function __construct(PgSqlResult $result)
{
$this->result = $result;
}
public function __destruct()
{
if (! isset($this->result)) {
return;
}
$this->free();
}
/** {@inheritDoc} */
public function fetchNumeric(): array|false
{
if ($this->result === null) {
return false;
}
$row = pg_fetch_row($this->result);
if ($row === false) {
return false;
}
return $this->mapNumericRow($row, $this->fetchNumericColumnTypes());
}
/** {@inheritDoc} */
public function fetchAssociative(): array|false
{
if ($this->result === null) {
return false;
}
$row = pg_fetch_assoc($this->result);
if ($row === false) {
return false;
}
return $this->mapAssociativeRow($row, $this->fetchAssociativeColumnTypes());
}
/** {@inheritDoc} */
public function fetchOne(): mixed
{
return FetchUtils::fetchOne($this);
}
/** {@inheritDoc} */
public function fetchAllNumeric(): array
{
if ($this->result === null) {
return [];
}
$types = $this->fetchNumericColumnTypes();
return array_map(
fn (array $row) => $this->mapNumericRow($row, $types),
pg_fetch_all($this->result, PGSQL_NUM),
);
}
/** {@inheritDoc} */
public function fetchAllAssociative(): array
{
if ($this->result === null) {
return [];
}
$types = $this->fetchAssociativeColumnTypes();
return array_map(
fn (array $row) => $this->mapAssociativeRow($row, $types),
pg_fetch_all($this->result, PGSQL_ASSOC),
);
}
/** {@inheritDoc} */
public function fetchFirstColumn(): array
{
if ($this->result === null) {
return [];
}
$postgresType = pg_field_type($this->result, 0);
return array_map(
fn ($value) => $this->mapType($postgresType, $value),
pg_fetch_all_columns($this->result),
);
}
public function rowCount(): int
{
if ($this->result === null) {
return 0;
}
return pg_affected_rows($this->result);
}
public function columnCount(): int
{
if ($this->result === null) {
return 0;
}
return pg_num_fields($this->result);
}
public function free(): void
{
if ($this->result === null) {
return;
}
pg_free_result($this->result);
$this->result = null;
}
/** @return array<int, string> */
private function fetchNumericColumnTypes(): array
{
assert($this->result !== null);
$types = [];
$numFields = pg_num_fields($this->result);
for ($i = 0; $i < $numFields; ++$i) {
$types[$i] = pg_field_type($this->result, $i);
}
return $types;
}
/** @return array<string, string> */
private function fetchAssociativeColumnTypes(): array
{
assert($this->result !== null);
$types = [];
$numFields = pg_num_fields($this->result);
for ($i = 0; $i < $numFields; ++$i) {
$types[pg_field_name($this->result, $i)] = pg_field_type($this->result, $i);
}
return $types;
}
/**
* @param list<string|null> $row
* @param array<int, string> $types
*
* @return list<mixed>
*/
private function mapNumericRow(array $row, array $types): array
{
assert($this->result !== null);
return array_map(
fn ($value, $field) => $this->mapType($types[$field], $value),
$row,
array_keys($row),
);
}
/**
* @param array<string, string|null> $row
* @param array<string, string> $types
*
* @return array<string, mixed>
*/
private function mapAssociativeRow(array $row, array $types): array
{
assert($this->result !== null);
$mappedRow = [];
foreach ($row as $field => $value) {
$mappedRow[$field] = $this->mapType($types[$field], $value);
}
return $mappedRow;
}
private function mapType(string $postgresType, ?string $value): string|int|float|bool|null
{
if ($value === null) {
return null;
}
return match ($postgresType) {
'bool' => match ($value) {
't' => true,
'f' => false,
default => throw UnexpectedValue::new($value, $postgresType),
},
'bytea' => hex2bin(substr($value, 2)),
'float4', 'float8' => (float) $value,
'int2', 'int4' => (int) $value,
'int8' => PHP_INT_SIZE >= 8 ? (int) $value : $value,
default => $value,
};
}
}
|
