/
DateTimeNormalizer.php
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/
DateTimeNormalizer.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Serializer\Normalizer;
use Symfony\Component\PropertyInfo\Type;
use Symfony\Component\Serializer\Exception\InvalidArgumentException;
use Symfony\Component\Serializer\Exception\NotNormalizableValueException;
/**
* Normalizes an object implementing the {@see \DateTimeInterface} to a date string.
* Denormalizes a date string to an instance of {@see \DateTime} or {@see \DateTimeImmutable}.
*
* @author Kévin Dunglas <dunglas@gmail.com>
*
* @final since Symfony 6.3
*/
class DateTimeNormalizer implements NormalizerInterface, DenormalizerInterface, CacheableSupportsMethodInterface
{
public const FORMAT_KEY = 'datetime_format';
public const TIMEZONE_KEY = 'datetime_timezone';
private array $defaultContext = [
self::FORMAT_KEY => \DateTimeInterface::RFC3339,
self::TIMEZONE_KEY => null,
];
private const SUPPORTED_TYPES = [
\DateTimeInterface::class => true,
\DateTimeImmutable::class => true,
\DateTime::class => true,
];
public function __construct(array $defaultContext = [])
{
$this->setDefaultContext($defaultContext);
}
public function setDefaultContext(array $defaultContext): void
{
$this->defaultContext = array_merge($this->defaultContext, $defaultContext);
}
public function getSupportedTypes(?string $format): array
{
$isCacheable = __CLASS__ === static::class || $this->hasCacheableSupportsMethod();
return [
\DateTimeInterface::class => $isCacheable,
\DateTimeImmutable::class => $isCacheable,
\DateTime::class => $isCacheable,
];
}
/**
* @throws InvalidArgumentException
*/
public function normalize(mixed $object, ?string $format = null, array $context = []): string
{
if (!$object instanceof \DateTimeInterface) {
throw new InvalidArgumentException('The object must implement the "\DateTimeInterface".');
}
$dateTimeFormat = $context[self::FORMAT_KEY] ?? $this->defaultContext[self::FORMAT_KEY];
$timezone = $this->getTimezone($context);
if (null !== $timezone) {
$object = clone $object;
$object = $object->setTimezone($timezone);
}
return $object->format($dateTimeFormat);
}
/**
* @param array $context
*/
public function supportsNormalization(mixed $data, ?string $format = null /* , array $context = [] */): bool
{
return $data instanceof \DateTimeInterface;
}
/**
* @throws NotNormalizableValueException
*/
public function denormalize(mixed $data, string $type, ?string $format = null, array $context = []): \DateTimeInterface
{
if (\is_int($data) || \is_float($data)) {
switch ($context[self::FORMAT_KEY] ?? $this->defaultContext[self::FORMAT_KEY] ?? null) {
case 'U': $data = sprintf('%d', $data); break;
case 'U.u': $data = sprintf('%.6F', $data); break;
}
}
if (!\is_string($data) || '' === trim($data)) {
throw NotNormalizableValueException::createForUnexpectedDataType('The data is either not an string, an empty string, or null; you should pass a string that can be parsed with the passed format or a valid DateTime string.', $data, [Type::BUILTIN_TYPE_STRING], $context['deserialization_path'] ?? null, true);
}
try {
if (\DateTimeInterface::class === $type) {
$type = \DateTimeImmutable::class;
}
$timezone = $this->getTimezone($context);
$dateTimeFormat = $context[self::FORMAT_KEY] ?? null;
if (null !== $dateTimeFormat) {
if (false !== $object = $type::createFromFormat($dateTimeFormat, $data, $timezone)) {
return $object;
}
$dateTimeErrors = $type::getLastErrors();
throw NotNormalizableValueException::createForUnexpectedDataType(sprintf('Parsing datetime string "%s" using format "%s" resulted in %d errors: ', $data, $dateTimeFormat, $dateTimeErrors['error_count'])."\n".implode("\n", $this->formatDateTimeErrors($dateTimeErrors['errors'])), $data, [Type::BUILTIN_TYPE_STRING], $context['deserialization_path'] ?? null, true);
}
$defaultDateTimeFormat = $this->defaultContext[self::FORMAT_KEY] ?? null;
if (null !== $defaultDateTimeFormat) {
if (false !== $object = $type::createFromFormat($defaultDateTimeFormat, $data, $timezone)) {
return $object;
}
}
return new $type($data, $timezone);
} catch (NotNormalizableValueException $e) {
throw $e;
} catch (\Exception $e) {
throw NotNormalizableValueException::createForUnexpectedDataType($e->getMessage(), $data, [Type::BUILTIN_TYPE_STRING], $context['deserialization_path'] ?? null, false, $e->getCode(), $e);
}
}
/**
* @param array $context
*/
public function supportsDenormalization(mixed $data, string $type, ?string $format = null /* , array $context = [] */): bool
{
return isset(self::SUPPORTED_TYPES[$type]);
}
/**
* @deprecated since Symfony 6.3, use "getSupportedTypes()" instead
*/
public function hasCacheableSupportsMethod(): bool
{
trigger_deprecation('symfony/serializer', '6.3', 'The "%s()" method is deprecated, implement "%s::getSupportedTypes()" instead.', __METHOD__, get_debug_type($this));
return __CLASS__ === static::class;
}
/**
* Formats datetime errors.
*
* @return string[]
*/
private function formatDateTimeErrors(array $errors): array
{
$formattedErrors = [];
foreach ($errors as $pos => $message) {
$formattedErrors[] = sprintf('at position %d: %s', $pos, $message);
}
return $formattedErrors;
}
private function getTimezone(array $context): ?\DateTimeZone
{
$dateTimeZone = $context[self::TIMEZONE_KEY] ?? $this->defaultContext[self::TIMEZONE_KEY];
if (null === $dateTimeZone) {
return null;
}
return $dateTimeZone instanceof \DateTimeZone ? $dateTimeZone : new \DateTimeZone($dateTimeZone);
}
}