The Normalization/Denormalization Process

config/services.yaml

parameters: services: # default configuration for services in *this* file _defaults: autowire: true # Automatically injects dependencies in your services. autoconfigure: true # Automatically registers your services as commands, event subscribers, etc. App\Serializer\PatchedDateTimeNormalizer: tags: ['serializer.normalizer']

src/Serializer/PatchedDateTimeNormalizer.php

<?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 App\Serializer; use Symfony\Component\Serializer\Exception\InvalidArgumentException; use Symfony\Component\Serializer\Exception\NotNormalizableValueException; use Symfony\Component\Serializer\Normalizer\CacheableSupportsMethodInterface; use Symfony\Component\Serializer\Normalizer\DenormalizerInterface; use Symfony\Component\Serializer\Normalizer\NormalizerInterface; /** * 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> */ class PatchedDateTimeNormalizer implements NormalizerInterface, DenormalizerInterface, CacheableSupportsMethodInterface { public function __construct(array $defaultContext = []) { $this->defaultContext = array_merge($this->defaultContext, $defaultContext); } /** * {@inheritdoc} * * @throws InvalidArgumentException */ public function normalize($object, string $format = null, array $context = []) { if (!$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); } /** * {@inheritdoc} * * @throws NotNormalizableValueException */ public function denormalize($data, string $type, string $format = null, array $context = []) { $dateTimeFormat = $context[self::FORMAT_KEY] ?? null; $timezone = $this->getTimezone($context); if ('' === $data || null === $data) { throw new NotNormalizableValueException('The data is either an empty string or null, you should pass a string that can be parsed with the passed format or a valid DateTime string.'); } if (null !== $dateTimeFormat) { $object = \DateTime::class === $type ? \DateTime::createFromFormat($dateTimeFormat, $data, $timezone) : \DateTimeImmutable::createFromFormat($dateTimeFormat, $data, $timezone); if (false !== $object) { return $object; } $dateTimeErrors = \DateTime::class === $type ? \DateTime::getLastErrors() : \DateTimeImmutable::getLastErrors(); throw new NotNormalizableValueException(sprintf('Parsing datetime string "%s" using format "%s" resulted in %d errors:'."\n".'%s', $data, $dateTimeFormat, $dateTimeErrors['error_count'], implode("\n", $this->formatDateTimeErrors($dateTimeErrors['errors'])))); } try { return \DateTime::class === $type ? new \DateTime($data, $timezone) : new \DateTimeImmutable($data, $timezone); } catch (\Exception $e) { if($context["disable_type_enforcement"] ?? false){ return $data; } throw new NotNormalizableValueException($e->getMessage(), $e->getCode(), $e); } } }

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