mirror of
https://github.com/Part-DB/Part-DB-server.git
synced 2025-06-21 01:25:55 +02:00
97 lines
No EOL
4 KiB
PHP
97 lines
No EOL
4 KiB
PHP
<?php
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/*
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* This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
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*
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* Copyright (C) 2019 - 2023 Jan Böhmer (https://github.com/jbtronics)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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namespace App\Serializer;
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use App\Entity\Base\AbstractStructuralDBElement;
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use App\Repository\StructuralDBElementRepository;
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use Doctrine\ORM\EntityManagerInterface;
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use Symfony\Component\DependencyInjection\Attribute\Autowire;
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use Symfony\Component\Serializer\Normalizer\CacheableSupportsMethodInterface;
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use Symfony\Component\Serializer\Normalizer\DenormalizerAwareInterface;
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use Symfony\Component\Serializer\Normalizer\DenormalizerAwareTrait;
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use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
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use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
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/**
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* @see \App\Tests\Serializer\StructuralElementDenormalizerTest
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*/
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class StructuralElementDenormalizer implements DenormalizerInterface
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{
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private array $object_cache = [];
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public function __construct(
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private readonly EntityManagerInterface $entityManager,
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#[Autowire(service: ObjectNormalizer::class)]
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private readonly DenormalizerInterface $denormalizer)
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{
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}
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public function supportsDenormalization($data, string $type, string $format = null, array $context = []): bool
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{
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return is_array($data)
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&& is_subclass_of($type, AbstractStructuralDBElement::class)
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//Only denormalize if we are doing a file import operation
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&& in_array('import', $context['groups'] ?? [], true);
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}
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public function denormalize($data, string $type, string $format = null, array $context = []): ?AbstractStructuralDBElement
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{
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/** @var AbstractStructuralDBElement $deserialized_entity */
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$deserialized_entity = $this->denormalizer->denormalize($data, $type, $format, $context);
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//Check if we already have the entity in the database (via path)
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/** @var StructuralDBElementRepository $repo */
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$repo = $this->entityManager->getRepository($type);
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$path = $deserialized_entity->getFullPath(AbstractStructuralDBElement::PATH_DELIMITER_ARROW);
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$db_elements = $repo->getEntityByPath($path, AbstractStructuralDBElement::PATH_DELIMITER_ARROW);
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if ($db_elements !== []) {
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//We already have the entity in the database, so we can return it
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return end($db_elements);
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}
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//Check if we have created the entity in this request before (so we don't create multiple entities for the same path)
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//Entities get saved in the cache by type and path
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//We use a different cache for this then the objects created by a string value (saved in repo). However, that should not be a problem
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//unless the user data has mixed structure between json data and a string path
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if (isset($this->object_cache[$type][$path])) {
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return $this->object_cache[$type][$path];
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}
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//Save the entity in the cache
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$this->object_cache[$type][$path] = $deserialized_entity;
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//We don't have the entity in the database, so we have to persist it
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$this->entityManager->persist($deserialized_entity);
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return $deserialized_entity;
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}
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public function getSupportedTypes(): array
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{
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//Must be false, because we use in_array in supportsDenormalization
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return [
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AbstractStructuralDBElement::class => false,
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];
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}
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} |