Symfony Serializer - Deserialize XML with attributes - php

Question

I cant figure out how to deserialize this xml with the symfony serializer
<?xml version="1.0" encoding="UTF-8"?>
<issues>
<issue id="1" name="test">
<page id="0" name="page 0"/>
<page id="1" name="page 1"/>
<page id="2" name="page 2"/>
....
</issue>
</issues>
I created entitys for issue and page like that
class Issue
{
#[ORM\Id]
#[ORM\Column]
#[SerializedName('issue/#id')]
private ?int $id = null;
#[ORM\Column(length: 255, nullable: true)]
#[SerializedName('issue/#name')]
private ?string $name = null;
#[ORM\OneToMany(mappedBy: 'issue', targetEntity: Page::class)]
#[SerializedPath('issue/page')]
private Collection $Pages;
.....
}
And the serializer is set up like that
$classMetadataFactory = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()));
$metadataAwareNameConverter = new MetadataAwareNameConverter($classMetadataFactory);
$normalizers = [
new ArrayDenormalizer(),
new ObjectNormalizer($classMetadataFactory, $metadataAwareNameConverter, null, new ReflectionExtractor())
];
$encoders = [new XmlEncoder()];
$serializer = new Serializer($normalizers, $encoders);
$issues = $serializer->deserialize($xml, Issue::class, 'xml', [
'xml_root_node_name' => 'issues',
]);
but i only get back a empty result:
^ App\Entity\Issue {#184 ▼
-id: null
-name: null
-Pages: Doctrine\Common\Collections\ArrayCollection {#140 ▼
-elements: []
}
}

Answer 1

First, remove issue/ in the values passed in the #SerializedName like this in your Issue class :
#[SerializedName('#id')]
private ?int $id = null;
And for the collection of pages :
#[SerializedPath('[page]')]
private Collection $pages;
You also need to tell to the deserialize method you want an array of issues, not just one :
$issues = $serializer->deserialize($xml, Issue::class.'[]', 'xml', [
'xml_root_node_name' => 'issues',
]);
Note that you will need to create a setId() method in your Issue class to populate the id, same for Page.