How to serialize specific attributes of nested object in symfony?
How to serialize specific attributes of nested object in symfony?
1 answer
by
ryan.murray ,
a year ago
@addison
To serialize specific attributes of nested objects in Symfony, you can use the @Groups annotation from the Symfony Serializer component.
Here's an example of how you can serialize specific attributes of nested objects:
- Add the @Groups annotation to the properties you want to serialize in your entities:
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use SymfonyComponentSerializerAnnotationGroups;
class Book
{
/**
* @Groups({"details"})
*/
private $title;
/**
* @Groups({"details"})
*/
private $author;
// Other properties and methods
}
class Author
{
/**
* @Groups({"details"})
*/
private $name;
// Other properties and methods
}
|
- Use the @MaxDepth annotation to limit the nesting level of serialization:
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use SymfonyComponentSerializerAnnotationGroups;
use SymfonyComponentSerializerAnnotationMaxDepth;
class Book
{
/**
* @Groups({"details"})
*/
private $title;
/**
* @MaxDepth(1)
* @Groups({"details"})
*/
private $author;
// Other properties and methods
}
|
- Serialize the objects with the specific attributes using the @Groups annotation on the serializer:
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use SymfonyComponentSerializerSerializerInterface;
$serializer = $this->get('serializer');
$book = new Book();
$author = new Author();
$book->setTitle('The Great Gatsby');
$author->setName('F. Scott Fitzgerald');
$book->setAuthor($author);
$serializedData = $serializer->serialize($book, 'json', ['groups' => ['details']]);
|
This will serialize only the attributes marked with the @Groups annotation in the entities and disregard any other properties. You can also specify multiple groups if you need to serialize different sets of attributes for different use cases.
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