Deserialize JSON with nested categories - mysql

Question

My Controller Class:
public function postAction(Request $request)
{
$content = $request->getContent();
$category = $this->get('jms_serializer')->deserialize($content,'AppBundle\Entity\Category','json');
$errors = $this->get('validator')->validate($category);
if (count($errors) > 0) {
return new View("NAME LENGTH MUST BE >4",Response::HTTP_BAD_REQUEST);
} else {
$em = $this->getDoctrine()->getManager();
$em->persist($category);
$em->flush();
return new View($category, Response::HTTP_OK);
}
}
Entity:
class Category
{
private $id;
private $parent;
public function getChildren()
{
return $this->children;
}
private $children;
public function __construct()
{
$this->children = new ArrayCollection();
}
//setters and getters
Doctrine.yml:
AppBundle\Entity\Category:
type: entity
oneToMany:
children:
targetEntity: AppBundle\Entity\Category
mappedBy: parent
orderBy:
name: ASC
manyToOne:
parent:
targetEntity: AppBundle\Entity\Category
inversedBy: children
joinColumn:
name: parentId
referencedColumn: id
table: category
repositoryClass: AppBundle\Repository\CategoryRepository
id:
id:
column: id
type: integer
id: true
generator:
strategy: AUTO
fields:
name:
type: string
lenght: 255
When I send POST json request like this:
{
"name": "Child to 8",
"parentId": "8"
}
In MySQL table i do not recieve parentId:
mysql> select * from category;
+----+--------------------+----------+
| id | name | parentId |
+----+--------------------+----------+
| 1 | Primary Category | NULL |
| 2 | Secondary Category | 1 |
| 3 | D_child | 1 |
| 4 | F_child | 1 |
| 5 | Z_child | 1 |
| 6 | Y_child | 1 |
| 7 | H_child | 1 |
| 8 | A_child | 1 |
| 9 | Child to 8 | NULL |<----- must be 8
+----+--------------------+----------+
But after deserialization i receive this:
{
"id": 9,
"name": "Child to 8"
}
I understand that id is an integer, but parentId is already an object of class Category. But how to make it so that he also signed up?
How can i do this? Maybe I do not understand something ...

Answer 1

You need to have a .yml config file for serializer. In your case - Entity.Category.yml.
In this file add property of nested entities, set him a type of you Entity and for be sure accessors (setter, getter).