symfony FOSRestBundle depth - symfony

Question

I'm using FOSRestBundle - with automatic rotues and automatic views. My action in Controller looks like this:
public function getAction($user_id)
{
$user = $this->em->getRepository('SBGUserBundle:User')->find($user_id);
return $user;
}
Everything is OK, my response in JSON format looks like this:
{
"id": 20,
"username": "fwojciechowski",
"mpks": [{
"id": 91,
"name": "Testowe MPK 1",
"managers": []
}, {
"id": 92,
"name": "Testowe MPK 2",
"teta_id": 1,
"managers": []
}]
}
But I have to take 1 level depth more - i need "managers" in "mpks" array.
But I don't need 3 levels in other cases.
How can I do it?

Answer 1

annotations
if you are using annotations you can do it like this yml configs later for reference.
first you go to the manager entity and add the following :
/**
* Manager
*
* #ORM\Table(name="manager")
* #ORM\Entity
*
* #Serializer\ExclusionPolicy("all")
*/
class Manager
{
......
/**
* #var int
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*
* #Serializer\Expose
* #Serializer\Groups({
* "user",
* })
*/
private $id;
now you decide what properties you need from the managers and add the following before each entity
* #Serializer\Expose
* #Serializer\Groups({
* "user",
* })
$property
then before your getAction you add this
/**
* Get User.
*
* #param User $user
*
* #return User
*
* #Route\Get("/users", options={"expose"=true})
*
* #View(serializerGroups={"user"}) \\notice that its the same group name from before Serializer\Groups({"user"})
*
* #ApiDoc(
* ....
* )
*/
public function getAction()
yml
it should look something like this
Acme\User:
exclusion_policy: ALL
properties:
id:
expose: true
username:
expose: true
mpks:
expose: true
Acme\Manager
exclusion_policy: ALL
properties:
id:
expose: true
first_name:
expose: true
last_name:
expose: true
#and the rest of your wanted properties