symfony fetchall with manyToOne relation returning same object multiple times - symfony

Question

I am new to symfony so its likely I am doing something wrong...
This is my DB with relation
I am trying to create API that will return things back, but student controller will return "grade" table in some nested strange form
class StudentController extends AbstractController
{
/**
* #Route("/api/student", name="student")
*/
public function getSubjects()
{
$repository = $this->getDoctrine()->getManager()->getRepository(Student::class);
$result = $repository->findAll();
return $this->json($result, Response::HTTP_OK, [], [
ObjectNormalizer::ENABLE_MAX_DEPTH => false,
ObjectNormalizer::IGNORED_ATTRIBUTES => ['student'],
ObjectNormalizer::CIRCULAR_REFERENCE_HANDLER => function ($object) {
return $object->getId();
}]
);
}
API will return:
{
"id": 1,
"OIB": 2147483647,
"name": "Amalia",
"surname": "Hill",
"address": "Derick Ports 82330",
"dateOfBirth": "2008-03-26T00:00:00+01:00",
"postalCode": {
"id": 241,
"name": "SOMEWHERE",
"postalCode": 31000,
"__initializer__": null,
"__cloner__": null,
"__isInitialized__": true
},
...
"scores": [
{
"id": 1,
"subject": {
"id": 3,
"code": "eng11",
"name": "ENGLISH",
"grade": {
"id": 1,
"grade": "1",
"__initializer__": null,
"__cloner__": null,
"__isInitialized__": true
},
"scores": [
{},
{
"id": 19,
"subject": {
"__initializer__": null,
"__cloner__": null,
"__isInitialized__": true
},
"score": 3,
"description": "Excepturi vitae ipsam sunt.",
"date": "2020-04-21T00:00:00+02:00"
},...
as you can see I have scores inside and that's OK, but inside score I have another score and I don't know how to get rid of it, any ideas?
// App\Entity\Student.php
/**
* #ORM\Entity(repositoryClass=StudentRepository::class)
*/
class Student
{
...
/**
* #ORM\OneToMany(targetEntity=Score::class, mappedBy="student")
*/
private $scores;
public function __construct()
{
$this->scores = new ArrayCollection();
}
/**
* #return Collection|Score[]
*/
public function getScores(): Collection
{
return $this->scores;
}
PS, that score with ID = 19 and rest, is all scores with same subject_id

Answer 1

Change the function name getScores() from Entity Subject, for sample getAllScores() , and add in the ignoring attributes :
return $this->json($result, Response::HTTP_OK, [], [
ObjectNormalizer::ENABLE_MAX_DEPTH => false,
ObjectNormalizer::IGNORED_ATTRIBUTES => ['student,allScores'],
ObjectNormalizer::CIRCULAR_REFERENCE_HANDLER => function ($object) {
return $object->getId();
}]
);
more here