Circular reference for Repository in Symfony 5 - symfony

Question

I try to follow this tutorial : https://www.thinktocode.com/2018/03/05/repository-pattern-symfony/.
It's suppose to help structure your Repository.
But when i get to this point :
final class ProductRepository
{
/**
* #var EntityManagerInterface
*/
private $entityManager;
/**
* #var ObjectRepository
*/
private $objectRepository;
public function __construct(EntityManagerInterface $entityManager)
{
$this->entityManager = $entityManager;
$this->objectRepository = $this->entityManager->getRepository(Product::class);
}
public function find(int $productId): Product
{
$product = $this->objectRepository->find($productId);
return $product;
}
public function findOneByTitle(string $title): Product
{
$product = $this->objectRepository
->findOneBy(['title' => $title]);
return $product;
}
public function save(Product $product): void
{
$this->entityManager->persist($product);
$this->entityManager->flush();
}
}
And testing my Repository with this test case :
<?php
namespace App\Tests\Repository;
use App\Repository\ProductRepository;
use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
class ProductRepository_KernelTest extends KernelTestCase
{
private ?ProductRepository $_productRepository;
protected function setUp(): void
{
$kernel = self::bootKernel();
$this->_productRepository = self::$container->get(ProductRepository::class);
}
public function test_findAllProductNatByLabelForLabelEmptyReturnTenProduct()
{
dump($this->_productRepository->findAllProductsByLabel('AACIFEMINE'));
die();
}
}
It loop endlessly.
I think it's due to this code :
public function __construct(EntityManagerInterface $entityManager)
{
$this->entityManager = $entityManager;
$this->objectRepository = $this->entityManager->getRepository(Product::class); // <-----
}
As it call the ProductRepository constructor inside of this same constructor... So i guess it's why that loop
So I don't know. Is this tutorial just wrong or not up to date ?

Answer 1

https://www.thinktocode.com/2018/03/05/repository-pattern-symfony/#comment-4155200782
Maciej,
You are correct that in these example we are using 2 repositories. The
object repository from doctrine inside our own custom repository. This
allows use to be decoupled from doctrine's repository and still change
this in the future. This means to not set your custom repository as
the default repository in your entity.
You can get rid of inject the object repository, and in so only be
using 1 repository by implementing a BaseRepository class in which you
create the basic findBy, findOneBy, createQueryBuilder yourself. Take
a look at the EntityRepository in Doctrine/ORM. This might be a good
follow up topic to go over in a future article to create a better
solution then I suggested in here.