Get doctrine container in symfony 4?

Question

symfony

tell me how to get an instance of the doctrine class
In all examples they write something like:
$this->getDoctrine()
$this->getContener->get('doctrine');
how to get it without $this ?
What namespace is needed? my class does not inherit a bunch of everything.

Answer 1

Use dependency injection

Answer 2

use Symfony\Bridge\Doctrine\RegistryInterface;
// ...
protected $doctrine;
// ...
public function __construct(RegistryInterface $registry)
{
    // доктрина ($registry) в констуктор заинжектится сама
    $thits->doctrine = $registry;
}

Answer 3

Can you give an example why you need it? Maybe you don't need a copy of the doctrine?