Symfony 6 Session RequestStack - php

Question

I'm trying to create a Cart under Symfony 6.1.2
I want to add my product in my cart but i have this error message : Warning: Undefined variable $session
public function get()
{
//return $this->session->get('cart');
return $session->get('cart');
}
i've commented a line because i was using SessionInterface but this is not used anymore on Symfony 6.1.
I don't get where is my error so i'm there to have some help.
This is my Cart.php (with some commented lines from SessionInterface)
<?php
namespace App\Classe;
use Symfony\Component\HttpFoundation\RequestStack;
//use Symfony\Component\HttpFoundation\Session\SessionInterface;
class Cart
{
//private $session;
private $requestStack;
//public function __construct(SessionInterface $session)
public function __construct(RequestStack $requestStack)
{
//$this->session = $session;
$this->requestStack = $requestStack;
}
public function add($id)
{
$session = $this->requestStack->getSession();
$cart = $session->get('cart', []);
if (!empty($cart[$id])) {
$cart[$id]++;
} else {
$cart[$id] = 1;
}
$session->set('cart',$cart);
/* $cart = $this->session->get('cart', []);
if (!empty($cart[$id])) {
$cart[$id]++;
} else {
$cart[$id] = 1;
}
$this->session->set('cart', $cart); */
}
public function get()
{
//return $this->session->get('cart');
return $session->get('cart');
}
public function remove()
{
//return $this->session->remove('cart');
return $session->remove('cart');
}
}
and this is my CartController.php
<?php
namespace App\Controller;
use App\Classe\Cart;
use App\Entity\Product;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
class CartController extends AbstractController
{
private $entityManager;
public function __construct(EntityManagerInterface $entityManager)
{
$this->entityManager = $entityManager;
}
/**
* #Route("/mon-panier", name="cart")
*/
public function index(Cart $cart)
{
$cartComplete = [];
foreach ($cart->get() as $id => $quantity){
$cartComplete[] = [
'product' => $this->entityManager->getRepository(Product::class)-
>findOneById($id),
'quantity' => $quantity
];
}
return $this->render('cart/index.html.twig', [
'cart' => $cartComplete
]);
}
/**
* #Route("/cart/add/{id}", name="add_to_cart")
*/
public function add(Cart $cart, $id)
{
$cart->add($id);
return $this->redirectToRoute('cart');
}
/**
* #Route("/cart/remove/", name="remove_my_cart")
*/
public function remove(Cart $cart)
{
$cart->remove();
return $this->redirectToRoute('products');
}
}
If i miss something it would be kind to show me where is the mistake.
Thank you ;)

Answer 1

i found the solution.
With ResquestStack, i was wrong doing this :
public function get()
{
return $session->get('cart');
}
public function remove()
{
return $session->remove('cart');
}
I've changed my returns with :
public function get()
{
return $this->requestStack->getSession()->get('cart');
}
public function remove()
{
return $this->requestStack->getSession()->remove('cart');
}
}
Now everything is ok, in case of someone was block in this kind of situation