Call to a member function has() on null - php

Question

im learning symfony. I have a twig using twig extension and i found that i cannot call a function from other controller inside twig extension.
so i have decide to use a service since the twig extension is using the service.
so i tried to call a function from controller in the service and call the function from the service in the twig extension.
Then, i have an error message that [Call to a member function has() on null], where $doct = $this->getDoctrine()->getManager(); in the controller.
this is the function in the controller that i'm trying to use
edited
namespace Customize\Controller;
use Customize\Entity\CustomRing;
use Customize\Entity\Ring;
use Customize\Repository\CustomProductRepository;
use Eccube\Controller\AbstractController;
use Eccube\Entity\BaseInfo;
use Eccube\Entity\Product;
use Eccube\Entity\ProductClass;
use Eccube\Event\EccubeEvents;
use Eccube\Event\EventArgs;
use Eccube\Repository\BaseInfoRepository;
use Eccube\Repository\ProductClassRepository;
use Eccube\Service\CartService;
use Eccube\Service\OrderHelper;
use Eccube\Service\PurchaseFlow\PurchaseContext;
use Eccube\Service\PurchaseFlow\PurchaseFlow;
use Eccube\Service\PurchaseFlow\PurchaseFlowResult;
use Google\Service\Monitoring\Custom;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\Annotation\Route;
class CartController extends AbstractController
{
/**
* #var ProductClassRepository
*/
protected $productClassRepository;
/**
* #var CartService
*/
protected $cartService;
/**
* #var PurchaseFlow
*/
protected $purchaseFlow;
/**
* #var BaseInfo
*/
protected $baseInfo;
/**
* #var CustomProductRepository
*/
protected $customProductRepository;
/**
* CartController constructor.
*
* #param ProductClassRepository $productClassRepository
* #param CartService $cartService
* #param PurchaseFlow $cartPurchaseFlow
* #param BaseInfoRepository $baseInfoRepository
* #param CustomProductRepository $customProductRepository
*/
public function __construct(
ProductClassRepository $productClassRepository,
CartService $cartService,
PurchaseFlow $cartPurchaseFlow,
BaseInfoRepository $baseInfoRepository,
CustomProductRepository $customProductRepository
) {
$this->productClassRepository = $productClassRepository;
$this->cartService = $cartService;
$this->purchaseFlow = $cartPurchaseFlow;
$this->baseInfo = $baseInfoRepository->get();
$this->customProductRepository = $customProductRepository;
}
public function image_route(){
$Carts = $this->cartService->getCarts();
$doct = $this->getDoctrine()->getManager();
$custom_images = array();
$Custom_product = $this->customProductRepository->customProductFindByName();
$Product = $doct->getRepository(Product::class)->find($Custom_product[0]->getId());
foreach ($Carts as $Cart) {
$items = $Cart->getCartItems();
foreach($items as $item ){
if($item->getProductClass()->getProduct()->getId() == $Product->getId()){
$custom = $item->getProductClass()->getCode();
$custom = $doct->getRepository(CustomRing::class)->find($custom);
$ring = $doct->getRepository(Ring::class)->find($custom->getRingBaseId());
$upload_directory= $this->getParameter('uploads_directory');
$ring_shape = $ring->getRingShape();
$ring_type = $ring->getRingType();
$upload = $upload_directory.'/customRing/ring/'.$ring_shape.'/'.$ring_type.'/';
$images = glob($upload."*.{jpg,png,jpeg,JPG,JPEG,PNG}", GLOB_BRACE);
for($i=0;$i<count($images);$i++){
$aa = explode('save_image/', $images[$i]);
$images[$i] = $aa[1];
}
array_push($custom_images,$images[0]);
}
}
}
return $custom_images;
use Customize\Controller\CartController;
/**
* #var CartController
*/
protected $cartController;
public function __construct(
SessionInterface $session,
EntityManagerInterface $entityManager,
ProductClassRepository $productClassRepository,
CartRepository $cartRepository,
CartItemComparator $cartItemComparator,
CartItemAllocator $cartItemAllocator,
OrderRepository $orderRepository,
TokenStorageInterface $tokenStorage,
AuthorizationCheckerInterface $authorizationChecker,
CartController $CartController
) {
$this->session = $session;
$this->entityManager = $entityManager;
$this->productClassRepository = $productClassRepository;
$this->cartRepository = $cartRepository;
$this->cartItemComparator = $cartItemComparator;
$this->cartItemAllocator = $cartItemAllocator;
$this->orderRepository = $orderRepository;
$this->tokenStorage = $tokenStorage;
$this->authorizationChecker = $authorizationChecker;
$this->cartController = $CartController;
}
/*other functions
.
.
*/
public function imagess(){
$temp = $this->cartController->image_route();
return $temp;
}
and this is the twig extension
use Eccube\Service\CartService;
class CartServiceExtension extends AbstractExtension
{
/**
* #var CartService
*/
protected $cartService;
public function get_image_route(){
$t = $this->cartService->imagess();
return $t;
//return ['11', '12'];
}
}
The line i got error in controller is
$doct = $this->getDoctrine()->getManager();
and when go inside getDoctrine()
trait ControllerTrait{
/**
* Shortcut to return the Doctrine Registry service.
*
* #return ManagerRegistry
*
* #throws \LogicException If DoctrineBundle is not available
*
* #final
*/
protected function getDoctrine()
{
if (!$this->container->has('doctrine')) {
throw new \LogicException('The DoctrineBundle is not registered in your application. Try running "composer require symfony/orm-pack".');
}
return $this->container->get('doctrine');
}
I don't know why but it seems has() function inside getDoctrine() returns null
how can i use the function from the controller so that i can pass the values of $custom_images into the twig?

Answer 1

To get Doctrine in any controller action, you can do away with that function/trait entirely and just inject the EntityManagerInterface into your action.
For example:
class SomeCustomController extends AbstractController
{
public function someControllerAction(Request $request, EntityManagerInterface $em): Response
{
// business logic
}
}