Symfony Exception

Error

HTTP 500 Internal Server Error

Call to a member function getId() on null

Exception

Error

  1.     #[Route("/city/{city_name}"name"place_city"methods: ['GET'])]
  2.     public function place_city(EntityManagerInterface $entityManagerstring $city_name): Response
  3.     {
  4.         $city $entityManager->getRepository(City::class)->findOneBy(['city_name' => $city_name]);
  5.         $cityId $city->getId();
  6.         $hotel $entityManager->getRepository(Hotel::class)->findBy(['city' => $cityId]);
  7.         $hotelNum count($hotel);
  8.         $restaurant $entityManager->getRepository(Restaurant::class)->findBy(['city' => $cityId]);
  9.         $resNum count($restaurant);
  10.         $thingsToDo $entityManager->getRepository(ThingsToDo::class)->findBy(['city' => $cityId]);
  1.         $this->dispatcher->dispatch($eventKernelEvents::CONTROLLER_ARGUMENTS);
  2.         $controller $event->getController();
  3.         $arguments $event->getArguments();
  4.         // call controller
  5.         $response $controller(...$arguments);
  6.         // view
  7.         if (!$response instanceof Response) {
  8.             $event = new ViewEvent($this$request$type$response$event);
  9.             $this->dispatcher->dispatch($eventKernelEvents::VIEW);
  1.         $request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
  2.         $this->requestStack->push($request);
  3.         $response null;
  4.         try {
  5.             return $response $this->handleRaw($request$type);
  6.         } catch (\Throwable $e) {
  7.             if ($e instanceof \Error && !$this->handleAllThrowables) {
  8.                 throw $e;
  9.             }
  1.         $this->boot();
  2.         ++$this->requestStackSize;
  3.         $this->resetServices true;
  4.         try {
  5.             return $this->getHttpKernel()->handle($request$type$catch);
  6.         } finally {
  7.             --$this->requestStackSize;
  8.         }
  9.     }
  1.         $this->request $request;
  2.     }
  3.     public function run(): int
  4.     {
  5.         $response $this->kernel->handle($this->request);
  6.         $response->send();
  7.         if ($this->kernel instanceof TerminableInterface) {
  8.             $this->kernel->terminate($this->request$response);
  9.         }
in vendor/autoload_runtime.php -> run (line 29)
  1. $app $app(...$args);
  2. exit(
  3.     $runtime
  4.         ->getRunner($app)
  5.         ->run()
  6. );
require_once('/var/www/html/vendor/autoload_runtime.php') in public/index.php (line 5)
  1. <?php
  2. use App\Kernel;
  3. require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
  4. return function (array $context) {
  5.     return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
  6. };

Logs

No log messages

Stack Trace

Error
Error:
Call to a member function getId() on null

  at src/Controller/FrontPageController.php:839
  at App\Controller\FrontPageController->place_city()
     (vendor/symfony/http-kernel/HttpKernel.php:181)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw()
     (vendor/symfony/http-kernel/HttpKernel.php:76)
  at Symfony\Component\HttpKernel\HttpKernel->handle()
     (vendor/symfony/http-kernel/Kernel.php:197)
  at Symfony\Component\HttpKernel\Kernel->handle()
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:29)
  at require_once('/var/www/html/vendor/autoload_runtime.php')
     (public/index.php:5)