Symfony 6 App\Entity\Question object not found by the #ParamConverter annotation - symfony

Question

I try to make answers for question.
Here is my AnswerController:
#[Route('/{slug}/{name}/answer/{question}', name: 'answer_question')]
public function answer(Question $q, QuestionRepository $questionRepository, string $question, Request $request, EntityManagerInterface $entityManager, string $slug, string $name, AnswerRepository $answerRepository): Response
{
$questions = $questionRepository->findOneBySlug($question);
$answers = $answerRepository->findAnswers($question);
$form = $this->createForm(AnswerType::class);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$data = $form->getData();
$answer = new Answer();
$answer->setContent($data->getContent());
$answer->setAnsweredAt(new \DateTime);
$answer->setQuestion($q);
$entityManager->persist($answer);
$entityManager->flush();
return $this->redirectToRoute('show_question', [
'slug' => $slug,
'name' => $name,
'question' => $question,
]);
}
return $this->render('answer/index.html.twig', [
'questions' => $questions,
'answers' => $answers,
'answer' => $form->createView(),
]);
}
I have problem with
App\Entity\Question object not found by the #ParamConverter annotation
EDIT:
Still I have a little problem with wildcards,
for example when i put address "/audi-a3/8v/answer/question" it's ok, but when i put "/audi-a4/8v/answer/question" ( there isn't audi-a4 with model 8v but this address gives me correct page for "8V" model. It doesn't match ).
Can someone explain me how to do it right?

Answer 1

I did some changes in AnswerController and now it's working.
Set ParamConverter manually.
#[Route('/{car}/{name}/answer/{slug}', name: 'answer_question')]
#[ParamConverter('question', class: Question::class, options: ['mapping' => ['slug' => 'slug']])]
public function answer(Question $question, QuestionRepository $questionRepository, Request $request, EntityManagerInterface $entityManager, string $slug, string $name, string $car, AnswerRepository $answerRepository): Response
{
$questions = $questionRepository->findOneBySlug($slug);
$answers = $answerRepository->findAnswers($slug);
$form = $this->createForm(AnswerType::class);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$data = $form->getData();
$answer = new Answer();
$answer->setContent($data->getContent());
$answer->setAnsweredAt(new \DateTime);
$answer->setQuestion($question);
$entityManager->persist($answer);
$entityManager->flush();
return $this->redirectToRoute('show_question', [
'slug' => $slug,
'name' => $name,
'car' => $car,
]);
}
return $this->render('answer/index.html.twig', [
'questions' => $questions,
'answers' => $answers,
'answer' => $form->createView(),
]);
}