So I have an url like this: localhost:8000/answer/create?id=254.

The full way to get is: localhost:8000/questions -> localhost:8000/questions/{question_id} -> localhost:8000/answer/create?id=254.

How to make an app read this id=254 as a question_id?

Part of Controller:

    /**
     * Create action.
     *
     * @param \Symfony\Component\HttpFoundation\Request $request          HTTP request
     * @param \App\Repository\AnswerRepository          $answerRepository Answer repository
     *
     * @return \Symfony\Component\HttpFoundation\Response HTTP response
     *
     * @throws \Doctrine\ORM\ORMException
     * @throws \Doctrine\ORM\OptimisticLockException
     *
     * @Route(
     *     "/create",
     *     methods={"GET", "POST"},
     *     name="answer_create",
     * )
     */
    public function create(Request $request, AnswerRepository $answerRepository): Response
    {
        $answer = new Answer();
        $form = $this->createForm(AnswerType::class, $answer);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $answerRepository->save($answer);
            $this->addFlash('success', 'answer_created_successfully');

            return $this->redirectToRoute('answer_index');
        }

        return $this->render(
            'answer/create.html.twig',
            ['form' => $form->createView(),
                'question_id' => $answer, ]
        );
    }

And template with form:

{% extends 'base.html.twig' %}

{% block title %}
    {{ 'title_answer_create'|trans ({'%id%': answer.id|default('')})}}
{% endblock %}

{% block body %}
    <h1>{{ 'title_answer_create'|trans }}</h1>
    {{ form_start(form, { method: 'POST', action: url('answer_create') }) }}
    {{ form_widget(form) }}
    <div class="form-group row float-sm-right">
        <input type="submit" value="{{ 'action_save'|trans }}" class="btn btn-primary" />
    </div>
    <div class="form-group row float-sm-left">
        <a href="{{ url('question_index') }}" class="btn btn-link">
            {{ 'action_back_to_list'|trans }}
        </a>
    </div>
    {{ form_end(form) }}
{% endblock %}

CodePudding user response：

Why dont you use it like this?

/**
 * Create action.
 *
 * @param \Symfony\Component\HttpFoundation\Request $request            HTTP request
 * @param \App\Repository\AnswerRepository          $answerRepository   Answer repository
 * @return \Symfony\Component\HttpFoundation\Response HTTP response
 *
 * @throws \Doctrine\ORM\ORMException
 * @throws \Doctrine\ORM\OptimisticLockException
 * @Route(
 *     "/create/{id}",
 *     methods={"GET", "POST"},
 *     name="answer_create",
 * )
 * @Entity("question", expr="repository.find(id)")
 */
public function create(Question $question, Request $request, AnswerRepository $answerRepository): Response
{


    $answer = new Answer();
    $answer->setQuestion($question);

    $form = $this->createForm(AnswerType::class, $answer);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        $answerRepository->save($answer);
        $this->addFlash('success', 'answer_created_successfully');

        return $this->redirectToRoute('answer_index');
    }

    return $this->render(
        'answer/create.html.twig',
        ['form' => $form->createView(),
            'question_id' => $answer, ]
    

if possible - you should name the parameter question_id to make it clear what it is.

CodePudding user response：

Check the Documentation as to what version of symfony you are using, but you can access query parameters via the $request object in your controller.

$question_id = $request->query->get('id');