[SOLVED] How do I persist my form to the database?

I need to persist my form to the database. I am using Symfony to do this and I have built a response entity:

<?php

namespace App\Entity;

use App\Repository\ResponseRepository;
use ApiPlatform\Core\Annotation\ApiResource;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;

use Symfony\Component\Serializer\Annotation\Groups;
use Symfony\Component\Serializer\Annotation\SerializedName;

use Symfony\Component\Validator\Constraints as Assert;


 * )
 * @ORM\Entity(repositoryClass=ResponseRepository::class)
 */
class Response
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(name="id", type="integer")
     * @Groups({"response:read"})
     * 
     */
    private $id;

    /**
     * @ORM\Column(name="answer", type="string", length=255)
     * @Groups({"response:write", "response:read", "session:read"})
     * @Assert\NotBlank()
     */
    private $answer;

    /**
     * @ORM\ManyToOne(targetEntity=Session::class, inversedBy="responses")
     * @ORM\JoinColumn(nullable=false)
     * @Assert\Valid
     */
    private $session;

    /**
     * @ORM\ManyToOne(targetEntity=Question::class, inversedBy="responses")
     * @ORM\JoinColumn(nullable=false)
     * @Groups({"response:read", "response:write"})
     */
    private $question;

    // /**
    //  * @ORM\OneToMany(targetEntity=QuestionsQuestionType::class, mappedBy="response")
    //  */
    // private $questionsQuestionType;

    public function __construct()
    {
        $this->questionsQuestionType = new ArrayCollection();
    }


    public function getId(): ?int
    {
        return $this->id;
    }

    public function getAnswer(): ?string
    {
        return $this->answer;
    }

    public function setAnswer(string $answer): self
    {
        $this->answer = $answer;

        return $this;
    }

    public function getSession(): ?Session
    {
        return $this->session;
    }

    public function setSession(?Session $session): self
    {
        $this->session = $session;

        return $this;
    }
    
    public function getQuestion(): ?Question
    {
        return $this->question;
    }

    public function setQuestion(?Question $question): self
    {
        $this->question = $question;

        return $this;
    }

A new response function in the ResponseController (please note QuizResponse is an alias of Response entity. This is to not confuse my response entity with Symfony Response) :

/**
     * @Route("/new", name="response_new", methods={"GET", "POST"})
     */
    public function new(Request $request, EntityManagerInterface $entityManager, QuestionRepository $questionRepository): Response
    {
        $questions = $questionRepository->findAll();
        // dd($questions);
        $response = new QuizResponse();
        $form = $this->createForm(ResponseType::class, $response); // problem exists
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            $entityManager->persist($response);
            $entityManager->flush();
            // $formData = $form->getData();
            // dd($formData);
            // echo 'this should work';exit;
            

            return $this->redirectToRoute('response_index', [], Response::HTTP_SEE_OTHER);
        }

        return $this->renderForm('response/new.html.twig', [
            'response' => $response,
            'question' => $questions,
            'form' => $form,
        ]);
    }

A ResponseType form:

<?php

namespace App\Form;

use App\Entity\Response;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;

class ResponseType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        
        
        
    }

    public function configureOptions(OptionsResolver $resolver): void
    {
        $resolver->setDefaults([
            'data_class' => Response::class,
        ]);
    }
}

And here is my twig template (_form.html.twig):

{{ form_start(form) }}

    

    <div class="mt-3">
    {% for question in question %}
        <input type="hidden" name="response[question][]" value="{{ question.id }}">
        {% set name = 'response[answer]['~ question.id ~']' %}
        {% if question.type == 'checkbox' %}
            {% set name = name ~ '[]' %}
        {% endif %}

        {#    {% if question.replies is defined %}#}
        <div class="mb-3 mt-3 border">
        <h3 class="mb-0" id="question-{{ question.id }}">{{ loop.index }}. {{ question.label }}</h3>
        </div>
        {% if question.type == 'checkbox' or question.type == 'radio' %}
            <div class="answers p-1">
            {% for answer in question.replies %}

                {% set id = 'answer-' ~ answer.id  %}

                <label for="{{ id }}">{{ answer.answer }}</label>
                <input type="{{ question.type }}" name="{{ name }}" id="{{ id }}">
            {% endfor %}
            </div>
        {% elseif question.type == 'textarea' %}
            <textarea name="{{ name }}" aria-labelledby="question-{{ question.id }}" cols="30" rows="5" class="form-control"></textarea>
        {% elseif question.type == 'number' %}
            <input type="number" name="{{ name }}" aria-labelledby="question-{{ question.id }}">
        {% else %}
            <input type="text" name="{{ name }}" aria-labelledby="question-{{ question.id }}" class="form-control">
        {% endif %}
        {#    {% endif %}#}

    {% endfor %}
    </div>

    <button class="btn btn-primary">{{ button_label|default('Submit') }}</button>
{#{{ form_end(form, {render_rest: false }) }}#}
{{ form_end(form) }}

It's completely detached from the responseType form which is why I believe it doesn't submit to the database... But I am not sure how to map the ResponseType form to the _form.html.twig