Convert POST Request to Doctrine Entity - symfony

Question

Coming from a NodeJS environment, this seems like a nobrainer but I somehow did not figured it out.
given the function:
/**
* #Route("/", name="create_stuff", methods={"POST"})
*/
public function createTouristAttraction($futureEntity): JsonResponse
{
...
}
Let futureEntity have the same structure as my PersonEntity.
What is the best way of mapping that $futureEntity to a PersonEntity?
I tried to assign it manually, and then run my validations which seems to work, but i think this is cumbersome if a model has more than 30 fields...
Hint: Im on Symfony 4.4
Thank you!

Answer 1

Doc: How to process forms in Symfony
You need to install the Form bundle: composer require symfony/form (or composer require form if you have the Flex bundle installed)
Create a new App\Form\PersonType class to set the fields of your form and more: doc
In App\Controller\PersonController, when you instanciate the Form, just pass PersonType::class as a first parameter, and an new empty Person entity as a second one (the Form bundle will take care of the rest):
$person = new Person();
$form = $this->createForm(PersonType::class, $person);
The whole controller code:
<?php
namespace App\Controller;
use App\Entity\Person;
use App\Form\PersonType;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
class PersonController extends AbstractController
{
private $entityManager;
public function __construct(EntityManagerInterface $entityManager) {
$this->entityManager = $entityManager;
}
/**
* #Route("/person/new", name="person_new")
*/
public function new(Request $request): Response
{
$person = new Person(); // <- new empty entity
$form = $this->createForm(PersonType::class, $person);
// handle request (check if the form has been submited and is valid)
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$person = $form->getData(); // <- fill the entity with the form data
// persist entity
$this->entityManager->persist($person);
$this->entityManager->flush();
// (optional) success notification
$this->addFlash('success', 'New person saved!');
// (optional) redirect
return $this->redirectToRoute('person_success');
}
return $this->renderForm('person/new.html.twig', [
'personForm' => $form->createView(),
]);
}
}
The minimum to display your form in templates/person/new.html.twig: just add {{ form(personForm) }} where you want.