Add selectbox with values of relation in Symfony - php

Question

I'm a Symfony beginner and I'm eager to learn more about Symfony, that's why I started a learning project.
I have a many-to-one relation (Type has many Games, but Game has 1 Type), and I would like to show a select box with a list of "types" to choose from.
I get this error:
Could not load type "AppBundle\Form\choiceType"
This is my code:
GameController.php
<?php
namespace AppBundle\Controller;
use AppBundle\Entity\Game;
use AppBundle\Entity\Type;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;use Symfony\Component\HttpFoundation\Request;
/**
* Game controller.
*
* #Route("game")
*/
class GameController extends Controller
{
/**
* Lists all game entities.
*
* #Route("/", name="game_index")
* #Method("GET")
*/
public function indexAction()
{
$em = $this->getDoctrine()->getManager();
$games = $em->getRepository('AppBundle:Game')->findAll();
return $this->render('game/index.html.twig', array(
'games' => $games,
));
}
/**
* Creates a new game entity.
*
* #Route("/new", name="game_new")
* #Method({"GET", "POST"})
*/
public function newAction(Request $request)
{
$type = new Type();
$type->setName('test');
$game = new Game();
$game->setType($type);
$form = $this->createForm('AppBundle\Form\GameType', $game);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($type);
$em->persist($game);
$em->flush($game);
return $this->redirectToRoute('game_show', array('id' => $game->getId()));
}
return $this->render('game/new.html.twig', array(
'game' => $game,
'form' => $form->createView(),
));
}
/**
* Finds and displays a game entity.
*
* #Route("/{id}", name="game_show")
* #Method("GET")
*/
public function showAction(Game $game)
{
$deleteForm = $this->createDeleteForm($game);
return $this->render('game/show.html.twig', array(
'game' => $game,
'delete_form' => $deleteForm->createView(),
));
}
/**
* Displays a form to edit an existing game entity.
*
* #Route("/{id}/edit", name="game_edit")
* #Method({"GET", "POST"})
*/
public function editAction(Request $request, Game $game)
{
$deleteForm = $this->createDeleteForm($game);
$editForm = $this->createForm('AppBundle\Form\GameType', $game);
$editForm->handleRequest($request);
if ($editForm->isSubmitted() && $editForm->isValid()) {
$this->getDoctrine()->getManager()->flush();
return $this->redirectToRoute('game_edit', array('id' => $game->getId()));
}
return $this->render('game/edit.html.twig', array(
'game' => $game,
'edit_form' => $editForm->createView(),
'delete_form' => $deleteForm->createView(),
));
}
/**
* Deletes a game entity.
*
* #Route("/{id}", name="game_delete")
* #Method("DELETE")
*/
public function deleteAction(Request $request, Game $game)
{
$form = $this->createDeleteForm($game);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->remove($game);
$em->flush($game);
}
return $this->redirectToRoute('game_index');
}
/**
* Creates a form to delete a game entity.
*
* #param Game $game The game entity
*
* #return \Symfony\Component\Form\Form The form
*/
private function createDeleteForm(Game $game)
{
return $this->createFormBuilder()
->setAction($this->generateUrl('game_delete', array('id' => $game->getId())))
->setMethod('DELETE')
->getForm()
;
}
}
Update #3:
GameType.php
<?php
namespace AppBundle\Form;
use Doctrine\DBAL\Types\TextType;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
class GameType extends AbstractType
{
/**
* {#inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add( 'name', EntityType::class, [
'class' => 'AppBundle:Game',
'choice_label' => 'name',
'label' => 'name'
] );
$builder
->add( 'name', EntityType::class, [
'class' => 'AppBundle:Type',
'choice_label' => 'name',
'multiple' => false,
'expanded' => false
] );
}
/**
* {#inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\Game'
));
}
/**
* {#inheritdoc}
*/
public function getBlockPrefix()
{
return 'appbundle_game';
}
}
Entity\Game.php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Game
*
* #ORM\Table(name="game")
* #ORM\Entity(repositoryClass="AppBundle\Repository\GameRepository")
*/
class Game
{
/**
* #ORM\ManyToOne(targetEntity="Type", inversedBy="games")
* #ORM\JoinColumn(name="type_id", referencedColumnName="id")
*/
private $type;
/**
* #var int
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="name", type="string", length=255, unique=true)
*/
private $name;
/**
* Get id
*
* #return int
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* #param string $name
*
* #return Game
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* #return string
*/
public function getName()
{
return $this->name;
}
/**
* #return mixed
*/
public function getType()
{
return $this->type;
}
/**
* #param mixed $type
*/
public function setType($type)
{
$this->type = $type;
}
}
Entity\Type.php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Type
*
* #ORM\Table(name="type")
* #ORM\Entity(repositoryClass="AppBundle\Repository\TypeRepository")
*/
class Type
{
/**
* #ORM\OneToMany(targetEntity="Game", mappedBy="type")
*/
private $games;
public function __construct()
{
$this->games = new ArrayCollection();
}
/**
* #var int
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="name", type="string", length=255)
*/
private $name;
/**
* Get id
*
* #return int
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* #param string $name
*
* #return Type
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* #return string
*/
public function getName()
{
return $this->name;
}
/**
* #return mixed
*/
public function getGames()
{
return $this->games;
}
/**
* #param mixed $games
*/
public function setGames($games)
{
$this->games = $games;
}
}

Answer 1

If you are using the symfony form component, then choiceType isn't correct. the class is ChoiceType, simply capitalize the C and add the use statement above class declaration.
EDIT: You also need to update your form component type if you are selecting an existing entity for that field.
use Symfony\Component\Form\Extension\Core\Type\EntityType;
class GameType extends AbstractType
{
/**
* {#inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('name');
$builder
->add( 'types', EntityType::class, [
'class' => 'AppBundle:Type',
'choice_label' => 'name',
'multiple' => false,
'expanded' => true
] );
}
extra reading on using entities and forms Symfony Docs

Answer 2

In your case, You should use EntityType instead of ChoiseType.
$builder
->add('type', EntityType::class, [
'class' => Type::class,
'choice_label' => 'name',
'multiple' => false,
'expanded' => true
Be aware of upper or lower.