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Hi! For a form I would like to render a selectbox with values from another relation: Type. This is a many-to-one relation, owned by Type. Type has many Games, while Game has one Type My question is, how do I show a selectbox with values from Type? e.g: Game: Monopoly Select Type: (selectbox) - Party game - Strategy - Co-op - etc. ----------------------------------------------- This is what I have: GameType.php <?php namespace AppBundle\Form; use AppBundle\Entity\Type; 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'); $builder ->add( 'types', choiceType::class, [ 'class' => 'AppBundle:Type', 'choice_label' => 'name', 'multiple' => false, 'choices_as_values' => true, 'expanded' => true ] ); } /** * {@inheritdoc} */ public function configureOptions(OptionsResolver $resolver) { $resolver->setDefaults(array( 'types' => [], 'data_class' => 'AppBundle\Entity\Game' )); } /** * {@inheritdoc} */ public function getBlockPrefix() { return 'appbundle_game'; } } Entity/Game.php <?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 <?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; } } I'm starting out with Symfony, any help is greatly appreciated!