php - Symfony/Sonata ModelType not working correctly

Question

I'm using Sonata Admin Bundle to make crud operations on an entity.

The entity has a OneToMany relation with itself.

The form show correctly but the items i try to add to the entity aren't getting added.

When i manually link an entity to another in the database, it shows correctly on the edit form, but still can't change it.

here is my code :

NavBarAdmin.php :

protected function configureFormFields(FormMapper $formMapper)
{
    $formMapper->add('text', TextType::class)
        ->add('link', TextType::class)
        ->add('children', ModelType::class, [
        'class' => NavItem::class,
        'property' => 'text',
        'multiple' => true
    ]);
}

services.yaml :

admin.navbar:
    class: App\Admin\NavBarAdmin
    arguments: [ ~, App\Entity\NavItem, App\Controller\NavBarAdminController, ~ ]
    tags:
        - { name: sonata.admin, manager_type: orm, label: Nav bar }

NavItem.php :

namespace App\Entity;

use App\Repository\NavItemRepository;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;


class NavItem
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(type="integer")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $text;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $link;

    /**
     * @ORM\ManyToOne(targetEntity=NavItem::class, inversedBy="children")
     */
    private $parent;

    /**
     * @ORM\OneToMany(targetEntity=NavItem::class, mappedBy="parent")
     */
    private $children;


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

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

    public function getText(): ?string
    {
        return $this->text;
    }

    public function setText(string $text): self
    {
        $this->text = $text;

        return $this;
    }

    public function getLink(): ?string
    {
        return $this->link;
    }

    public function setLink(string $link): self
    {
        $this->link = $link;

        return $this;
    }

    public function getParent(): ?self
    {
        return $this->parent;
    }

    public function setParent(?self $parent): self
    {
        $this->parent = $parent;

        return $this;
    }

    /**
     * @return Collection|self[]
     */
    public function getChildren(): Collection
    {
        return $this->children;
    }

    public function addChild(self $child): self
    {
        if (!$this->children->contains($child)) {
            $this->children[] = $child;
            $child->setParent($this);
        }

        return $this;
    }

    public function removeChild(self $child): self
    {
        if ($this->children->removeElement($child)) {
            // set the owning side to null (unless already changed)
            if ($child->getParent() === $this) {
                $child->setParent(null);
            }
        }

        return $this;
    }

}

标签： phpsymfonysonata-adminsymfony-sonata