Question

我正在尝试在Symfony 4中制作一个简单的留言簿，我的目标是可以向该留言簿添加一条消息，但是在此之前， 内部激活。 我现在正在激活站点上，但是有一个我无法真正解决的问题。错误消息如下：

将实体绑定到仅可用于以下条件的实体查询参数有一个标识符。

我想做的是，在激活器表单未激活消息的ID 后， >，它从提供的表单中获取数据（ID），然后 Doctrine查找该ID的特定行。然后，它将 smallint（非布尔型）“ isActive” 行更改为 1 ，以便留言簿知道要显示的消息。

在“ $ message = $ repository-> find（$ id）; ” symfony无法将我的表单数据与查询参数绑定。我已经尝试过this的答案，但是也没有用。

GBActivatorController.php：

  use App\Entity\Guestbook;

  use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
  use Symfony\Component\Routing\Annotation\Route;
  use Symfony\Component\HttpFoundation\Response;
  use Symfony\Component\HttpFoundation\Request;
  use Symfony\Component\Form\Extension\Core\Type\TextType;
  use Symfony\Component\Form\Extension\Core\Type\NumberType;
  use Symfony\Component\Form\Extension\Core\Type\SubmitType;


  class GBActivatorController extends AbstractController
    {
        public function index(Request $request)
          {

            //sets up the entity guestbook and the entitymanager from doctrine
            $guestbook = new Guestbook();
            $entityManager = $this->getDoctrine()->getManager();

            //get all messages
            $list = $this->getDoctrine()
              ->getRepository(Guestbook::class)
              ->findAll();

              //create form for activating a non-activated message
            $activator = $this->createFormBuilder($guestbook)
              ->add('id', NumberType::class,
                array(
                  'mapped' => false,
              ))
              ->add('activate', SubmitType::class, ['label' => 'Activate'])
              ->getForm();

            $activator->handleRequest($request);

              /*when the submit button is clicked, get the data and
               find the row with the specific id that was given.*/
              if($activator->isSubmitted())
              {
                //gets the data from the form
                $id = $activator->getData();

                //sets up repository, so i dont need to type it again
                $repository = $this->getDoctrine()->getRepository(Guestbook::class);

                //(should) find the row
                $message = $repository->find($id);
                //activates row. (isActive = 1 instead of isActive = 0)
                $message->setIsActive(1);

                //persist and then execute to table
                $entityManager->persist($message);
                $entityManager->flush();
              }

            //renders the template
            return $this->render('GBActivator.html.twig', array(
              'list' => $list,
              'activator' => $activator->createView()
              ));

          }
    }

Entity / Guestbook.php：

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity(repositoryClass="App\Repository\GuestbookRepository")
 */
class Guestbook
{
    /**
     * @ORM\Id()
     * @ORM\GeneratedValue()
     * @ORM\Column(type="integer")
     */
    public $id;

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

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

    /**
     * @ORM\Column(type="smallint")
     */
    private $isActive;

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

    public function getEmail(): ?string
    {
        return $this->email;
    }

    public function setEmail(string $email): self
    {
        $this->email = $email;

        return $this;
    }

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

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

        return $this;
    }

    public function getIsActive(): ?int
    {
        return $this->isActive;
    }

    public function setIsActive(int $isActive): self
    {
        $this->isActive = $isActive;

        return $this;
    }
}

Answer 1

谢谢你。我的问题是我需要一个数组而不是字符串。愚蠢的我。我改变了

public function setId(Array $id)
{
    $this->id = $id;
}

到

public function setId(string $id)
    {
        $this->id = $id;
    }

无法将表单数据绑定到学说查找功能。 “ ORMInvalidArgumentException”

1 个答案: