Question

我有两个实体Game和GameSource。游戏只有一个GameSource。

Game.php

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

/**
* @ORM\Table(name="game")
* @ORM\Entity(repositoryClass="AppBundle\Repository\GameRepository")
*/
class Game
{
    /**
     * @ORM\Column(type="tinyint",options={"unsigned" = true})
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;
    /**
     * 
     * @ORM\OneToOne(targetEntity="GameSource",mappedBy="game",cascade={"persist"})
     * @Assert\Type(type="AppBundle\Entity\GameSource")
     * @Assert\Valid()
     */
    private $gameSource;
}

GameSource.php

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;

/**
 * @ORM\Table(name="game_source")
 * 
 * @ORM\Entity(repositoryClass="AppBundle\Repository\GameSourceRepository")
 */
class GameSource
{
    /**
     * @ORM\Column(type="smallint",options={"unsigned" = true})
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;
    /**
     * @ORM\OneToOne(targetEntity="Game",inversedBy="gameSource")
     * @ORM\JoinColumn(nullable=false)
     */
    private $game;
}

表格GameType.php

<?php

namespace AppBundle\Form;

use AppBundle\Entity\Game;
use AppBundle\Form\GameSourceType;
use Symfony\Component\Form\{
    AbstractType,
    FormBuilderInterface
};
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\{
    TextType,
    CheckboxType
};

class GameType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('name', TextType::class, [
                'label'    => 'Nazwa rozgrywki',
                'required' => true
            ])
            ->add('gameSource', GameSourceType::class)
        ;
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => Game::class,
        ));
    }
}

GameController.php - addAction

public function addAction(Request $request)
{
    $gameEntity = new Game();

    $form = $this->createForm(GameType::class, $gameEntity);

    $form->handleRequest($request);


    if ($form->isSubmitted() && $form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($gameEntity);
        $em->flush();
    }
}

当我尝试坚持记录时我有错误

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'game_id' cannot be null

问题在于：当我尝试保存他时，实体GameSource没有看到游戏的ID。谁知道我做错了什么？

Answer 1

使用您的实体，当您调用setGameSource()函数时，您需要将Game实体与GameSource联系起来。例如，而不是：

public function setGameSource(?GameSource $gameSource): self
{
    $this->gameSource = $gameSource;

    return $this;
}

你会想要这样做：

public function setGameSource(?GameSource $gameSource): self
{
    $this->gameSource = $gameSource;
    $this->gameSource->setGame($this);

    return $this;
}

这样实体就可以正确连接。

Symfony3在Doctrine2中保留嵌入式表单（完整性约束违规：空字段）

1 个答案: