无法在 API POST 调用中包含实体集合

Question

问题中的错误：

Entity of type App\Entity\Nutt is missing an assigned ID for field  'squirrel'.
The identifier generation strategy for this entity requires the ID field to be populated before EntityManager#persist() is called.
If you want automatically generated identifiers instead you need to adjust the metadata mapping accordingly.

我完全可以调用 api POST 将 Squirrel 实体添加到数据库中。使用此 Squirrel 的 ID，我可以执行 POST 对 Nutt 实体的调用，结果是 Nutt 表中的正确相关记录。

我似乎无法工作的是允许 Squirrel api 调用包含我想在同一个 api 调用中插入的相关 Nutts 集合。

我做错了什么？

JSON调用：

{
    "name": "Jake",
    "nutts": [
        {
            "size": 10,
            "color": "blue"
        }
    ]
}

松鼠实体

/**
 * @ORM\Entity
 * @ORM\Table(name="squirrel")
 */
class Squirrel {
  /**
   * @ORM\Column(type="integer")
   * @ORM\Id
   * @ORM\GeneratedValue(strategy="AUTO")
   */
  private $id;
  /**
   * @ORM\Column(type="string", length=100)
   * @Assert\NotBlank()
   *
   */
  private $name;
  /**
   * @ORM\OneToMany(targetEntity="App\Entity\Nutt", mappedBy="squirrel", cascade={"persist", "remove"})
   */
  private $nutts;
  public function __construct()
  {
    $this->nutts = new \Doctrine\Common\Collections\ArrayCollection();
  }
  public function getId()
  {
    return $this->id;
  }
  public function setId($id)
  {
    $this->id = $id;
  }
  public function getName()
  {
    return $this->name;
  }
  public function setName($name)
  {
    $this->name = $name;
  }
  public function getNutts(): ?Collection
  {
    return $this->nutts;
  }
  public function setNutts(Collection $nutts)
  {
    foreach ($nutts as $nutt)
    {
      $this->nutts->add($nutt);
    }
  }
  public function addNutt(Nutt $nutt): Squirrel
  {
    $this->nutts->add($nutt);
    return $this;
  }
}

松鼠实体已更新。
setNutts 已更改为：

public function setNutts(Collection $nutts)
{
  foreach ($nutts as $nutt)
  {
    $nutt->setSquirrel($this);
    $this->nutts->add($nutt);
  }
}

实体纳特

/**
 * @ORM\Entity
 * @ORM\Table(name="nutt")
 */
class Nutt {
  /**
   * @ORM\ManyToOne(targetEntity="App\Entity\Squirrel", inversedBy="nutts")
   * @ORM\Id
   */
  private $squirrel;
  /**
   * @ORM\Column(type="integer")
   * @ORM\Id
   */
  private $size;
  /**
   * @ORM\Column(type="text")
   * @Assert\NotBlank()
   */
  private $color;
  /**
   * @return Squirrel|null
   */
  public function getSquirrel(): ?Squirrel
  {
    return $this->squirrel;
  }
  /**
   * @param Squirrel|null $squirrel
   * @return $this
   */
  public function setSquirrel(?Squirrel $squirrel): self
  {
    $this->squirrel = $squirrel;
    return $this;
  }
  //getters and setters for the rest
}

实体 Nutt 已更新。属性 $squirrel 删除了它的 id 符号，因为它是一个关系：

/**
 * @ORM\ManyToOne(targetEntity="App\Entity\Squirrel", inversedBy="nutts")
 */
private $squirrel;

松鼠控制器

/**
 * Squirrel controller.
 * @Route("/api", name="api_")
 */
class SquirrelController extends AbstractFOSRestController
{
  /**
   * Lists all Squirrels.
   * @Rest\Get("/squirrels")
   * @return Response
   */
  public function getSquirrelAction()
  {
    $repository = $this->getDoctrine()->getRepository(Squirrel::class);
    $squirrels = $repository->findall();
    return $this->handleView($this->view($squirrels));
  }
  /**
   * Create Squirrel.
   * @Rest\Post("/squirrel")
   *
   * @return Response
   */
  public function postSquirrelAction(Request $request)
  {
    $squirrel = new Squirrel();
    $form = $this->createForm(SquirrelType::class, $squirrel);
    $data = json_decode($request->getContent(), true);
    $form->submit($data);
    if ($form->isSubmitted() && $form->isValid()) {
      $em = $this->getDoctrine()->getManager();
      $em->persist($squirrel);
      $em->flush();
      return $this->handleView($this->view(['status' => 'ok'], Response::HTTP_CREATED));
    }
    return $this->handleView($this->view($form->getErrors()));
  }
}

以及我目前的关注点 松鼠形态

class SquirrelType extends AbstractType
{
  public function buildForm(FormBuilderInterface $builder, array $options)
  {
    $builder
      ->add('name')
      ->add(
        'nutts',
        CollectionType::class, [
          'entry_type' => NuttType::class,
          'allow_add' => true,
          'by_reference' => false
        ])
      ->add('save', SubmitType::class);
  }
  public function configureOptions(OptionsResolver $resolver)
  {
    $resolver->setDefaults(array(
      'data_class' => Squirrel::class,
      'csrf_protection' => false
    ));
  }
}

有一个 nutt 形式，但它工作正常。

@mel 在评论中解决了问题

Answer 1

Id annotation 将该列声明为主键，因此它成为强制性的。但在这种情况下不需要，因为 squirrel 是一个关系。

错误本身也提示保存实体时该字段为空，因此未调用 setSquirrel。

您也可以从 size 中删除注释。

无法在 API POST 调用中包含实体集合

Unable to include Collection of Entities inside API POST-call

php

api

symfony

doctrine-orm

fosrestbundle