无法在API POST-call中包含实体集合

Question

有问题的错误：

Entity of type AppEntityNutt 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.

我完全能够调用api POST将Squirrel实体添加到数据库中。使用这个Squirrel的id，我可以为Nutt实体预生成POST调用，结果是Nutt选项卡中正确相关的记录。

我似乎做不到的是允许Squirrel api调用包含我想在同一个api调用中插入的Nutts的相关集合。

我做错了什么？

JSON调用：

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

实体松鼠

/**
* @ORMEntity
* @ORMTable(name="squirrel")
*/
class Squirrel {
/**
* @ORMColumn(type="integer")
* @ORMId
* @ORMGeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORMColumn(type="string", length=100)
* @AssertNotBlank()
*
*/
private $name;
/**
* @ORMOneToMany(targetEntity="AppEntityNutt", mappedBy="squirrel", cascade={"persist", "remove"})
*/
private $nutts;
public function __construct()
{
$this->nutts = new DoctrineCommonCollectionsArrayCollection();
}
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;
}
}

实体松鼠已更新
setNutts已更改为：

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

实体Nutt

/**
* @ORMEntity
* @ORMTable(name="nutt")
*/
class Nutt {
/**
* @ORMManyToOne(targetEntity="AppEntitySquirrel", inversedBy="nutts")
* @ORMId
*/
private $squirrel;
/**
* @ORMColumn(type="integer")
* @ORMId
*/
private $size;
/**
* @ORMColumn(type="text")
* @AssertNotBlank()
*/
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$squirle的id标记被删除，因为它是一个关系：

/**
* @ORMManyToOne(targetEntity="AppEntitySquirrel", inversedBy="nutts")
*/
private $squirrel;

松鼠控制器

/**
* Squirrel controller.
* @Route("/api", name="api_")
*/
class SquirrelController extends AbstractFOSRestController
{
/**
* Lists all Squirrels.
* @RestGet("/squirrels")
* @return Response
*/
public function getSquirrelAction()
{
$repository = $this->getDoctrine()->getRepository(Squirrel::class);
$squirrels = $repository->findall();
return $this->handleView($this->view($squirrels));
}
/**
* Create Squirrel.
* @RestPost("/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
));
}
}

有一种坚果形式，但效果很好。

问题已由@mel在评论中解决

Answer 1

Id注释将列声明为主键，因此它成为必需的。但在这种情况下不需要它，因为squirrel是一个关系。

错误本身也提示在保存实体时字段为null，因此不会调用setSquirrel。

您也可以从size中删除注释。