教义2“类别不存在".坚持 [英] Doctrine 2 "Class does not exist" on persist

问题描述

所以我有这两个类，它们之间具有OneToMany和ManyToOne关系:

So I have these two classes with OneToMany and ManyToOne relationships between them:

namespace RM\Entity;

use Doctrine\Common\Collections\ArrayCollection;

/**
 * @Table(name="users")
 * @Entity
 * @author Csabi
 */
class User {

    /**
     * @Id
     * @Column(name="id", type="integer", nullable=false)
     * @GeneratedValue(strategy="IDENTITY")
     * @OneToMany(targetEntity="JobListing", mappedBy="ownerId", orphanRemoval=true)
     */
    private $id;

    /**
     * @var string $displayname
     * @Column(type="string", nullable=false)
     */
    private $displayname;
}

和

namespace RM\Entity;

use Doctrine\Common\Collections\ArrayCollection;

/**
 * @Table(name="job_listings")
 * @Entity(repositoryClass="RM\Entity\Repository\JobListingRepository")
 * @author Csabi
 */
class JobListing {

    /**
     * @var integer $id 
     * @Column(name="id", type="integer", nullable=false)
     * @Id
     * @GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @var User
     * @ManyToOne(targetEntity="User",cascade={"persist"})
     * @JoinColumns({
     *  @JoinColumn(name="ownerId", referencedColumnName="id", nullable=false)
     * })
     */
    private $ownerId;

但是，在保存JobListing时，如果持久保存，则会引发以下错误:

However, when saving a JobListing, on persist it throws the following error:

Application error
Exception information:

Message: Class does not exist
Stack trace:

#0 library\Doctrine\ORM\Mapping\ClassMetadata.php(67): ReflectionClass->__construct(false)
#1 library\Doctrine\ORM\Mapping\ClassMetadataFactory.php(350): Doctrine\ORM\Mapping\ClassMetadata->__construct(false)
#2 library\Doctrine\ORM\Mapping\ClassMetadataFactory.php(260): Doctrine\ORM\Mapping\ClassMetadataFactory->newClassMetadataInstance(false)
#3 library\Doctrine\ORM\Mapping\ClassMetadataFactory.php(169): Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata(false)
#4 library\Doctrine\ORM\EntityManager.php(247): Doctrine\ORM\Mapping\ClassMetadataFactory->getMetadataFor(false)
#5 library\Doctrine\ORM\UnitOfWork.php(1222): Doctrine\ORM\EntityManager->getClassMetadata(false)
#6 library\Doctrine\ORM\UnitOfWork.php(1678): Doctrine\ORM\UnitOfWork->doPersist(1, Array)
#7 library\Doctrine\ORM\UnitOfWork.php(1252): Doctrine\ORM\UnitOfWork->cascadePersist(Object(RM\Entity\JobListing), Array)
#8 library\Doctrine\ORM\UnitOfWork.php(1201): Doctrine\ORM\UnitOfWork->doPersist(Object(RM\Entity\JobListing), Array)
#9 library\Doctrine\ORM\EntityManager.php(454): Doctrine\ORM\UnitOfWork->persist(Object(RM\Entity\JobListing))
#10 library\RM\Entity\JobListingService.php(54): Doctrine\ORM\EntityManager->persist(Object(RM\Entity\JobListing))
#11 application\controllers\JobListingController.php(28): RM\Entity\JobListingService->saveJobListing(Object(RM\Entity\JobListing))
#12 library\Zend\Controller\Action.php(516): JobListingController->addAction()

我在这里想念什么?

推荐答案

问题实际上出在我要保存的对象中.我没有将整个用户实体传递给ownerId，只有用户的ID.

The problem was actually in the object I was trying to save. I did not pass the whole User Entity to the ownerId, only the id of the user.

所以当方法

Doctrine\ORM\UnitOfWork->doPersist(1, Array)

被称为实际上是在尝试保存数字而不是用户实体.

was called it was actually trying to save a number instead of the User Entity.

这就是为什么抛出错误找不到类"的原因，因为没有类"1".

That is why the error "Class not found" was thrown, because there was no class "1".

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