Question

我已经阅读了很多其他问题和答案，我的课程似乎看起来还不错，但我仍然得到了＆＃39;关联名称空间\ Class2＃property1指的是拥有方字段Namespace \ Class1＃property2，它不存在＆＃39;错误。

头等舱：

use Doctrine\Common\Collections\ArrayCollection;

/**
 * @Entity
 * @Table(name="projetcs", options={"collate"="utf8mb4_unicode_ci", "charset"="utf8mb4"})
 */
class Project
{
    /**
     * @var int
     * @Id
     * @GeneratedValue
     * @Column(type="integer", options={"unsigned":true})
     */
    protected $id;
    /**
     * @var ArrayCollection
     * @OneToMany(targetEntity="Release", mappedBy="project")
     */
    protected $releases;

    /**
     * Construtor.
     */
    public function __construct()
    {
        $this->releases = new ArrayCollection();
    }

    /**
     * Add release.
     *
     * @param \Hitec\HDS\Entity\Release $release
     *
     * @return Project
     */
    public function addRelease(\Hitec\HDS\Entity\Release $release)
    {
        $this->releases[] = $release;

        return $this;
    }

    /**
     * Remove release.
     *
     * @param \Hitec\HDS\Entity\Release $release
     */
    public function removeRelease(\Hitec\HDS\Entity\Release $release)
    {
        $this->releases->removeElement($release);
    }

    /**
     * Get releases.
     *
     * @return \Doctrine\Common\Collections\Collection
     */
    public function getReleases()
    {
        return $this->releases;
    }
}

第二课：

/**
 * @MappedSuperclass
 */
class Release
{
    /**
     * @var int
     * @Id
     * @GeneratedValue
     * @Column(type="integer", options={"unsigned":true})
     */
    protected $id;
    /**
     * @var \Hitec\HDS\Entity\Project
     * @ManyToOne(targetEntity="Project", inversedBy="releases")
     * @JoinColumn(name="project_id", referencedColumnName="id")
     */
    protected $project;

    /**
     * Set project.
     *
     * @param \Hitec\HDS\Entity\Project $project
     *
     * @return Release
     */
    public function setProject(\Hitec\HDS\Entity\Project $project)
    {
        $project->addRelease($this);
        $this->project = $project;

        return $this;
    }

    /**
     * Get project.
     *
     * @return \Hitec\HDS\Entity\Project
     */
    public function getProject()
    {
        return $this->project;
    }
}

运行doctrine orm:validate-schema时，我得到：

[Mapping] FAIL - 实体类＆＃39; Hitec \ HDS \ Entity \ Project＆＃39;映射无效：

关联Hitec \ HDS \ Entity \ Project＃releases是指不存在的拥有方Hitec \ HDS \ Entity \ Release＃项目。

这可能与第二类是MappedSuperclass的事实有关吗？

Answer 1

@MappedSuperclass不是实体。你不能参考它。你为什么想这样做？

为了使事情有效，你应该用一些@Entity

扩展它

class Project
{
//... rest of the code
    /**
     * @var ArrayCollection
     * @OneToMany(targetEntity="ConcreteRelease", mappedBy="project")
     */
    protected $releases;
//... rest of the code
}

/**
 * @Entity
 */
class ConcreteRelease extends Release {
// ... rest of the code
}

或者更改Release的注释，使其成为@Entity。

例如：

/**
 * @Entity
 * @Table(name="release")
 */
class Release {...}

另一种选择是在DB中使用鉴别器字段。见教义doc for details：

class Project
{
//... rest of the code
    /**
     * @var ArrayCollection
     * @OneToMany(targetEntity="AppRelease", mappedBy="project")
     */
    protected $releases;
//... rest of the code
}

/**
 * @Entity
 * @InheritanceType("SINGLE_TABLE")
 * @DiscriminatorColumn(name="discr", type="string")
 * @DiscriminatorMap({"app" = "AppRelease", "package" = "PackageRelease"})
 * @Table(name="release")
 */
class AppRelease {...}

/**
 * @Entity
 */
class PackageRelease {...}

另一个Doctrine映射错误

1 个答案: