DocIntrine @InheritanceType("JOINED")错误使用语句

Question

我正在尝试在Doctrine中使用继承类型,但是当我创建数据库时,它显示以下错误消息:

[Doctrine\Common\Annotations\AnnotationException]
[Semantical Error] The annotation "@InheritanceType" in class iMed\GestInfo
rmatiqueBundle\Entity\MaterielInformatique was never imported. Did you mayb
e forget to add a "use" statement for this annotation?

父类是.

namespace iMed\GestInformatiqueBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * MaterielInformatique
 *
 * @ORM\Table(name="MATERIEL_INFORMATIQUE")
 * @ORM\Entity
 * @InheritanceType("JOINED")
 * @DiscriminatorColumn(name="nature", type="string")
 * @DiscriminatorMap({"PCMP" = "PC", "IMPR" = "Imprimante", "ECRN" = "Ecran"})
 */
class MaterielInformatique
{
    /**
     * @var integer
     *
     * @ORM\Column(name="ID", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;
////
}

似乎我需要添加一行来导入一个类,但我不知道什么是类,有人有想法解决这个问题吗？

Answer 1

你ORM在InheritanceType命名空间中错过了前缀,试试这个:

/**
 * MaterielInformatique
 *
 * @ORM\Table(name="MATERIEL_INFORMATIQUE")
 * @ORM\Entity
 * @ORM\InheritanceType("JOINED")
 * @ORM\DiscriminatorColumn(name="nature", type="string")
 * @ORM\DiscriminatorMap({"PCMP" = "PC", "IMPR" = "Imprimante", "ECRN" = "Ecran"})
 */
class MaterielInformatique