php – Doctrine继承 – 从连接表继承的Single_Table

一个实体“帐户”,其中包含对两个其他实体的JOINED继承：“作者”和“AccountBackend”.

然后我希望“AccountBackend”与其他两个实体具有SINGLE_TABLE继承：“Administrator”和“FeaturedAuthor”.这是我定义它们的方式：

Account.php

/** 
 * @Entity (repositoryClass="RepositoriesAccount") 
 * @Table(name="accounts")  
 * @InheritanceType("JOINED")
 * @DiscriminatorColumn(name="discr",type="integer")
 * @DiscriminatorMap({"1"="Author","2"="AccountBackend"})
 * @HasLifecycleCallbacks
 */
class Account
{

Curator.php

/**
 * @Entity
 * @Table(name="accounts_author")
 */
class Author extends Account
{

AccountBackend.php

/** 
 * @Entity (repositoryClass="RepositoriesAccountBackend") 
 * @Table(name="accounts_backend")  
 * @InheritanceType("SINGLE_TABLE")
 * @DiscriminatorColumn(name="discr",type="integer")
 * @DiscriminatorMap({"1"="FeaturedAuthor","2"="Administrator"})
 * @HasLifecycleCallbacks
 */
class AccountBackend extends Account
{

FeaturedAuthor.php

/**
 * @Entity
 */
class FeaturedAuthor extends AccountBackend
{

Administrator.php

/**
 * @Entity
 */
class Administrator extends AccountBackend
{

当我定义它们时,当我尝试通过CLI进行更新时,它说

“Entity ‘EntitiesAccountBackend’ has to be part of the discriminator
map of ‘EntitiesAccount’ to be properly mapped in the inheritance
hierachy. Alternatively you can make ‘EntitiesAccountBackend’ an
abstract class to avoid this exception from occuring.”

我没有看到我定义它们的方式有任何问题,这是我第一次尝试在已经继承的Entity上继承.什么意思错了？谢谢！