EF core 2.0，TPH 模型类中的OwnsOne

Question

当我尝试在 EF Core 2.0 中迁移模型时遇到问题。

public class Profile
{
    [Key]
    public Guid Id { get; set; }

    public Guid UserId { get; set; }
    public ExternalUser User { get; set; }
}

public class OrganizationCustomerProfile : Profile
{
    public string CompanyName { get; set; }

    public Address LegalAddress { get; set; }
    public Address ActualAddress { get; set; }

    public BusinessRequisites Requisites { get; set; }

    public string President { get; set; }

    public IEnumerable<ContactPerson> ContactPerson { get; set; }
}

public class PersonCustomerProfile : Profile
{
    public FullName Person { get; set; }

    public Address Address { get; set; }
    public string PhoneNumber { get; set; }
}

public class ContactPerson
{
    [Key]
    public Guid Id { get; set; }

    public FullName Person { get; set; }

    public string Rank { get; set; }
    public string Email { get; set; }
    public string PhoneNumber { get; set; }

    public Guid ProfileId { get; set; }
    public Profile Profile { get; set; }
}

这里我想添加复杂的数据类型Address和BusinessRequisites，分别是：

public class BusinessRequisites
{
    public string OGRN { get; set; }
    public string INN { get; set; }
    public string KPPCode { get; set; }

    public string SettlementAccount { get; set; }

    public string RCBIC { get; set; }

    public string CorrespondentAccount { get; set; }

    public string BankName { get; set; }
}

public class Address
{
    public string FullAddress { get; set; }

    public float Latitude { get; set; } 
    public float Longtitude { get; set; }
}

我用于 TPH 绑定的代码：

public DbSet<Profile> UserProfiles { get; set; }
public DbSet<ContactPerson> ContactPerson { get; set; }
public DbSet<OrganizationCustomerProfile> OrganizationCustomerProfile { get; set; }

...

modelBuilder.Entity<Profile>().HasKey(u => u.Id);

modelBuilder.Entity<OrganizationCustomerProfile>().OwnsOne(e => e.ActualAddress);
modelBuilder.Entity<OrganizationCustomerProfile>().OwnsOne(e => e.LegalAddress);
modelBuilder.Entity<OrganizationCustomerProfile>().OwnsOne(e => e.Requisites);

但是当我尝试进行迁移时，我得到一个错误：

"不能将表 'UserProfiles' 用于实体类型 'OrganizationCustomerProfile.ActualAddress#Address' 因为它有一个 与派生实体类型“OrganizationCustomerProfile”的关系。 将关系指向基本类型“配置文件”或映射 'OrganizationCustomerProfile.ActualAddress#Address' 到不同的 表。”

那么，这个错误的原因是什么？ EF Core 2.0 不能创建层次继承吗？

谢谢！

Answer 1

目前似乎不支持此功能：

https://github.com/aspnet/EntityFrameworkCore/issues/9888