Owned Entity Types
文档:
不支持包含所属实体类型的继承层次结构
你可以通过移动来克服这个问题
public Address Address { get; set; }
,
public Address DeliveryAddress { get; set; }
和
public Address InvoicingAddress { get; set; }
来自的导航属性
Employee
和
Customer
基类
Person
public class Person
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public DateTime DateOfBirth { get; set; }
public Address Address { get; set; }
public Address DeliveryAddress { get; set; }
public Address InvoicingAddress { get; set; }
}
然后使用fluent API进行配置,以覆盖
Navigation_OwnedEntityProperty
所属实体列名的规则如下:
modelBuilder.Entity<Person>().OwnsOne(p => p.Address,
a =>
{
a.Property(p => p.AddressLine1).HasColumnName("EmployeeAddressLine1");
a.Property(p => p.AddressLine2).HasColumnName("EmployeeAddressLine2");
a.Property(p => p.AddressLine2).HasColumnName("EmployeeAddressLine3");
a.Property(p => p.City).HasColumnName("EmployeeAddressCity");
}).OwnsOne(p => p.DeliveryAddress,
a =>
{
a.Property(p => p.AddressLine1).HasColumnName("DeliveryAddressLine1");
a.Property(p => p.AddressLine2).HasColumnName("DeliveryAddressLine2");
a.Property(p => p.AddressLine2).HasColumnName("DeliveryAddressLine3");
a.Property(p => p.City).HasColumnName("DeliveryAddressCity");
}).OwnsOne(p => p.InvoicingAddress,
a =>
{
a.Property(p => p.AddressLine1).HasColumnName("InvoicingAddressLine1");
a.Property(p => p.AddressLine2).HasColumnName("InvoicingAddressLine2");
a.Property(p => p.AddressLine2).HasColumnName("InvoicingAddressLine3");
a.Property(p => p.City).HasColumnName("InvoicingAddressCity");
});
现在,如果你不想搬家,你可以走了
公共广播地址{get;set;}
,
和
公共地址InvoicingAddress{get;set;}
来自的导航属性
受雇者
和
基类
人
modelBuilder.Entity<Employee>().OwnsOne(p => p.Address,
a =>
{
a.ToTable("EmployeeAddresses");
});
modelBuilder.Entity<Customer>().OwnsOne(p => p.DeliveryAddress,
a =>
{
a.ToTable("DeliveryAddresses");
}).OwnsOne(p => p.InvoicingAddress,
a =>
{
a.ToTable("InvoicingAddresses");
});