复杂类型：一个模型中有多个实例？ [英] Complex type: multiple instances in one model?

问题描述

是否可以使用Fluent api模型生成器在同一模型中包含多个复杂类型的实例？

Is there a way to have multiple instances of complex type inside the same model using Fluent api model builder?

public class Contact
{
     public int Id { get; set; }
     public string FirstName { get; set; }
     public string LastName { get; set; }

     public Address PersonalAddress { get; set; }
     public Address BusinessAddress { get; set; }
}

public class Address
{
     public string Street{ get; set; }
     public string City{ get; set; }
     public string PostalCode{ get; set; }
}


protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
     base.OnModelCreating(modelBuilder);

     modelBuilder.Configurations.Add(new ContactConfiguration());
     modelBuilder.Configurations.Add(new AddressConfiguration());
}

=============== ================================================== ==============

==================================================================================

public class AddressConfiguration : ComplexTypeConfiguration<Address>
{
    public AddressConfiguration()
    {

        //props
        this.Property(t => t.Street)
            .IsOptional()
            .HasColumnName("AddressStreet")
            .HasMaxLength(1024);

        this.Property(t => t.PostalCode)
            .IsOptional()
            .HasColumnName("AddressPostalCode")
            .HasMaxLength(64);

        this.Property(t => t.City)
            .IsOptional()
            .HasColumnName("AddressCity")
            .HasMaxLength(512);
    }
}

推荐答案

（问题的自动回答部分转换为真实答案）

(Auto-answered part in the question converted to a real answer)

如果在同一CF模型中使用了多个复杂类型类实例，则在CF模型中设置这些类的配置像这样的级别：

If multiple complex type class instances are used in same CF Model, configuration of these classes is set at CF Model level like this:

public class ContactConfiguration : EntityTypeConfiguration<Contact>
{
    public ContactConfiguration()
    {

        //props for PersonalAddress instance of Address complex type class
        this.Property(t => t.PersonalAddress.Address.Street)
            .HasColumnName("PersonalAddressStreet");

        this.Property(t => t.PersonalAddress.Address.PostalCode)
            .HasColumnName("PersonalAddressPostalCode");

        this.Property(t => t.PersonalAddress.Address.City)
            .HasColumnName("PersonalAddressCity");


        //props for BusinessAddress instance of Address complex type class
        this.Property(t => t.BusinessAddress.Address.Street)
            .HasColumnName("BusinessAddressStreet");

        this.Property(t => t.BusinessAddress.Address.PostalCode)
            .HasColumnName("BusinessAddressPostalCode");

        this.Property(t => t.BusinessAddress.Address.City)
            .HasColumnName("BusinessAddressCity");
    }
}

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