流利的API生产重复列

问题描述：

我们正试图让我们用流利的API配置，而不是数据的注释干净的数据模型来重新配置我们的EF项目。我们有现有的表格，现在我正试图验证我的努力。流利的API生产重复列

这里是旧的（部分）EF模型声明：

[Table("CustomerLocation")] 
internal class CustomerLocationEF 
{ 
    [Column(Order = 0), Key] 
    public int CustomerID { get; set; } 

    [Column(Order = 1), Key] 
    [Required] 
    [MaxLength(ModelConstants.MaxLength128)] 
    [Index("IX_Customer_LocationReference", IsUnique = true)] 
    public string LocationReference { get; set; } 

    public virtual CustomerEF Customer { get; set; } 
} 
[Table("Customer")] 
internal class CustomerEF 
{ 
    [Key] 
    public int CustomerID { get; set; } 

    public virtual ICollection<CustomerLocationEF> Locations { get; set; } 
}

这些做工精细，并产生预期的架构。但是，这里有新的车型和配置：

public class CustomerLocationModel 
{ 
    public int CustomerId { get; set; } 

    public string LocationReference { get; set; } 

    public virtual CustomerModel Customer { get; set; } 
} 
public class CustomerModel 
{ 
    public int Id { get; set; } 

    public virtual ICollection<CustomerLocationModel> Locations { get; set; } 
} 

internal sealed class CustomerLocationTypeConfiguration : EntityTypeConfiguration<CustomerLocationModel> 
{ 
    public CustomerLocationTypeConfiguration() 
    { 
     ToTable("CustomerLocation"); 

     HasKey(x => new {x.CustomerId, x.LocationReference}); 

     Property(x => x.CustomerId) 
      .HasColumnName("CustomerID"); 

     HasRequired(x => x.Customer).WithMany().WillCascadeOnDelete(false); 
    } 
}

然而，这种尝试生成像这样的表：

CreateTable(
     "dbo.CustomerLocation", 
     c => new 
      { 
       CustomerID = c.Int(nullable: false), 
       LocationReference = c.String(nullable: false, maxLength: 128), 
       CustomerModel_Id = c.Int(), 
      }) 
     .PrimaryKey(t => new { t.CustomerID, t.LocationReference }) 
     .ForeignKey("dbo.Customer", t => t.CustomerID) 
     .ForeignKey("dbo.Customer", t => t.CustomerModel_Id) 
     .Index(t => new { t.CustomerID, t.LocationReference }, unique: true, name: "IX_Customer_LocationReference") 
     .Index(t => t.CustomerModel_Id);

注意重复的列CustomerModel_Id和外键关联。我碰到这样的问题，用数据说明之前，用[ForeignKey]解决他们，但我是新来的流畅API和不确定我做错了这里。我如何在Fluent中解决这个问题，以便正确地获取我的导航属性/外键？

答

原来的问题是在映射配置为CustomerModel，有一次我清理，高达，我的问题就走了：

HasMany(x => x.Locations) 
       .WithRequired(x => x.Customer) 
       .HasForeignKey(x => x.CustomerId);

流利的API生产重复列

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