c# - 属性名称 'ProductId' 已定义

Question

我有一个实体，该实体使用 FK ProductId 建立关系，然后我使用复合键 ProductId 和 VehicleId 在同一实体上建立另一个关系。这是行不通的。我明白了

One or more validation errors were detected during model generation:

ProductId: Name: Each property name in a type must be unique. Property name 'ProductId' is already defined.

配置代码

public class BookingConfiguration : EntityTypeConfiguration<Booking>
    {
        public BookingConfiguration()
        {    
            ...

            HasRequired(b => b.Product)
                .WithMany(p => p.Bookings)
                .Map(m =>
                {
                    m.MapKey("ProductId");
                });

            HasRequired(b => b.Vehicle)
                .WithMany(v => v.Bookings)
                .Map(m =>
                {
                    m.MapKey("ProductId","VehicleId");
                });
        }
    }

Answer 1

Steve Greene 让我走上正轨，我将 ProductId 和 VehicleId 添加到实体并使用

HasRequired(b => b.Vehicle)
    .WithMany()
    .HasForeignKey(b => new {b.ProductId, b.VehicleId});

从域的角度来看，我不喜欢向实体添加外键，因此如果有人有更好的解决方案，请告诉我。