流利NHibernate：如何映射兩個非鍵列

Question

我將如何能夠映射另一個對象與兩列不是鍵？

public class Car 
{ 
    public virtual int Id { get; set; } 
    public virtual int AccountId { get; set; } 
} 

public class UserAccount 
{ 
    public virtual int Id { get; set; } 
    public virtual int UserId{ get; set; } 
    public virtual int AccountId { get; set; } 
} 

public class User 
{ 
    public virtual int Id { get; set; } 
    public virtual int Name { get; set; } 
} 

比方說，我想要獲得所有與User.Name爲「喬」的汽車。我將如何映射/查詢這些與流利的nhibernate？

public Car() 
    { 
     Table("Car"); 
     Id(x => x.Id).Column("ID").GeneratedBy.Native(); 
     Map(x => x.AccountId); 
     References(x => x.Account); // ?? needs to map accountid with the Account.Id... 
    } 

Answer 1

如果你想映射引用，你需要的是類型，而不是密鑰。

public class Car 
{ 
    public virtual int Id { get; set; } 
    public virtual UserAccount Account { get; set; } 
} 

那麼你將這樣

public Car() 
{ 
    Table("Car"); 
    Id(x => x.Id).Column("ID").GeneratedBy.Native(); 
    References(x => x.Account, "AccountId"); 
}