Nhibernate S#arp体系结构中的一对一映射
我头上有一股明显的烧坏电路的气味,所以请原谅我的无知 我试图在S#arp架构中建立一对一的关系(好吧,让Automapper来做) 我有Nhibernate S#arp体系结构中的一对一映射,nhibernate,fluent-nhibernate,s#arp-architecture,automapping,Nhibernate,Fluent Nhibernate,S#arp Architecture,Automapping,我头上有一股明显的烧坏电路的气味,所以请原谅我的无知 我试图在S#arp架构中建立一对一的关系(好吧,让Automapper来做) 我有 public class User : Entity { public virtual Profile Profile { get; set; } public virtual Basket Basket { get; set; } public virtual IList<Order> Orders { get; set;
public class User : Entity
{
public virtual Profile Profile { get; set; }
public virtual Basket Basket { get; set; }
public virtual IList<Order> Orders { get; set; }
public virtual IList<Role> Roles { get; set; }
...
}
public class Basket : Entity
{
public virtual User User { get; set; }
...
}
public class Profile : Entity
{
public virtual User User { get; set; }
...
}
在MappingIntegrationTests中运行单元测试CanConfigDatabaseMatchesMappings时,出现以下错误
NHibernate.ADOException:无法
执行查询。。。
System.Data.SqlClient.SqlException:
列名“ProfileFk”无效。
列名“BasketFk”无效
它试图执行的sql是
SELECT TOP 0
this_.Id AS Id6_1_ ,
..
user2_.ProfileFk AS ProfileFk9_0_ ,
user2_.BasketFk AS BasketFk9_0_
FROM
Profiles this_
LEFT OUTER JOIN Users user2_
ON this_.UserFk = user2_.Id
所以它在用户表中查找ProfileFk和BasketFk字段。
我没有设置任何客户覆盖映射,就我所见,我遵循了S#中设置的默认约定
IList订单和角色的另外两个映射似乎映射得很好。所以我猜它错过了建立一对一关系的机会
我错过了什么 明白了。这确实是一个使用流畅的NHibernate语法来解决的NHibernate问题,但它恰好与S#有关 背景资料:及 您要做的是覆盖用户的映射,并为其提供两个.HasOne映射。然后在Profile和Basket类上为用户设置唯一的引用:
public class UserMap : IAutoMappingOverride<User>
{
#region Implementation of IAutoMappingOverride<User>
/// <summary>
/// Alter the automapping for this type
/// </summary>
/// <param name="mapping">Automapping</param>
public void Override(AutoMapping<User> mapping)
{
mapping.HasOne(u => u.Profile);
mapping.HasOne(u => u.Basket);
}
#endregion
}
public class ProfileMap : IAutoMappingOverride<Profile>
{
#region Implementation of IAutoMappingOverride<Profile>
/// <summary>
/// Alter the automapping for this type
/// </summary>
/// <param name="mapping">Automapping</param>
public void Override(AutoMapping<Profile> mapping)
{
mapping.References(p => p.User).Unique().Column("UserFk");
}
#endregion
}
public class BasketMap : IAutoMappingOverride<Basket>
{
#region Implementation of IAutoMappingOverride<Basket>
/// <summary>
/// Alter the automapping for this type
/// </summary>
/// <param name="mapping">Automapping</param>
public void Override(AutoMapping<Basket> mapping)
{
mapping.References(b => b.User).Unique().Column("UserFk");
}
#endregion
}
public类UserMap:IAutoMappingOverride
{
#IAutoMappingOverride的区域实现
///
///更改此类型的自动映射
///
///自动映射
公共无效替代(自动映射)
{
mapping.HasOne(u=>u.Profile);
mapping.HasOne(u=>u.Basket);
}
#端区
}
公共类ProfileMap:IAutoMappingOverride
{
#IAutoMappingOverride的区域实现
///
///更改此类型的自动映射
///
///自动映射
公共无效替代(自动映射)
{
mapping.References(p=>p.User.Unique().Column(“UserFk”);
}
#端区
}
公共类BasketMap:IAutoMappingOverride
{
#IAutoMappingOverride的区域实现
///
///更改此类型的自动映射
///
///自动映射
公共无效替代(自动映射)
{
mapping.References(b=>b.User.Unique().Column(“UserFk”);
}
#端区
}
作为旁注,在撰写本文时,NHibernate 3刚刚发布。我刚买了一本很棒的书,它看起来对s#非常有用。。。。我觉得您甚至不需要.HasOne映射(因为实际上这些是多对一关系)
public class UserMap : IAutoMappingOverride<User>
{
#region Implementation of IAutoMappingOverride<User>
/// <summary>
/// Alter the automapping for this type
/// </summary>
/// <param name="mapping">Automapping</param>
public void Override(AutoMapping<User> mapping)
{
mapping.HasOne(u => u.Profile);
mapping.HasOne(u => u.Basket);
}
#endregion
}
public class ProfileMap : IAutoMappingOverride<Profile>
{
#region Implementation of IAutoMappingOverride<Profile>
/// <summary>
/// Alter the automapping for this type
/// </summary>
/// <param name="mapping">Automapping</param>
public void Override(AutoMapping<Profile> mapping)
{
mapping.References(p => p.User).Unique().Column("UserFk");
}
#endregion
}
public class BasketMap : IAutoMappingOverride<Basket>
{
#region Implementation of IAutoMappingOverride<Basket>
/// <summary>
/// Alter the automapping for this type
/// </summary>
/// <param name="mapping">Automapping</param>
public void Override(AutoMapping<Basket> mapping)
{
mapping.References(b => b.User).Unique().Column("UserFk");
}
#endregion
}