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我正在輪詢安全信息的多個系統（域），所以我正在處理domainUsers及其角色。我有我的實體設置如下所示，但我無法在AutoMapper覆蓋中設置domainUser.HasMany關係。如何覆蓋複合標識的自動映射，與流暢的nhibernate一對多關係？
你會注意到我沒有domainUser.DomainUserId和role.RoleId這使得這更簡單（沒有compositeIds。）我已經避免了這些字段，因爲我已經有了一個自然的組合鍵，它當我從下游域中獲取這些數據時將會填充。如果我添加這些人造鍵，那麼在調用session.Merge（domainUser）之前，我必須預先獲取它們的值。我試圖避免這樣做。
實體對象是顯而易見的（我希望），但這裏是我得到的。
public class DomainUser
{
public virtual int Domain_Id { get; set; }
public virtual string DomainUserLogin { get; set; }
public virtual string EmployeeId { get; set; }
// extra field removed for breviety
public DomainUser()
{
this.Roles = new List<DomainUserRole>();
}
public virtual void AddRole(DomainUserRole role)
{
role.DomainUser = this;
this.Roles.Add(role);
}
// overrides for equals and getHashCode
}
和
public class DomainUserRole
{
public virtual DomainUser DomainUser { get; set; }
public virtual string DataSegment { get; set; } // Some group of data a user has access to, like US or China
public virtual string RoleName { get; set; }
public virtual string RoleDescription { get; set; }
// extra field removed for breviety
// overrides for equals and getHashCode
}
我的數據庫架構是非常簡單的。
alt text http://lh6.ggpht.com/_MV6QGBD11JE/S3iX2qcP_jI/AAAAAAAAEE0/PGIO07BlCSo/s800/Untitled.gif.jpg
我已經得到了IAutoMappingOverride類開始是這樣的。但是，我不知道如何爲角色設置hasMany。它一直給我
NHibernate.FKUnmatchingColumnsException:
Foreign key (FK20531BE4163641BB:tblDomainUserRoles [DomainUser]))
must have same number of columns as the referenced primary key
(tblDomainUsers [Domain_Id, DomainUserLogin]).
如何設置外鍵使用這兩個字段？
public class DomainUserMap : IAutoMappingOverride<DomainUser>
{
public void Override(AutoMapping<DomainUser> mapping)
{
mapping.CompositeId()
.KeyProperty(user => user.Domain_Id, "Domain_Id")
.KeyProperty(user => user.DomainUserLogin, "DomainUserLogin");
// I"ve tried this.
// mapping.HasMany(x => x.Roles)
// .KeyColumns.Add("Domain_Id")
// .KeyColumns.Add("DomainUserLogin");
// also tried this where I define this FK in DB with both fields.
// mapping.HasMany(x => x.Roles)
// .ForeignKeyConstraintName("FK_tblDomainUserRoles_tblDomainUsers")
}
}
public class DomainUserRoleMap : IAutoMappingOverride<DomainUserRole>
{
public void Override(AutoMapping<DomainUserRole> mapping)
{
mapping.CompositeId()
.KeyReference(role => role.DomainUser)
.KeyProperty(role => role.DataSegment)
.KeyProperty(role => role.RoleName);
}
}