我试图弄清楚这个问题相当长的时间。我有一个黑客的方式来使它工作。Fluent Nhibernate复合键映射
我只想知道这是否可能在流利NHibernate映射。
说我有例如两个表:
Table ComissionLevel
{
Year,
ComissionLevelID,
... other properties ....
}
primary key (Year,ComissionLevelID)
Table ClientCommission
{
Year,
ClientID,
CommissionLevelID_1,
CommissionLevelID_2,
... other properties ...
}
primary key (Year,ClientID)
foreign key CommissionLevel1 (Year,CommissionLevelID_1)
foreign key CommissionLevel2 (Year,CommissionLevelID_2)
目前我映射如下:现在
public ComissionLevelMap()
{
Schema("XXXX");
Table("ComissionLevel");
LazyLoad();
CompositeId()
.KeyProperty(x => x.Year, set => {
set.ColumnName("Year");
set.Access.Property(); })
.KeyProperty(x => x.CommissionLevelID, set => {
set.ColumnName("CommissionLevelID");
set.Length(10);
set.Access.Property(); });
HasMany<ClientCommission>(x => x.ClientCommissions)
.Access.Property()
.AsSet()
.Cascade.AllDeleteOrphan()
.LazyLoad()
.Inverse()
.Generic()
.KeyColumns.Add("Year", mapping => mapping.Name("Year")
.SqlType("NUMBER")
.Nullable())
.KeyColumns.Add("CommissionLevelID_1", mapping => mapping.Name("CommissionLevelID_1")
.SqlType("VARCHAR2")
.Nullable()
.Length(10));
HasMany<ClientCommission>(x => x.ClientCommission2s)
.Access.Property()
.AsSet()
.Cascade.AllDeleteOrphan()
.LazyLoad()
.Inverse()
.Generic()
.KeyColumns.Add("Year", mapping => mapping.Name("Year")
.SqlType("NUMBER")
.Nullable())
.KeyColumns.Add("CommissionLevelID_2", mapping => mapping.Name("CommissionLevelID_2")
.SqlType("VARCHAR2")
.Nullable()
.Length(10));
}
public ClientCommissionMap()
{
Schema("XXXXX");
Table("ClientCommission");
LazyLoad();
CompositeId()
.KeyProperty(x => x.ClientID, set => {
set.ColumnName("ClientID");
set.Length(10);
set.Access.Property(); })
.KeyProperty(x => x.Year, set => {
set.ColumnName("Year");
set.Access.Property(); });
References(x => x.ComissionLevel1)
.Class<ComissionLevel>()
.Access.Property()
.Cascade.None()
.LazyLoad()
.Insert()
.Update()
.Columns("Year", "CommissionLevelID_1");
References(x => x.ComissionLevel2)
.Class<ComissionLevel>()
.Access.Property()
.Cascade.None()
.LazyLoad()
.Insert()
.Update()
.Columns("Year", "CommissionLevelID_2");
}
我的问题是,每当我创建一个CommissionLevel并分配ClientCommission其收集,如果我通过call session.save(CommissionLevel)将它们保存起来,它会引起我的异常
<Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index>.
这里我的问题是:
NHibernate会自动保存关系吗?像:
ClientCommission commission = new ClientCommission{Year = 2012, ClientID =SomeGuid}; CommissionLevel newCommissionLevel = new CommissionLevel{Year = 2012, CommissionLevelID =NewCommissionLevelGuid}; newCommissionLevel.ClientCommission1s.Add(commission); newCommissionLevel.ClientCommission2s.Add(commission); CommissionLevelRepo.Save(newCommissionLevel);
当我打电话CommissionLevelRepo.Save(newCommissionLevel),NHibernate的应该也会更新ClientCommission.ComissionLevel1而ClientCommission.ComissionLevel2
还是我不得不说
ClientCommission.ComissionLevel1 = newCommissionLevel;
ClientCommission.ComissionLevel2 = newCommissionLevel;
- 对于我得到的异常,这是因为NHibernate不会生成正确的列,它似乎会生成th ree年份专栏。因为如果我手动创建两个名为ComissionLevelID1和CommissionLevelID2的属性,请禁用ClientCommission上的.Insert()和.Update()它将正确保存它。
有人能告诉我映射这两个类的正确方法吗?
非常感谢。
只是一个想法。如果你正在介绍所有这些复杂性。你可能做错了什么。简化您的映射和设计。你以后不会再维护它。 – DarthVader