C# FluentNHibernate:使用鉴别器映射子集合
使用嵌套集合查看对象不会引发错误,但在尝试保存实体时出错C# FluentNHibernate:使用鉴别器映射子集合,c#,fluent-nhibernate,mapping,discriminator,C#,Fluent Nhibernate,Mapping,Discriminator,使用嵌套集合查看对象不会引发错误,但在尝试保存实体时出错 [IndexOutOfRangeException: Invalid index 15 for SqlParameterCollection with Count=15.] System.Data.SqlClient.SqlParameterCollection.RangeCheck(Int32 index) +5343807 System.Data.SqlClient.SqlParameterCollection.G
[IndexOutOfRangeException: Invalid index 15 for SqlParameterCollection with Count=15.]
System.Data.SqlClient.SqlParameterCollection.RangeCheck(Int32 index) +5343807
System.Data.SqlClient.SqlParameterCollection.GetParameter(Int32 index) +19
System.Data.Common.DbParameterCollection.System.Collections.IList.get_Item(Int32 index) +10
NHibernate.Type.Int64Type.Set(IDbCommand rs, Object value, Int32 index) +60
NHibernate.Type.NullableType.NullSafeSet(IDbCommand cmd, Object value, Int32 index) +414
NHibernate.Type.NullableType.NullSafeSet(IDbCommand st, Object value, Int32 index, Boolean[] settable, ISessionImplementor session) +62
NHibernate.Type.ManyToOneType.NullSafeSet(IDbCommand st, Object value, Int32 index, Boolean[] settable, ISessionImplementor session) +122
NHibernate.Persister.Entity.AbstractEntityPersister.Dehydrate(Object id, Object[] fields, Object rowId, Boolean[] includeProperty, Boolean[][] includeColumns, Int32 table, IDbCommand statement, ISessionImplementor session, Int32 index) +344
[PropertyValueException: Error dehydrating property value for PravUprav.Classes.Entities.ClaimCaseInstanceFI.Decision]
NHibernate.Persister.Entity.AbstractEntityPersister.Dehydrate(Object id, Object[] fields, Object rowId, Boolean[] includeProperty, Boolean[][] includeColumns, Int32 table, IDbCommand statement, ISessionImplementor session, Int32 index) +503
NHibernate.Persister.Entity.AbstractEntityPersister.Update(Object id, Object[] fields, Object[] oldFields, Object rowId, Boolean[] includeProperty, Int32 j, Object oldVersion, Object obj, SqlCommandInfo sql, ISessionImplementor session) +2013
NHibernate.Persister.Entity.AbstractEntityPersister.UpdateOrInsert(Object id, Object[] fields, Object[] oldFields, Object rowId, Boolean[] includeProperty, Int32 j, Object oldVersion, Object obj, SqlCommandInfo sql, ISessionImplementor session) +335
NHibernate.Persister.Entity.AbstractEntityPersister.Update(Object id, Object[] fields, Int32[] dirtyFields, Boolean hasDirtyCollection, Object[] oldFields, Object oldVersion, Object obj, Object rowId, ISessionImplementor session) +1898
NHibernate.Action.EntityUpdateAction.Execute() +737
NHibernate.Engine.ActionQueue.Execute(IExecutable executable) +39
NHibernate.Engine.ActionQueue.ExecuteActions(IList list) +128
NHibernate.Engine.ActionQueue.ExecuteActions() +48
NHibernate.Event.Default.AbstractFlushingEventListener.PerformExecutions(IEventSource session) +241
NHibernate.Event.Default.DefaultFlushEventListener.OnFlush(FlushEvent event) +179
NHibernate.Impl.SessionImpl.Flush() +295
NHibernate.Transaction.AdoTransaction.Commit() +189
Spring.Data.NHibernate.HibernateTransactionManager.DoCommit(DefaultTransactionStatus status) in c:\_prj\spring-net\src\Spring\Spring.Data.NHibernate\Data\NHibernate\HibernateTransactionManager.cs:561
[DataIntegrityViolationException: Error dehydrating property value for PravUprav.Classes.Entities.ClaimCaseInstanceFI.Decision]
Spring.Data.NHibernate.HibernateTransactionManager.DoCommit(DefaultTransactionStatus status) in c:\_prj\spring-net\src\Spring\Spring.Data.NHibernate\Data\NHibernate\HibernateTransactionManager.cs:577
错误:
Error dehydrating property value for
表示我映射了属性两次或实体属性的数据类型不正确,但我检查了代码,没有发现错误
具有集合的实体:
public class ClaimCase
{
private IList<ClaimCaseInstance> _claimCaseInstances;
public virtual IList<ClaimCaseInstance> ClaimCaseInstances
{
get { return _claimCaseInstances ?? (_claimCaseInstances = new List<ClaimCaseInstance>()); }
set { _claimCaseInstances = value; }
}
}
儿童班:
public class ClaimCaseInstanceFI : ClaimCaseInstance
{
public virtual DicList Decision { get; set; }
}
public class ClaimCaseInstanceAI : ClaimCaseInstance
{
}
映射:
public sealed class ClaimCaseInstanceMap : ClassMap<ClaimCaseInstance>
{
public ClaimCaseInstanceMap()
{
Table("ClaimCaseInstances");
Id(x => x.Id);
DiscriminateSubClassesOnColumn("InstanceType");
References(x => x.ClaimCase);
References(x => x.Result);
}
}
public sealed class ClaimCaseInstanceFIMap : SubclassMap<ClaimCaseInstanceFI>
{
public ClaimCaseInstanceFIMap()
{
DiscriminatorValue((int)CourtTypes.Firts);
References(x => x.Decision);
}
}
public sealed class ClaimCaseInstanceAIMap : SubclassMap<ClaimCaseInstanceAI>
{
public ClaimCaseInstanceAIMap()
{
DiscriminatorValue((int)CourtTypes.Appeals);
}
}
DicList
按约定引用映射ForeignKeyConversion
asinstance.Property.Name+“ID”
,工作正常
仅当编辑字段后保存索赔
时才会发生错误决策
[IndexOutOfRangeException: Invalid index 15 for SqlParameterCollection with Count=15.]
看起来生成的SQL请求有问题。
您能显示这种情况下的SQL语句吗?批处理命令:
命令0:
批处理命令:
命令0:UPDATE ClaimCase SET CreatedDate=@p0,IsHidden=@p1,InnerNumber=@p2,OdpNumber=@p3,DocumentsDeliveryDate=@p4,CourtPostDate=@p5,IncomingClaimDate=@p6,Disputed Description=@p7,LawsuitNumber=@p8,TotalPriceResult=@p9,Note=@p10,CourtSector=@p11,CaseClosed=@p12,Isbreaked=@p13,Bankrupdate=@p14,CreatedBy=@p15,CaseCategoryID=@p16,ClaimDirection=@p17,ForeignCuratorID=@p18,InnerContractCuratorID=@p19,DisputeID=@p20,CourtID=@p21,CourtDistrictionId=@p22,市政合同Id=@p23,属于部门Id=@p24,其中Id=@p25@p0=06.05.2014 9:59:56[类型:日期时间(0)],@p1=False[类型:布尔值(0)],@p2='БС-7/2014'[类型:字符串(4000)],@p3='5345345'[类型:字符串(4000)],@p4=15.05.2014 0:00:00[类型:日期时间(0)],@p5=17.05.2014 0:00:00[类型:日期时间(0)],@p6=08.05.2014 0:00:00[类型:日期时间(0),@p7='[Type:String(4000)],@p8='534534'[Type:String(4000)],@p9=100,00[Type:Decimal(0)],@p10=NULL[Type:String(4000)],@p11=NULL[Type:String(4000)],@p12=False[Type:Boolean(0)],@p13=False[Type:Boolean(0)],@p14=NULL[Type:DateTime(0)],@p15=7026[Type:Int64(0)],@p16=23[Type:Int64(0],@p17=28[类型:Int64(0)],@p18=7026[类型:Int64(0)],@p19=19[类型:Int64(0)],@p20=14[类型:Int64(0)],@p21=35[类型:Int64(0)],@p22=86[类型:Int64(0)],@p23=2[类型:Int64(0)],@p24=2027[类型:Int64(0)],@p25=12347[类型:Int64(0)]
接下来:
Could not synchronize database state with session
NHibernate.PropertyValueException: Error dehydrating property value for PravUprav.Classes.Entities.ClaimCaseInstanceFI.Decision ---> System.IndexOutOfRangeException: Недопустимый индекс 16 для SqlParameterCollection с Count=16.
我已经找出了问题的根源。 使用伟大的工具(感谢@SergSW的提示)作为和 我发现sql语句中更新字段的计数不等于count
entityMetamodel.PropertySpan
数组entityMetamodel.Properties
中的某些字段出现了两次
public sealed class ClaimCaseInstanceMap : ClassMap<ClaimCaseInstance>
{
public ClaimCaseInstanceMap()
{
Table("ClaimCaseInstances");
DiscriminateSubClassesOnColumn("InstanceType");
Id(x => x.Id);
References(x => x.ClaimCase);
Map(x => x.FilingDate);
References(x => x.Result);
Map(x => x.PriceResult);
Map(x => x.ExpenseResult);
Map(x => x.Comment);
}
}
公共密封类ClaimCaseInstanceMap:ClassMap
{
公共索赔案例实例地图()
{
表(“索赔案例”);
辨别子类子列(“实例类型”);
Id(x=>x.Id);
参考文献(x=>x.ClaimCase);
地图(x=>x.FilingDate);
参考文献(x=>x.Result);
Map(x=>x.PriceResult);
Map(x=>x.ExpenseResult);
Map(x=>x.Comment);
}
}
子类:
public sealed class ClaimCaseInstanceFIMap : SubclassMap<ClaimCaseInstanceFI>
{
public ClaimCaseInstanceFIMap()
{
DiscriminatorValue((int)CourtType.Firts);
Id(x => x.Id);
Map(x => x.Price);
Map(x => x.Expense);
References(x => x.Decision);
References(x => x.Determination);
Map(x => x.DeterminationDate);
Map(x => x.CourtDateAct);
Map(x => x.PriceResult);
Map(x => x.ExpenseResult);
Map(x => x.CounterClaimDate);
Map(x => x.Comment);
}
}
公共密封类ClaimCaseInstanceFIMap:子类映射
{
公共索赔案例实例FIMAP()
{
鉴别器值((int)CourtType.Firts);
Id(x=>x.Id);
地图(x=>x.Price);
Map(x=>x.Expense);
参考文献(x=>x.Decision);
参考文献(x=>x.测定);
Map(x=>x.DeterminationDate);
Map(x=>x.CourtDateAct);
Map(x=>x.PriceResult);
Map(x=>x.ExpenseResult);
地图(x=>x.date);
Map(x=>x.Comment);
}
}
如您所见,此属性:注释
,费用结果
,价格结果
我没有描述问题中所有字段的映射,这是我的错误,对此表示抱歉,感谢您的帮助
NHibernate.Persister.Entity.AbstractEntityPersister.Dehydrate()
entityMetamodel.PropertySpan
public sealed class ClaimCaseInstanceMap : ClassMap<ClaimCaseInstance>
{
public ClaimCaseInstanceMap()
{
Table("ClaimCaseInstances");
DiscriminateSubClassesOnColumn("InstanceType");
Id(x => x.Id);
References(x => x.ClaimCase);
Map(x => x.FilingDate);
References(x => x.Result);
Map(x => x.PriceResult);
Map(x => x.ExpenseResult);
Map(x => x.Comment);
}
}
public sealed class ClaimCaseInstanceFIMap : SubclassMap<ClaimCaseInstanceFI>
{
public ClaimCaseInstanceFIMap()
{
DiscriminatorValue((int)CourtType.Firts);
Id(x => x.Id);
Map(x => x.Price);
Map(x => x.Expense);
References(x => x.Decision);
References(x => x.Determination);
Map(x => x.DeterminationDate);
Map(x => x.CourtDateAct);
Map(x => x.PriceResult);
Map(x => x.ExpenseResult);
Map(x => x.CounterClaimDate);
Map(x => x.Comment);
}
}