Maybe you need to specify the type in the index tag?

Also, the table attribute on the map-element isn't used with one-to-many.

An alternative to using one-to-many may be composite-element, if this is the
only place where the ClientAccountTypeHistoryItem is mapped.

/Oskar



2009/3/17 epitka <[email protected]>

>
> Ok, I tried and I am getting error about no type specified
>
>  NHibernate.MappingException: No type name specified
>   at NHibernate.Mapping.SimpleValue.get_Type()
>   at NHibernate.Cfg.XmlHbmBinding.CollectionBinder.BindMapSecondPass
> (XmlNode node, Map model, IDictionary`2 persistentClasses)
>   at
>
> NHibernate.Cfg.XmlHbmBinding.CollectionBinder.<>c__DisplayClass4.<AddMapSecondPass>b__3
> (IDictionary`2 persistentClasses)
>   at NHibernate.Cfg.Configuration.SecondPassCompile()
>   at NHibernate.Cfg.Configuration.BuildSessionFactory()
>
>
> here is how I tried to map it in Client
>
>  <map name="AccountTypeHistory" access="nosetter.camelcase-underscore"
> table="ClientAcctType">
>      <key column="ClientId"/>
>      <index column="EffDt"/>
>      <one-to-many
> class="SR.Domain.Client.Values.ClientAccountTypeHistoryItem,
> SR.Domain"/>
>    </map>
>
> here is the history item mapping
>
>  <class name="SR.Domain.Client.Values.ClientAccountTypeHistoryItem,
> SR.Domain"
>         table="ClientAcctType" lazy="true" >
>  <composite-id
> class="SR.Domain.Client.Values.ClientAccountTypeCompositeID,
> SR.Domain"
>                  name="Id" access="nosetter.lowercase-underscore">
>      <key-property name="ClientID"  column="ClientId" type="Int32"/>
>      <key-property name="EffectiveDate"  column="EffDt"
> type="DateTime" />
>    </composite-id>
>  </class>
>
> On Mar 17, 8:53 am, Oskar Berggren <[email protected]> wrote:
> > Have you tried using a <map>? With <key column="ClientId"/> and <index
> > column="EffDt"/>.
> >
> > /Oskar
> >
> > 2009/3/17 epitka <[email protected]>
> >
> >
> >
> > > I don't like them either, but I am stuck with legacy db. If it was  me
> > > I would not event map it in a class as it is purely for reporting and
> > > does not belong in domain at all. But higher powers want it mapped as
> > > history field. So I tried all possible ways to map this and cannot get
> > > it done. I've googled for two days, nothing. If I had any hair left I
> > > would pull it out.
> >
> > > On Mar 17, 8:40 am, Fabio Maulo <[email protected]> wrote:
> > > > as you can see many people don't like composite POID.
> >
> > > > 2009/3/17 epitka <[email protected]>
> >
> > > > > Anybody???
> >
> > > > > On Mar 16, 2:56 pm, epitka <[email protected]> wrote:
> > > > > > Ok I'll try to explain this little bit better. Basically I have
> two
> > > > > > tables (Client), that has surrogate PK key "ClientID" and Client
> has
> > > > > > natural key composed of ClientID and EffectiveDate.
> > > > > > How do I map a collection in Client that has all items for
> ClientID.
> >
> > > > > > On Mar 16, 11:54 am, epitka <[email protected]> wrote:
> >
> > > > > > > Hi, I am trying to map a collection (bag) or items that have
> > > composite
> > > > > > > id. The mapping I have throws an error saying that
> >
> > > > > > >  NHibernate.FKUnmatchingColumnsException: Foreign key
> > > > > > > (FK6A7D859A4C8DCC7F:ClientAcctType [ClientId, EffectiveDate]))
> must
> > > > > > > have same number of columns as the referenced primary key
> (Client
> > > > > > > [ClientId])
> >
> > > > > > > I have a Client and ClientAcctType tables where ClientAcctType
> is
> > > > > > > basically a history table. So I want to map this history for
> > > specific
> > > > > > > Client. I created a ClientAccountTypeCompositeID class and
> mapped
> > > the
> > > > > > > history item like this
> >
> > > > > > > ClientAcctountTypeHistoryItem:
> > > > > > >  <composite-id class="ClientAccountTypeCompositeID"
> > > > > > >                   name="Id" access="lowercase-underscore">
> > > > > > >       <key-property name="ClientID" access="property"
> > > > > > > column="ClientId"/>
> > > > > > >       <key-property name="EffectiveDate" access="property"
> > > > > > > column="EffDt" />
> > > > > > >     </composite-id>
> >
> > > > > > > Client:
> > > > > > > <bag name="AccountTypeHistory" lazy="true">
> > > > > > >       <key>
> > > > > > >         <!-- a collection inherits the composite key type -->
> > > > > > >         <column name="ClientId"/>
> > > > > > >         <column name="EffectiveDate"/>
> > > > > > >       </key>
> > > > > > >       <one-to-many class="ClientAccountTypeHistoryItem"/>
> > > > > > >     </bag>
> >
> > > > > > > This should be pretty straight forward. Where I am going wrong?
> >
> > > > --
> > > > Fabio Maulo
> >
>

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