Looked like a bug to me.

Tuna Toksöz
Eternal sunshine of the open source mind.

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On Fri, Jul 31, 2009 at 2:41 PM, Saijado <[email protected]> wrote:

>
> I have this class-structure:
>
> class Parent{
>     long Id{get;set;}
>     string Name{get;set;}
> }
>
> with this mapping:
>
> <class name="Parent" >
>        <id name="Id"unsaved-value="0">
>                <generator class="native" />
>        </id>
>        <property name="Name"/>
>        <bag name="Children" access="none">
>                <key column="ParentId" />
>                <one-to-many class="Child" />
>        </bag>
> </class>
>
> I'm trying to get some Parents with a criteria:
>
> ISession session = sessionFactory.OpenSession();
> IList<Parent> parents;
> using(session.BeginTransaction()) {
>        parents = session.CreateCriteria(typeof(Parent))
>                .CreateCriteria("Children")
>                .Add(Expression.Eq("Name", name))
>                .SetResultTransformer(Transformers.DistinctRootEntity )
>                .List<Parent>();
>        session.Transaction.Commit();
> }
>
> On Commit() an exception occours because NHibernate tries to update
> the ParentId of the child with null. I've tried to use cascade="none"
> but without any efect. If I have a private field with a List of
> children in Parent there is no Problem.
>
> Why is Nhibernate doing this?
> >
>

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