You have to create an intemediatry entity in the middle
On Sun, Feb 8, 2009 at 4:42 AM, Duarte Nunes <[email protected]> wrote:
>
> Hi,
>
> I'm dealing with an exotic mapping I can't get straight, and would
> appreciate any help!
>
> Consider the types Entity, Key, OtherEntity. I'm trying to map the
> following scenario:
>
> class Entity {
> public IDictionary<Key, IList<OtherEntity>> Property { get; set; }
> }
>
> On the database, Entity, Key and OtherEntity each have a table, and a
> fourth one does the ternary association. I've been using the following
> mapping, but to no avail:
>
> <map name="Property" cascade="all" lazy="true"
> table="Entity_Key_OtherEntity">
> <key column="[Entity]" />
> <index-many-to-many column="[Key]" class=" Key" />
> <many-to-many column="[OtherEntity]" class=""OtherEntity"/>
> </map>
>
> When I try to update an instance of Entity, for some reason I get a
> System.Reflection.TargetException. Do you have any idea about what I'm
> missing?
>
> Thanks!
> -Duarte
>
> >
>
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