Did you ever find a solution? I find myself desiring the same thing.
I tried what *jwdavidson* said -- use a PostCollectionUpdateEventListener
-- but it didn't work for me.
On Tuesday, October 19, 2010 5:38:13 AM UTC-4, RobB wrote:
>
> I'm implementing automatic auditing on an app I'm working on and I'm
> having a problem getting the PostUpdateEvent listener to fire when I
> change a property which is mapped as a HasManyToMany.
>
> Below is my map. If a change is made to any of the properties other
> than "AdministersUnit" the PostUpdateEvent Listener is fired on the
> update.
> If I change more than one property and AdministersUnit the postupdate
> still doesn't pickup that AdministersUnit has changed. I've just
> tried it with a PreUpdate event listener and the same behaviour is
> there.
> NH is generating a table between the two entities to handle the many
> to many relationship and it's changes to this table that aren't being
> picked up on. Has anyone seen this problem, do they have a
> workaround?
>
>
> public class UserMap : ClassMap<User>
> {
> public UserMap()
> {
> Id(x => x.Id);
> Map(x => x.UserName).Not.Nullable().Length(50);
> Map(x => x.Name).Length(100);
> Map(x => x.Email).Length(100);
> References(x => x.Unit).Nullable();
> Map(x => x.IsAdmin).Default("'false'");
> Map(x => x.WarningMessagesOn).Default("'true'");
> HasManyToMany(x => x.AdministersUnit).LazyLoad();
> }
> }
>
> Cheers
>
> Rob
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