Hi, I have the following question:

I have a class "Persona" which has a collection of objects called "Direccion".

The thing is, when I create a Person object, then add the n Direccion objets, when I want that to be saved in the data base, I get the error that it cannot insert null in the PersonId field, in the Direccion table.

That's because the Person has just been inserted.
How do I have to tell nHibernate that that Direccion objects must be inserted with the PersonId that has just inserted?

Understand what I mean?

thanks!
Hope to be clear with the explanation.

Post your mappings please.

I discovered what I was doing wrong.
I wasn't setting the the Persona instance on the Direccion instance before doing the session.Save(_persona);
So, the direccion object, didn't know which PersonaId to use.

Thanks!