Try setting inverse on the has many mapping and see if that helps

On Dec 29, 2009 11:54 AM, "kberridge" <kevin.w.berri...@gmail.com> wrote:

I have a simple parent child relationship where the parent class has a
collection of children, but the child class doesn't have a reference
to the parent.  I'm mapping it with a HasMany.

In my database, the foreign key column does not allow nulls, but when
NH tries to insert into these tables it is bombing out because it's
trying to insert the child first (with null in the FK col) and come
back and update the FK column after it inserts the parent.

I found an earlier message on this group that briefly discusses this
issue:
http://www.mail-archive.com/fluent-nhibernate@googlegroups.com/msg05124.html

Is the only way I can get around this problem still to add the
reference to the parent on the child class?

Thanks,
Kevin Berridge

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