Dear NHUsers,
I read your Gabriel Schenker's soft deletes article (http://
www.nhforge.org/blogs/nhibernate/archive/2008/09/06/soft-deletes.aspx)
with great interest and it was very useful! I have a similar but
slightly different requirement which I'm having some trouble
implementing, and I wonder if you're able to offer some advice?
I need to actually do a physical delete from a table, but to update
the “ModifiedDate” and “ModifiedBy” fields on the object BEFORE
deletion. The reason I need to do this is that I have a trigger that
will fire on deletions, and copy the row to a history table. I’d like
the row in the history table to reference the actual deletion time and
have the name of the person who deleted it.
At the moment, the code I have is as follows, although I have tried
various different options.
protected override void
DeleteEntity(NHibernate.Event.IEventSource session, object entity,
NHibernate.Engine.EntityEntry entityEntry, bool
isCascadeDeleteEnabled,
NHibernate.Persister.Entity.IEntityPersister persister,
Iesi.Collections.ISet transientEntities)
{
IAuditable auditable = entity as IAuditable;
if (auditable != null)
{
auditable.ModifiedDate = DateTime.Now;
auditable.ModifiedBy = "mark";
CascadeBeforeDelete(session, persister, auditable,
entityEntry, transientEntities);
base.DeleteEntity(session, auditable, entityEntry,
isCascadeDeleteEnabled, persister, transientEntities);
CascadeAfterDelete(session, persister, auditable,
transientEntities);
}
else
{
base.DeleteEntity(session, entity, entityEntry,
isCascadeDeleteEnabled, persister, transientEntities);
}
}
The code above simply deletes the row, without propagating the update
first. I’ve also tried doing a session.Update(...) before the
CascadeBeforeDelete to no avail.
I wonder if you could offer any suggestions! I’m quite new to
NHibernate, but appreciate its power and convenience :-)
Kindest regards,
Mark
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