Hi
After a few looong days and a lot of searching I thought I'd try to
get some help here.
On a few of our entities we need to perform an audit and log the dirty/
changed fields in a separate table.
I've seen that some people here have asked the same question, but no
answer seem to work.
What I need to do is to add a new row to the table with the following
info:
entity id,
event type
property name
old value
new value
user
Please note that this is not the regular audit info that Ayende
blogged about, where you insert ModifiedBy, ModifiedDate etc.
Almost everything works perfectly. I'm able to retrieve the dirty
values, create the audit entity, but the problem is in the saving of
those entities.
I'm using IPreUpdateEventListener and have also tried
IPostUpdateEventListener, but to no avail. Session does not save the
new entities at all, and throws no exception.
The code I'm trying is as follows:
public bool OnPreUpdate(PreUpdateEvent updateEvent )
{
var entity = updateEvent.Entity as ApprovedClaim;
if (entity == null)
return false;
var session = updateEvent.Session;
var history = new EntityHistory
(entity.Id,EventType.Update, "propname", "2", "3", null);
session.Save(history);
return false;
}
If I can't get it to work I seriously have to consider using DB
triggers, but I'd rather use NH's capabilities.
Anybody have a clue on what's going on here?
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