Hi John,

On 2014-03-04, 4:14 AM, "John Pollard" wrote:

Chuck,

Ok, will put a trap in the setXXX method and see if that catches it if it 
happens again.

I am not quite clear on what you mean about checking relationships (plural) to 
this entity in the model.
My base object is Transaction
My to-one related object is Organisation

Is there a to-many from Organization to Transaction?


This relationship does have a Delete Rule of Nullify. I understood this to mean 
that if the related Organisation is deleted, we will be left pointing to null. 
That could explain it, though I am certain that the related object was never 
deleted.

Could something else have cascade deleted it?



I have in any case set it to Deny instead, which I take to mean disallow the 
deletion of the related object while I am pointing at it.

Yes.



With Nullify delete rules, would the setXXX get called, but the validateXXX not 
called?

I am not certain.  If EOF is removing and nulling relationships during 
saveChanges(), it may not call the validateXXX methods.  Honestly, I forget.


Chuck



Thanks
John

On 27 Feb 2014, at 16:56, Chuck Hill 
<[email protected]<mailto:[email protected]>> wrote:

Try the set… method then.  Also check the relationships to this entity in the 
model.  Is one set to Nullify?  It could be EOF doing this as part of a save.

Chuck

On 2/27/2014, 5:43 AM, "John Pollard" wrote:

Hi List,

I am trying to pin down where a to-one relationship is getting set to null 
inappropriately.

I added validateMyRelationship() to trap and throw and this is triggered ok 
when the base object is created / updated.

However, it wasn't called when the relationship was set to null and hence the 
update proceeded, bypassing my trap.

Does the above scenario ring any bells; why isn't validateMyRelationship() 
called when I can see the update request to the database follows.

I can't set the relationship to mandatory as in some circumstances null is 
valid, though it should never change to null after it has been set.

Thanks
John



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