Correct.  I got rid of that flattened attribute and things work as expected 
now.  The cascade delete no longer happens.


On Oct 7, 2010, at 3:29 AM, Timo Hoepfner wrote:

> Hi Ricardo,
> 
> you mean Message.mimeType is a flattened attribute to 
> Message.mimeContent.mimeType? An this is causing the unwanted cascade delete?
> 
> Sounds scary...
> 
> Timo
> 
> Am 06.10.2010 um 18:20 schrieb Ricardo J. Parada:
> 
>> 
>> 
>> Thanks Chuck... You lead me to the problem.
>> 
>> My Message entity has a mimeType property derived from mimeContent.mimeType. 
>>  So it seems that is the reason why EOF is deleting the mimeContent to-one 
>> when I delete the parent Message.
>> 
>> 
>> On Oct 5, 2010, at 8:26 PM, Chuck Hill wrote:
>> 
>>> Is there another relationship with Owns Destination or Cascade Delete set 
>>> on it.  Those are the only things that I can think of that would make EOF 
>>> delete an EO.  Could it be happening in your code?
>>> 
>>> 
>>> Chuck
>>> 
>>> On Oct 5, 2010, at 4:22 PM, Ricardo J. Parada wrote:
>>> 
>>>> Hi,
>>>> 
>>>> When I remove a child from a many-to-many relationship in the parent and 
>>>> delete the child I see EOF deletes the child in the database and  the 
>>>> corresponding record in the join table.  That's great.  However, the child 
>>>> object has a to-one called mimeContent and I'm also seeing a delete for 
>>>> the destination object:
>>>> 
>>>> DELETE FROM MIME_CONTENT WHERE MIME_CONTENT_ID = ?" withBindings: 
>>>> 1:26954(NeededByEOF0)
>>>> 1 row(s) deleted
>>>> 
>>>> I'm trying to figure out why this record is being deleted.  I already 
>>>> checked the "Own Destination" for the mimeContent to-one and it's not set. 
>>>>  The "Delete Rule" is set to "No Action".   So I don't quite understand 
>>>> why it's getting deleted.  I don't want it to be deleted.
>>>> 
>>>> Any ideas?
>>>> 
>>>> Thanks,
>>>> Ricardo
>>> 
>>> 
>>> -- 
>>> Chuck Hill             Senior Consultant / VP Development
>>> 
>>> Practical WebObjects - for developers who want to increase their overall 
>>> knowledge of WebObjects or who are trying to solve specific problems.
>>> http://www.global-village.net/products/practical_webobjects
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>> 
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