Hi Florijan,
On Oct 10, 2006, at 9:03 AM, Florijan Stamenkovic wrote:
Hi all,
I am trying to find a way to detect changes eos just *after* they
happen. If possible the implementation should consider the Author
object changed, if one of his Books has been unassociated / deleted.
I tried with EOEditingContext notifications, but they are posted
only at save time. I also could not find anything to fit the
purpose in Project Wonder, yet.
There is something there, but I forget the name.
If nothing like that exists, I am thinking of implementing it
through a notification posting EOGenericRecord subclass. Any
comments or tips about this?
There is a discussion and implementation of what you want in
Practical WebObjects starting on page 67. You really need the help
of the EC.
One more question: EOs are not automatically removed from to-many
relationships after being deleted, even when their delete rule is
set to nullify. Is this another client side EOClassDescription bug,
or a standard behavior?
That is standard behavior. Delete rules are processed as part of the
preparation work done in saveChanges(). You can call
ec.processRecentChanges() to force this to happen earllier.
Chuck
--
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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