The "nested transaction" error is an error you'll get exclusively
in the event of a mistake with threads.
We strongly discourage people from sharing managed objects or
managed object contexts between threads.
Thank you very much for your very, very detailed response.
Can I summarize with "if I use several thread, I should use one
NSManagedObjectContext per thread" ?
But in this case, how can I set a background thread to regularly save
the context ?
Moreover I did not understand which mechanism will prevent these
managedObjectContexts to clash when accessing the same persistent store.
Regards,
Pierre Chatelier
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