>>It might also be worth putting a test in awakeFromInsert -- first >>check if the object has been assigned to a persistent store, and only >>assign if it has not.>Done that; it doesn't get called more than once, and it >>doesn't help to do >the assignObject: toPersistentStore: outside the >>awakeFromInsert.> >Note that on systems with OS 10.5 (Leopard) it works fine, while on 10.4 >(Tiger)>it always gives the error... >>We'll try to set it up using >configurations in the data model. Any other suggestions?Okay, I've made a >minimal test project using configurations in the data model, so we no longer >need the assignObject: toPersistentStore: calls.The exception 'can't reassign >object to a different store once it has been saved' occurs on quitting the >application in the following case:- we have two managedObjectContexts, to be >able to have separate save actions.- in one store we have two entities having >a one-to-many relationship (say Person and Hobby).- in the second store we >have just a single entity.- there are object instances of all entities present >when we start the program.- we have added a new Person *and* we set the >relationship of two Hobbys to one Person.- we are running on Tiger (10.4), not >on 10.5 (this seems to matter).We are using standard interface for 'many >objects'; array controllers bound to the correspondingmanaged object >context.It turns out that the relationship is critical; with the relationship >set to 'No Value' there is no error; when it is set in a newly added object, >things go wrong. When running on Leopard, no problems...It seems that problems >only come when there is one object having a relation to two or more other >objects.So, the problem is now more accurately defined. I hope someone has an >idea how to tackle this one, as it prevents us in a nasty way from having >multiple separately savable stores.Thanks,Arthur C. _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/_______________________________________________
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