On Feb 17, 2010, at 2:14 PM, Gustavo Pizano wrote: > > On Feb 17, 2010, at 11:03 PM, Jim Correia wrote: > >> On Feb 17, 2010, at 4:41 PM, Gustavo Pizano wrote: >> >>> Maybe I misunderstood I must conform NSCopying protocol also even when >>> using core data? >> >> If you have an NSCell subclass which adds iVars, you must implement >> -copyWithZone: to do correct memory management. >> >> Your -copyWithZone: needs to work correctly within the bounds of the object >> ownership rules. >> >> If you have an object iVar which shouldn’t be copied, but is still an owned >> reference, then you can (and must) retain it instead in the copy. >> >> (You should do this for all cells with iVars, not just ones with object >> iVars, so that your subclass will behave correctly in the future even if >> NSCell doesn’t implement its behavior using NSCopyObject.) >> >> - Jim > > Hello Jim > HMM digging more into the problem.. definitely it seems because Im not > copying properly the NSManagedObject Paul Robinson says in one old post: > > "The short answer is that you need to override the setObjectValue: method > (which tries to copy your uncopyable NSManagedObject) in your custom NSCell > to convert your NSManagedObject into an NSValue (which is copyable)." > > > And taking what you said, so if my User ManagedObject returns me the > NSDictionary with the key-value of its attributes, then in the cell I must > set it as an ivar within the method setObjectValue, then implement the > copyWithZone and return the copy of it isn't it? right now I don't have any > ivar in my custom cell.. sooo . := :S.
I think Jim and I are leading you off track; if your cell has no extra ivars, then you don't have to worry about the cell implementing copyWithZone:. I still think you should read my blog posting and see why the crash happens with zombies on. corbin_______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
