Re: Core Data: How to Observe "dirty" State?

FROM : Keary Suska
DATE : Sun May 11 17:33:04 2008

on 5/10/08 7:54 PM, <email_removed> purportedly said:

> On May 10, 2008, at 12:03 PM, Dave Fernandes wrote:
>

>> You can also register for the
>> NSManagedObjectContextObjectsDidChangeNotification to get a
>> notification when anything in the MOC changes. Presumable you can
>> then check [moc hasChanges], but I've never used that method.

>
> I would also expect that you can observe your NSManagedObjectContext's
> "hasChanges" property using KVO.


That's what I tried first, which wasn't working, before I read the docs
further:

"This property is not key-value observing compliant (see Key-Value Observing
Programming Guide)‹if you are using Cocoa bindings, you cannot bind to the
hasChanges property of a managed object context."

That would have been perfect. Maybe I will submit an enhancement radar to
get this value KVO compliant.

The notification will actually work well for my purposes. That option should
have been obvious but I guess this is my d'oh! du jour.

Thanks,

Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"