Hi Austin > I've got a Core Data project and I have a window controlled by an > NSWindowController that is used to add or edit an NSManagedObject. I wanted > to create a separate Managed Object Context in the NSWindowController so that > the changes made to the object aren't seen by the UI below and so I can just > throw away the changes if the user clicks "Cancel". If the user clicks > "Save' I wanted to merge the changes from the temporary MOC to the main MOC > being used by the rest of the application. > > What is the best way to merge those changes back to the main MOC? Do I have > to recreate the object in the main MOC as is done in this example: > http://www.timisted.net/blog/archive/multiple-managed-object-contexts-with-core-data? > Or, can I use - (void)refreshObject:(NSManagedObject *)object > mergeChanges:(BOOL)flag to merge the changes? If i use > refreshObject:mergeChanges, can I pass it my NSManagedObject from the > temporary MOC and do I need to call save: on the temporary MOC before doing > that?
I have created a basic tutorial that demonstrates both adding and editing and object. AFAICT, you need to take two different approaches. The tutorial is available at http://www.richplum.co.uk/magazine/dg201001.pdf Joanna -- Joanna Carter Carter Consulting _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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 arch...@mail-archive.com
