This happens often enough that I need a real plan. I typically have parent objects with child objects that have attributes bound to different things in a GUI or possibly even unbound and simply modified by something else. The parent object needs to perform some type of action whenever one of the (possibly) many attributes of the child object changes, such as update a file containing the data the child represents.
I'm looking for a strategy to handle watching those changes. So far I've used a few odd solutions which generally stem from overriding setValue:forKey: (or each accessor explicitly depending on the situation) in the child. I've used that to trigger an single key (isModified) which the parent watches, post a notification, call a delegate method, and probably some others. None of which I like.
Suggestions? Maybe this will be covered in Erik's mystical Cocoa Patterns book :) Thanks, -- Seth Willits _______________________________________________ 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
