Re: Getting notified of any change to a specific NSManagedObject?
Re: Getting notified of any change to a specific NSManagedObject?
- Subject: Re: Getting notified of any change to a specific NSManagedObject?
- From: Sean McBride <email@hidden>
- Date: Thu, 15 Nov 2012 19:32:53 -0500
- Organization: Rogue Research Inc.
On Thu, 15 Nov 2012 16:19:53 -0800, Rick Mann said:
>I know I can use KVO on a specific property of my NSManagedObject, but
>is there a way to get notified if any property changes? I'm trying to
>avoid a bunch of -addObserver:… and -removeObserer:… calls.
You could create a dependent key, that depends on all your keys of interest, then you just observe that one key. Like:
+ (NSSet*)keyPathsForValuesAffectingValueForKey:(NSString*)inKey
{
NSSet* set = [super keyPathsForValuesAffectingValueForKey:inKey];
if ([inKey isEqualToString:@"everything"])
{
set = [set setByAddingObjectsFromSet:[NSSet setWithObjects:
@"firstName",
@"lastName",
@"age",
nil]];
}
return set;
}
Cheers,
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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