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Re: Using isMemberOfClass with a tree of subclass of NSManagedObject
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Re: Using isMemberOfClass with a tree of subclass of NSManagedObject

A part of code (this is a simply try code for a R&D):

@interface root :  NSManagedObject
@interface song :  root
@interface artist :  root
@interface modification :  NSManagedObject



-(void)dataBaseHaveChange:(NSNotification*)notification //I receive here the notification of a CoreData modification
{
NSNotification* userInfo = [[notification userInfo] retain];
NSSet* objectsSet = nil;

objectsSet = [userInfo valueForKey:NSInsertedObjectsKey];
for (NSManagedObject* modEntry in objectsSet) {
if ([modEntry isKindOfClass:[root class]]) {
//do something
}
}

	//The same things for modified and deleted object
}


The aim of that is to record changement in the data base, but the record is in data base too, and I don't want to catch the modification of kind "modification", the solution retained for do that it's do something only if the managed object is a subclass of root. But actually the condition is never verified...




Le 28 juin 08 à 19:30, Mike Abdullah a écrit :

Post some code.

Mike.

On 28 Jun 2008, at 18:25, Yoann GINI wrote:

Ho sorry, of cours it's isKindOfClass, I've this problem since 2 days and I've try all similar method by despair !

With isKindOfClass I've always a NO in return...

Le 28 juin 08 à 19:15, Owen Yamauchi a écrit :

On Sat, Jun 28, 2008 at 9:58 AM, Yoann GINI
<email@hidden> wrote:

    Do you have an idea ?


Use -isKindOfClass: instead. -isMemberOfClass: only tells you if an
object is an instance of that specific class. -isKindOfClass: includes
all superclasses as well.

Owen
[forgot to reply-all]


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References: 


 >Using isMemberOfClass with a tree of subclass of NSManagedObject (From: Yoann GINI <email@hidden>)


 >Re: Using isMemberOfClass with a tree of subclass of NSManagedObject (From: "Owen Yamauchi" <email@hidden>)


 >Re: Using isMemberOfClass with a tree of subclass of NSManagedObject (From: Yoann GINI <email@hidden>)


 >Re: Using isMemberOfClass with a tree of subclass of NSManagedObject (From: Mike Abdullah <email@hidden>)























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