Re: Core Data Entity Relationship -valueForKeyPath: question
Re: Core Data Entity Relationship -valueForKeyPath: question
- Subject: Re: Core Data Entity Relationship -valueForKeyPath: question
- From: Quincey Morris <email@hidden>
- Date: Mon, 30 Jun 2008 19:42:36 -0700
On Jun 30, 2008, at 19:01, Jamie Phelps wrote:
I have a Core Data entity Item with a relationship
"transaction." (It's actually a to-many relationship. I'll adjust
the key when I migrate my Core Data model.) My question is about
KVC. Can anyone help me understand why the following code always
returns YES? I know for a fact that some of my Item objects should
return NO for this.
-(BOOL)sold{
return ([self valueForKeyPath:@"transaction.@count"] > 0);
}
It's not a KVC issue. You called a method that returns a pointer, then
you compared the pointer to 0 (nil). That's not what you meant to do.
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