> Does anyone know if you can use this mechanism for dotted values, or does
> it have to be a value local to the object?
>
> For example, could you say that field "a" depends on "b.c"? I'm trying to
> do that but it doesn't seem to work or me.
Yes, you can. I'm doing it in at least one of my classes like so:
+ (NSSet *)keyPathsForValuesAffectingActualUnitPrice {
return [NSSet setWithObjects:@"unitPrice", @"transaction.unitPrice",
nil];
}
And the transaction property itself also has a dependency:
+ (NSSet *)keyPathsForValuesAffectingTransaction {
return [NSSet setWithObject:@"transactions"];
}
It all works perfectly here. What errors (if any) are you seeing? Make
sure that all of your data access to those dependent properties are
enclosed in willChange.../didChange... methods.
--
Ashley Clark
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