How embarrassing. I relied on the description in the documentation I found, and
didn't go deeper.
Sorry.
— F
On 10 Aug 2012, at 12:44 PM, Ken Thomases <k...@codeweavers.com> wrote:
> On Aug 10, 2012, at 12:28 PM, Fritz Anderson wrote:
>
>> They are not alternatives, and the conversion to NSNumber is not optional.
>> You have to do all three.
>
> What? There's no requirement that one use NSNumbers. And BETWEEN is a nice
> clear operator to use, but it would be fine to do "%f < value && value < %f".
> In fact, the docs for BETWEEN state that it's equivalent to that sort of
> thing (except using <= instead of <, which the OP should consider which he
> wants).
>
> A perfectly suitable solution is:
>
> - (NSPredicate*) minMaxPredicate
> {
> return [NSPredicate predicateWithFormat:@"%f < value && value < %f",
> self.minimumValue, self.maximumValue];
> }
>
> + (NSSet *) keyPathsForValuesAffectingMinMaxPredicate
> {
> return [NSSet setWithObjects:@"minimumValue", @"maximumValue", nil];
> }
>
> Regards,
> Ken
>
>
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