Re: filtering the values in an NSTableColumn
Re: filtering the values in an NSTableColumn
- Subject: Re: filtering the values in an NSTableColumn
- From: Fritz Anderson <email@hidden>
- Date: Fri, 10 Aug 2012 09:51:13 -0500
On 10 Aug 2012, at 7:48 AM, Koen van der Drift <email@hidden> wrote:
> On Fri, Aug 10, 2012 at 8:42 AM, Keary Suska <email@hidden> wrote:
>>
>
>> Where in the predicate formatting guide (https://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Predicates/predicates.html) does it show that your syntax is in any way valid?
>
> Well, it talks about using the greater than comparator in the Using
> Predicates section:
>
> NSDate *referenceDate = [NSDate dateWithTimeIntervalSince1970:0];
> NSPredicate *predicate = [NSPredicate predicateWithFormat:@"birthday >
> %@", referenceDate];
Notice two differences between the documented example and the predicate you propose:
- The format specification in the example is %@, not a scalar. ("%@ is a var arg substitution for an object value—often a string, number, or date.")
- The predicate in the documentation does not chain binary comparisons. The documentation doesn't show any operator precedence — even if legal, your proposal might be read as [[%f < value] < %f]. It _does_ show a "BETWEEN" operator.
— F
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