Op 15 okt 2012, om 02:05 heeft Koen van der Drift het volgende geschreven:
>
> On Oct 14, 2012, at 7:56 PM, Willeke <willeke2...@gmail.com> wrote:
>
>> the predicate should be something like
>> name IN {"Jones A.", "Williams S.", "Brown M.", "Tobias S."}
>>
>> what is persons in this statement?
>> [fetchRequest setPredicate: [NSPredicate predicateWithFormat: @"name IN %@",
>> persons]];
>
> 'persons' is an array of dictionaries, where one of the key-value pairs
> contains the name.
>
> - Koen.
It should be an array of strings:
[fetchRequest setPredicate: [NSPredicate predicateWithFormat: @"name IN %@",
[persons valueForKey:@"name"]]];
Willeke
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