So I cannot directly filter an array of dictionaries using a predicate? That
was the whole goal of my question, see my original post.
- Koen.
On Oct 15, 2012, at 6:33 AM, Willeke <willeke2...@gmail.com> wrote:
>
> 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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