Re: NSPredicate: To be, or not to be

FROM : Gerriet M. Denkmann
DATE : Mon Jun 02 18:08:10 2008

On 2 Jun 2008, at 16:52, <email_removed> wrote:
>
> On Sun, Jun 1, 2008 at 9:10 PM, Gerriet M. Denkmann
> <<email_removed>> wrote:

>> Following your suggestion, I changed my predicateFormat to:
>> @"%@ contains kMDItemTextContent" which translates into:
>> <kMDItemTextContent IN "To be, or not to be"> and behaves more or 
>> less
>> exactly like LIKE.
>>
>> So again: how to search kMDItemTextContent for a string containing 
>> spaces?
>> (10.4.11).

>
> This came up in the last question you asked. You're not constructing
> your formats properly.
>
> [NSPredicate predicateWithFormat:@"%K contains %@",
> kMDItemTextContent, @"To be, or not to be"]


Constucting the format properly (copying your suggestion):
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"%K 
contains %@", kMDItemTextContent, @"To be, or not to be"];

results in:
[...] Exception raised during posting of notification.  Ignored. 
exception: NSComparisonPredicate with left expression which is not 
NSKeyPathExpressionType given to NSMetadataQuery ("To be, or not to 
be" IN kMDItemTextContent)

So: what am I doing wrong?

Kind regards

Gerriet.