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some operators don't work with NSMetadataQuery?
John C. Daub
Mon Apr 27 12:12:14 2009
I'm working with NSRuleEditor, which utilizes NSPredicate, which ultimately
gets fed to an NSMetadataQuery.
I create my predicate (by returning parts from NSRuleEditor's
method), and in some cases there's failure to accept the predicate. I'm
trying to figure out why.
The GUI is trying to specify "name matches/contains/begins/ends/is" <value>
When I use "matches", the -description of the NSPredicate is:
kMDItemDisplayName MATCHES "foo"
and when I [myNSMetadataQuery setPredicate:myPredicate] it generates the
NSMatchesPredicateOperatorType NSComparisonPredicate not allowed to
NSMetadataQuery (kMDItemDisplayName MATCHES "fred").
If I try "contains", the predicate is:
kMDItemDisplayName CONTAINS "foo"
and I get an error of:
Unknown type of NSComparisonPredicate given to NSMetadataQuery
(kMDItmeDisplayName CONTAINS "fred")
"Is", "begins with", and "ends with" all work out fine.
What am I doing wrong?
John C. Daub }:-)>=
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