On 2009 May 22, at 13:54, Ben Trumbull wrote:
Uhm, No. %@ is the vararg specifier for an NSObject. -
stringWithFormat: turns that into a string. Because -
stringWithFormat: turns everything into a string. Kinda the point.
-predicateWithFormat: does NOT call -description randomly.
Predicates are trees of first class objects, like an AST for a
query. It does not turn objects into their textual representation
before comparison.
Ah, I'd forgotten that and incorrectly jumped to that conclusion when
I saw that my data was being sent -UTF8String.
Result: It worked fine with the XML store (Why??). But when I switch
to the SQLite store, it crashes when Core Data sends a -UTF8String
message to the data object -- because it's expecting a damned
description string. Took me several hours before I finally read
Ben's
post very carefully and figured out why it was doing that.
This bug was fixed in 10.5.7
Indeed, I was using 10.5.6 and coincidentally just updated this
afternoon. THANKS for the info -- that would have REALLY confused me
had I seen that it had suddenly fixed itself.
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