> Create a property-styled category on NSString that returns the numeric value > of a ratio-string -- call it "ratioValue" perhaps. Then you can have a > predicate format of the form: > > @"self.ratioValue > %@.ratioValue" > > -- or whatever. > > The same category would be useful in KVC collection operations. > > Kirk Kerekes > (iPhone)
As a followup: I can make the lefExpression keypath "aspectRatio.ratioValue" But how would I make what the User enters in the Predicate Editor text field pass through the ratioValue method? If I just change the leftExpression to "aspectRatio.ratioValue" that changes one side of the comparison, but what the user has entered is still a string like "4:3". _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
