A string is a string - the user's input will have the ratioValue property available.
Up to you to sanity check the user input of course. Kirk Kerekes (iPhone) On May 30, 2014, at 4:56 PM, Trygve Inda <cocoa...@xericdesign.com> wrote: >> 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
