On Oct 19, 2013, at 10:44 PM, Trygve Inda wrote: > I have an array of objects. These objects may have some dynamic properties > handled with valueForUndefinedKey. > > If I create a predicate along the lines of: > > myObject.proertyA = something AND > myObject.proertyB = somethingElse AND > myObject.dynamicPropertyA = someOtherThing > > > How can I look at myPredicate and determine that it uses dynamicPropertyA? > > Is it enough and safe to use [myPredicate predicateFormat] and then search > the resulting string for dynamicPropertyA? > > The reason is that my dynamic properties can be removed and I would need to > go and find all the NSPredicates that are using a property that is about to > go away.
You could but I imagine it would be fragile. You may be better off building your predicates manually--NSComparisonPredicate/NSExpression gives you the introspection that you need. HTH, Keary Suska Esoteritech, Inc. "Demystifying technology for your home or business" _______________________________________________ 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
