nspredicate

I would like to query CloudKit using OR with two fields. But I can't find a way how to do this. What I did is: NSPredicate *predicate1 = [NSPredicate predicateWithFormat:@"(creatorUserRecordID == %@)", userId]; NSPredicate *predicate2 = [NSPredicate predicateWithFormat:@"(toUser == %@)", userId]; NSCompoundPredicate *compPredicate = [NSCompoundPredicate orPredicateWithSubpredicates:@[predicate1, predicate2]]; CKQuery *query = [[CKQuery alloc] initWithRecordType:@"Message" predicate:compPredicate]; But unfortunately CKQuery does not support OR query (as written in documentation) Can I achieve

I want a simple predicate that returns me all the groups which have mode = 0 and the mode of the enrollments in the group = 0 To be precise i need a predicate to access the nested object properties. Somehow a predicate like: [NSPredicate predicateWithFormat:@"mode = 0 AND enrollments.Enrollment.mode = 0"] the above predicate is wrong and obviously doesn't work. EDITED: I have given a go to the following predicate too but been unsuccessful. [NSPredicate predicateWithFormat:@"mode = 0 AND ALL ( SUBQUERY(enrollments,$varEnrollment,$varEnrollment.mode = 0))"] I need result which contains all

As the title states, I want my extension to show up when the users share *.wav files I've come across the following apple documentation: https://developer.apple.com/library/ios/documentation/General/Conceptual/ExtensibilityPG/ExtensionScenarios.html#//apple_ref/doc/uid/TP40014214-CH21-SW8 I'm trying to figure out how to actually use what is mentioned in the documentation to do so. The documentation leaves me with the feeling I have most if not all the pieces I need, but not how they go together. I understand that I'll most probably have to build a "SUBQUERY(..)" statement, but where does it go

I have been scouring Apple's Predicate Programming Guide and SO as well, trying to determine the correct way to write a predicate for a certain fetch request. It seems like the way I am attempting to use dot notation to traverse a relationship is not being respected by the request. NSEntityDescription *entity = [NSEntityDescription entityForName:@"Task" inManagedObjectContext:context]; [fetchRequest setEntity:entity]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"project.user == %@", self.user]; [fetchRequest setPredicate:predicate]; User, Project, and Task are all core data