Question

I am trying to use Core Data and it’s ordered relationships feature, and I just can’t find how would I actually specify ordering. I marked my relationship as ‘ordered’, but don’t see where I set, say, ‘order by attribute XXX descending’.

Answer 1

An ordered relationship only means that ordered in a arbitrary manner. (Ordered by the user for example.)

If you want to have an order related to your attributes, add a sort descriptor to your fetch request :

NSSortDescriptor* sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES];
NSArray* sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil];
[fetchRequest setSortDescriptors:sortDescriptors];