Sorting NSSets of a core data entity - Objective-c

Question

I would like to sort the data of a core data NSSet (I know we can do it only with arrays but let me explain...). I have an entity user who has a relationship to-many with th

Answer 1

If you want them to be in the same order, then you need to sort them before extracting the values. Example:

NSArray * sortedRecipes = [user.recipes sortedArrayUsingDescriptors:arrayOfSortDescriptors];
NSArray * identities = [sortedRecipes valueForKey:@"identity"];
NSArray * names = [sortedRecipes valueForKey:@"name"];

EDIT

My apologies. I just realized this is an iPhone question, and NSSet doesn't have sortedArrayUsingDescriptors: on the iPhone. However, it's trivial to work around:

NSArray * recipes = [user.recipes allObjects];
NSArray * sortedRecipes = [recipes sortedArrayUsingDescriptors:arrayOfSortDescriptors];
....