I have an entity authors and another entity books where there is a one-to-many relationship of authors to books. Accordingly, I represent the books as an NSSet in a relationship to authors. If I want to delete or add books for an author, is Core Data smart enough for me just to alter the nsset of books for the author? Or do I need to specifically delete or add the book in the books entity?
In other words, is the following sufficient to change books for an author?
NSSet *bookSet = _author.books;
NSMutableSet *mutableBookSet = [NSMutableSet setWithSet:bookSet];
[mutableBookSet removeObject:bookToRemove];
newBookSet = mutableBookSet;
_author.books = newBookSet;
or do I need to remove the book from the books entity?
Thanks for any suggestions.
