Core Data 続きの話題

この辺は まだ触ってない

• sortDescriptors
• Predicates

何も指定しない

swift

@FetchRequest(sortDescriptors: [], predicate: nil, animation: .default) private var listOfBooks: FetchedResults<Books>

SortDescription 指定

swift

@FetchRequest(sortDescriptors: [SortDescriptor(\Books.title, order: .forward)], predicate: nil, animation: .default) var listOfBooks: FetchedResults<Books>

Predicate 指定

swift

@FetchRequest(sortDescriptors: [], predicate: NSPredicate(format: "year = 1983")) var listOfBooks: FetchedResults<Books>