Build an app with SwiftData

3:33 - Defining a SwiftData model

@Model
final class Card {
    var front: String
    var back: String
    var creationDate: Date

    init(front: String, back: String, creationDate: Date = .now) {
        self.front = front
        self.back = back
        self.creationDate = creationDate
    }
}

4:25 - Binding to a SwiftData model

@Bindable var card: Card

5:52 - Query models from SwiftData storage

@Query private var cards: [Card]

8:27 - Setting up a model container for the window group

WindowGroup {
    ContentView()
}
.modelContainer(for: Card.self)

9:24 - Providing a preview with sample data

#Preview {
    ContentView()
        .frame(minWidth: 500, minHeight: 500)
        .modelContainer(previewContainer)
}

10:30 - Accessing the model context of the ContentView

@Environment(\.modelContext) private var modelContext

10:51 - Insert a new model in the context

let newCard = Card(front: "Sample Front", back: "Sample Back")
modelContext.insert(object: newCard)

13:34 - Start document-based application setup

@main
struct SwiftDataFlashCardSample: App {
    var body: some Scene {
        #if os(iOS) || os(macOS)
        DocumentGroup(editing: Card.self, contentType: <#UTType#>) {
            <#code#>
        }
        #else
        WindowGroup {
            ContentView()
                .modelContainer(for: Card.self)
        }
        #endif
    }
}

16:51 - Finish document-based application setup

@main
struct SwiftDataFlashCardSample: App {
    var body: some Scene {
        #if os(iOS) || os(macOS)
        DocumentGroup(editing: Card.self, contentType: .flashCards) {
            ContentView()
        }
        #else
        WindowGroup {
            ContentView()
                .modelContainer(for: Card.self)
        }
        #endif
    }
}