Swift Data 初略筆記

import SwiftData

@Model
class Trip {
    var name: String
    var destination: String
    var endDate: Date
    var startDate: Date

    var bucketList: [BucketListItem]? = []
    var livingAccommodation: LivingAccommodation?
}

- var name: String
+ @Attribute(.unique) var name: String

var body: some Scene {
    WindowGroup {
        ContentView()
    }
    .modelContainer(for: Trip.self)
}

@Environment(\.modelContext) private var modelContext

private func addItem() {
	let newItem = Trip(...)
    modelContext.insert(newItem)
}

private func deleteItems(offsets: IndexSet) {
	for index in offsets {
    	modelContext.delete(items[index])
    }
}