I created a data structure based on a dictionary of words. The purpose is to link each word to all other words made up of the same letters plus one. Example: table -> ablate, cablet, tabled, gablet, albeit, albite, etc. For this I built a data model made of three entities: Word, Draw, Link. A Draw is a set of letters corresponding to a Word and sorted in alphabetic order, like : HOUSE -> EHOSU. A Link is a letter that you add to a Draw to get another Draw. So my data model looks like this: And here is how I implemented it in Xcode: Entity Word (let's forget the attribute optComp that plays no role here) Entity Draw Entity Link I am populating the data in two steps: first I read a list of words from a .txt source and I populate the Word entity and at the same time the Draw entity with the corresponding relationship (function loadDic()) This first step apparently works fine. I can easily find all anagrams of any word with something like word.sort.word.spelling I read through the Draw entity. For each draw I seek all existing +1 draws considering each letter of the alphabet. If there are, I create a Link and add the relationships (function createLinks()) Here is where something goes wrong. If the Link's and the relationship Draw.plus seem to be correctly created, the other relationship Link.gives is only partially populated, say 50%. Moreover, I tried to apply an additional routine (updateLinks()) , focusing only on Link's with an empty Link.gives relationship and updating them. But again, only 50% of the nil relationships appear to be populated. I could not find out why those relationships are not properly populated. If someone can help me out I would be grateful. Here is the code: LoadDic() function (OK) : func loadDic() { print("Loading dictionary...") dataAlreadyLoaded.toggle() guard let url = Bundle.main.url(forResource: INPUT_FILE, withExtension: "txt") else { fatalError("\(INPUT_FILE).txt not found") } if let dico = try? String(contentsOf: url, encoding: String.Encoding.utf8 ) { let lines = dico.split(separator: "\r\n") for line in lines { let lineArray = line.split(separator: " ") print("\(lineArray[0])") // word let wordSorted = String(lineArray[0].sorted()) let draw = getDraw(drawLetters: wordSorted) ?? addDraw(drawLetters: wordSorted) // look if draw already exists, otherwise create new one. let wordItem = Word(context: viewContext) // create word entry with to-one-relationship to draw wordItem.spelling = String(lineArray[0]) wordItem.optComp = (Int(String(lineArray[1])) == 1) wordItem.sort = draw do { try viewContext.save() } catch { print("Errort saving ods9: \(error)") } } } print("Ods Chargé") } func addDraw(drawLetters: String) -> Draw { let newDraw = Draw(context: viewContext) newDraw.draw = drawLetters return(newDraw) } func getDraw(drawLetters: String) -> Draw? { let request: NSFetchRequest<Draw> = Draw.fetchRequest() request.entity = Draw.entity() request.predicate = NSPredicate(format: "draw == %@", drawLetters) do { let drw = try viewContext.fetch(request) return drw.isEmpty ? nil : drw[0] } catch { print("Erreur recherche Tirage") return nil } } createLinks() function (NOK): func createLinks() { var erreur = " fetch request <Draw>" let request: NSFetchRequest<Draw> = Draw.fetchRequest() request.entity = Draw.entity() request.predicate = NSPredicate(value: true) print("Building relationships...") do { let draws = try viewContext.fetch(request) count = draws.count for draw in draws { print("\(count) - \(draw.draw!)") linkTable.removeAll() for letter in ALPHABET { print(letter) let drawLettersPlus = String((draw.draw! + String(letter)).sorted()) // draw with one more letter if let drawPlus = draws.first(where: { $0.draw == drawLettersPlus }) { // look for Draw entity that matches augmented draw let linkItem = Link(context: viewContext) // if found, create new link based on letter with relationship to augmented draw linkItem.letter = String(letter) linkItem.gives = drawPlus erreur = " saving \(draw.draw!) + \(letter)" try viewContext.save() linkTable.append(linkItem) // saves link to populate the one-to-many relationship of the initial draw, once the alphabet is through } } let drawUpdate = draw as NSManagedObject // populate the one-to-many relationship of the initial draw let linkSet = Set(linkTable) as NSSet drawUpdate.setValue(linkSet, forKey: "plus") erreur = " saving \(draw.draw!) links plus" try viewContext.save() count -= 1 // next draw } } catch { print("Error " + erreur) } print("Graph completed") } updateLinks function (NOK): func updateLinks() { var erreur = "fetch request <Link>" let request: NSFetchRequest<Link> = Link.fetchRequest() request.entity = Link.entity() print("Running patch...") do { request.predicate = NSPredicate(format: "gives == nil") let links = try viewContext.fetch(request) for link in links { let baseDraw = link.back!.draw! print("\(baseDraw) \(link.letter!)") let augmDrawLetters = String((baseDraw + link.letter!).sorted()) if let augmDraw = getDraw(drawLetters: augmDrawLetters) { viewContext.perform { let updateLink = link as NSManagedObject updateLink.setValue(augmDraw, forKey: "gives") erreur = " saving \(augmDraw.draw!) \(link.letter!)" do { try viewContext.save() } catch { print("Erreur mise à jour lien") } } } } } catch { print("Error " + erreur) } } RESULT And this is the output showing the content of the Draw entity with relationships after createLinks() is applied: And here after updateLinks() is applied :

Hi, I've been trying for an hour to turn the symbols in sf symbols from left to right to right to left, I'd appreciate some help

Hi, When using just one model container, I have the following code: let modelContainer: ModelContainer init() { do { entriesModel = try ModelContainer(for: Model.self) } catch { fatalError("Could not initialize ModelContainer") } } I am attempting to implement two like so: let model1: ModelContainer let model2: ModelContainer init() { do { model1 = try ModelContainer(for: Model1.self) model2 = try ModelContainer(for: Model2.self) } catch { fatalError("Could not initialize ModelContainer") } } var body: some Scene { WindowGroup { ContentView() .modelContainer(model1) .modelContainer(model2) } } However, when in the Views that I'd like to implement I don't know how to declare the models. I tried this: @Environment(\.model1) private var model1 @Query private var data: [Model1] But I get the error: Cannot infer key path type from context; consider explicitly specifying a root type How do I implement multiple model containers in multiple different views?

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i accidentally updated my iphone with the ios 18 and i dislike it. the emoji display were too huge and the picture gallery was kinda messy. i hope apple could fix this by bringing back the old emoji display and the gallery settings.

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Is it possible to modify or mark elements in the room plan model generated by the framework?

Dear Apple Innovation Team, I have a game-changing iPhone concept and want Apple to explore it first. 📱 iPhone 18 – The First True Portless iPhone No ports – MagSafe 2.0 with high-speed data transfer. Under-display Face ID &amp; Camera – No security compromise. Seamless OLED Display – No interruptions, just pure screen. 📂 iPhone 20 – The Perfect Foldable Crease-free foldable design – Apple perfects what others failed to. Optimized iOS for foldables – Smooth UI &amp; app integration. Apple leads the foldable market. 🚀 Why This Matters: Apple can set a new standard &amp; dominate both innovations. Looking forward to your response. Best, Saksham Sethi

I have a problem that my widgets don't display well on Apple Watch Ultra when it is in the Night Mode. I would like to be able to detect this state so that I can provide a better view for this. Thank you.

Hello, Im new to Xcode, ive been taking some classes and watching YouTube videos as well as using AI. Im having an issue I cannot find a video on, and AI just keeps screwing up my layout and sizing. Here is the issue, I have a Custom Made Image for my Sign In button, for my log in page on Xcode. The issue being that I can barely see the button and when I go to adjust the size the whole layout gets screwed up. My Logo Image (supposed to take up the top 50% of the screen) takes over the whole Botton of the screen and I loose my username and password Text threads and images. I guess my question is, is this an issue with the size of image ive uploaded or is this an issue with my code? I changed the size of the Image I created in Canva to 900pixles for the width and 300pixals for the height and that did absolutely nothing to my image in Xcode. Below is the Button and Create Account section in my code that seems to be having issues. Ppppplease help me. var body: some View { NavigationStack(path: $navigationPath) { ZStack { // Background image Image("Background1") .resizable() .scaledToFill() .ignoresSafeArea() .clipped() // Main content ScrollView { VStack(spacing: 20) { // Logo Image("DynastyStatDropLogo") .resizable() .scaledToFit() .padding(.top, -160) .padding(.bottom, -30) // Form elements // Username field ZStack { Image("UsernameBar") .resizable() .aspectRatio(contentMode: .fill) .padding() TextField("UserName:", text: $textInput) .padding(.horizontal, 75) .background(Color.clear) .foregroundColor(.red) .focused($focus, equals: .username) .submitLabel(.next) .onSubmit { focus = .password } } .frame(height: 50) .clipShape(RoundedRectangle(cornerRadius: 10)) .padding(.horizontal) // Password field and Forgot Password link VStack(spacing: 20) { ZStack { Image("PasswordBar") .resizable() .aspectRatio(contentMode: .fill) .padding() SecureField("Password:", text: $textInput2) .padding(.horizontal, 75) .background(Color.clear) .foregroundColor(.red) .focused($focus, equals: .password) .submitLabel(.go) .onSubmit { submitForm() } } .frame(height: 50) .clipShape(RoundedRectangle(cornerRadius: 10)) .padding(.horizontal) // Forgot Password link (right-aligned) HStack { Spacer() Text("Forgot Password?") .foregroundColor(.blue) .onTapGesture { navigationPath.append("passwordRecovery") } } .padding(.horizontal, 90) } Spacer(minLength: -110) // SignIn Button - Explicitly showing it HStack { Spacer() Button { submitForm() } label: { Image("signinButton") .resizable() .frame(width: 500, height: 400) } Spacer() } Spacer(minLength: -300) // Create Account (centered) HStack { Spacer() Text("Create Account") .foregroundColor(.blue) .onTapGesture { navigationPath.append("accountCreation") } Spacer() } .padding(.bottom, -10) } } } .onAppear { focus = .username } .navigationDestination(for: String.self) { destination in switch destination { case "dashboard": DSDDashboard() case "passwordRecovery": PasswordRecoveryView() case "accountCreation": AccountCreationView() default: EmptyView() } } .alert(isPresented: $showAlert) { Alert( title: Text("Missing Information"), message: Text("Enter UserName and Password to continue to DSD"), dismissButton: .default(Text("OK")) ) } } } // Function to handle form submission func submitForm() { focus = nil if textInput.isEmpty || textInput2.isEmpty { showAlert = true } else { print("Login with username: \(textInput), password: \(textInput2)") navigationPath.append("dashboard") } } // Enum to manage focus states enum FormFieldFocus: Hashable { case username, password } }

Bonjour, Je me permet d'écrire un message car je rencontre un souci avec la vue canvas j'ai le message d'erreur suivant " CrashReportError: XCPreviewAgent crashed because Adjust.framework is missing" je ne sais pas trop comment identifié le problème j'utilise pod En vous remerciant par avance

Is there a way to revert back to the old designs? The new designs in iOS 18 are so bad and hard to use. I can’t imagine anyone actively tested this for user feedback before releasing.

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I noticed a discrepancy between the Material specifications for tvOS on the Developer page and the naming in the Design Resources (Sketch files). Which one should we consider authoritative? https://developer.apple.com/design/human-interface-guidelines/materials

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Scenario is when keyboard is opened within the app being developed then switch to other app, for instance, Notes app and create a note to enable keyboard from there. While the Notes app keyboard is active switch back to the developed app the keyboard in it is dismissed. Any thoughts?Thanks

I would like to modify the content of a published LocationNode upon been clicked by the user. But unfortunately: func hitTest(_ point: CGPoint, options: [SCNHitTestOption : Any]? = nil) -> [SCNHitTestResult] returns an SCNNode array from which it is impossible to retrieve the original LocationNode being inserted in order to be able to modify it. Of course the solution would be to either insert the SCNNode corresponding to the inserted LocationNode in a custom class or conversely insert the identifier of the custom object as a tag of the LocationNode, in order to solve the issue. But both options seem impossible to implement. May anyone help me?