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解決できました。

2021/04/06 12:14

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@@ -1,248 +1,4 @@
 以下のモデルのリストにデータを追加したいのですが、できませんでした。
 **handleUploadTweet**関数で、Userのtweetsに追加したいのですが、Tweetクラスだけに保存されてしまい、Userクラスには保存されていないことに気付きました。
 インスタンスを作り、そのインスタンスのプロパティに追加した後、まとめてList型のプロパティに保存するしようとしたのですができません。
-なぜ保存されないのか理解できる方、どうかご教授お願いします。
+なぜ保存されないのか理解できる方、どうかご教授お願いします。
-### User
-```ここに言語を入力
-class User: Object {
-    @objc dynamic var id: Int = 0
-    @objc dynamic var username: String = ""
-    @objc dynamic var profileImage: Data? = nil
-    var tweets = List<Tweet>()
-    override static func primaryKey() -> String? {
-        return "id"
-    }
-}
-class Tweet: Object {
-    @objc dynamic var tweetId: Int = 0
-    @objc dynamic var caption: String = ""
-    let users = LinkingObjects(fromType: User.self, property: "tweets")
-    var replyTweet = List<ReplyTweet>()
-    override static func primaryKey() -> String? {
-        return "tweetId"
-    }
-}
-```
-### データを追加するクラス
-```ここに言語を入力
-import Foundation
-import UIKit
-import RealmSwift
-protocol CreateNewIDRepository {
-    func newId<T: Object>(model: T) -> Int?
-    func replyNewId<T: Object>(model: T) -> Int?
-}
-enum UploadTweetConfiguration {
-    case tweet
-    case reply(Tweet)
-}
-class UploadTweetController: UIViewController {
-    private let currentUser = CurrentUser.shared
-    private let reuseIdentifier = "UploadTweetCell"
-    private let realm = try! Realm()
-    private var user: Results<User>!
-    private var tweets: [Tweet] = [Tweet]()
-    private let config: UploadTweetConfiguration
-    private let actionButtonTitle: String
-    private let placeholderText: String
-    private let shouldShowReplyLabel: Bool
-    private var replyText: String?
-    var textViewHeight: NSLayoutConstraint!
-    private let imagePicker = UIImagePickerController()
-    private var selectedImage = [UIImage]()
-    private var collectionView: UICollectionView!
-    private lazy var actionButton: UIButton = {
-        let button = UIButton(type: .system)
-        button.addTarget(self, action: #selector(handleUploadTweet), for: .touchUpInside)
-        return button
-    }()
-    private let cameraButton = UIBarButtonItem(barButtonSystemItem: .camera, target: self, action: #selector(cameraButtonTapped))
-    private let profileImageView: UIImageView = {
-        let iv = UIImageView()
-        return iv
-    }()
-    private let captionTextView = UITextView()
-    private let placeholderLabel: UILabel = {
-        let label = UILabel()
-        return label
-    }()
-    private var documentDirectoryFileURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
-    private let filePath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
-    init(user: Results<User>!, config: UploadTweetConfiguration){
-        self.user = user
-        self.config = config
-        switch config {
-        case .tweet:
-            actionButtonTitle = "Tweet"
-            placeholderText = "What？"
-            shouldShowReplyLabel = false
-        case .reply(let tweet):
-            actionButtonTitle = "reply"
-            placeholderText = "Reply！"
-            shouldShowReplyLabel = true
-        }
-        super.init(nibName: nil, bundle: nil)
-    }
-    required init?(coder: NSCoder) {
-        fatalError("init(coder:) has not been implemented")
-    }
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        captionTextView.delegate = self
-        collectionView = UICollectionView(frame: view.frame, collectionViewLayout: UICollectionViewFlowLayout())
-        collectionView.reloadData()
-        configureUI()
-        commonInit(button: true)
-        configureImagePicker()
-        NotificationCenter.default.addObserver(self,
-                                               selector: #selector(textViewDidChange(notification:)),
-                                               name: UITextView.textDidChangeNotification, object: captionTextView)
-    }
-    override func viewDidAppear(_ animated: Bool) {
-        super.viewDidAppear(animated)
-        collectionView.reloadData()
-    }
-    deinit {
-        NotificationCenter.default.removeObserver(self)
-    }
-    @objc private func handleTextInputChange(){
-    }
-    @objc private func handleCancel(){
-        dismiss(animated: true, completion: nil)
-    }
-    @objc private func handleUploadTweet(){
-        view.endEditing(true)
-        let userRealm = User()
-        let tweetRealm = Tweet()
-        let replyTweetRealm = ReplyTweet()
-        guard let caption = captionTextView.text else { return }
-        uploadTweet(caption: caption, type: config) { [self] in
-            switch config {
-            case .tweet:  // ここ
-                tweetRealm.caption = caption
-                tweetRealm.tweetId = newId(model: tweetRealm)!
-                userRealm.tweets.append(tweetRealm)
-                try! realm.write {
-                    realm.add(tweetRealm, update: .all)
-                    realm.add(userRealm.tweets)
-                }
-            case .reply(let tweet):
-                replyTweetRealm.replyCaption = caption
-                replyTweetRealm.replyTweetId = replyNewId(model: replyTweetRealm)!
-                try! realm.write {
-                    tweet.replyTweet.append(replyTweetRealm)
-                }
-            }
-        }
-        dismiss(animated: true, completion: nil)
-    }
-    @objc private func textViewDidChange(notification: NSNotification){
-    }
-    @objc private func cameraButtonTapped(){
-    }
-    // MARK: - UI
-    private func configureUI(){
-    }
-    private func configureNavigationBar(){
-    }
-    private func uploadTweet(caption: String, type: UploadTweetConfiguration, completion: @escaping() -> Void){
-        completion()
-    }
-    private func configureImagePicker(){
-        imagePicker.delegate = self
-        imagePicker.allowsEditing = true
-    }
-    private func getDocumentsURL() -> NSURL {
-        let documentsURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0] as NSURL
-        return documentsURL
-    }
-    private func fileInDocumentsDirectory(filename: String) -> String {
-        let fileURL = getDocumentsURL().appendingPathComponent(filename)
-        return fileURL!.path
-    }
-    private func saveImageToDocuments(image: UIImage, path: String) {
-        do {
-            let pngImageData = image.pngData()
-            try pngImageData!.write(to: URL(fileURLWithPath: path), options: .atomic)
-        } catch {
-            print(error)
-        }
-    }
-    func saveImage() {
-    }
-    func imageNewId<T: Object>(model: T) -> Int? {
-    }
-}
-extension UploadTweetController: CreateNewIDRepository {
-    internal func newId<T: Object>(model: T) -> Int? {
-        guard let key = T.primaryKey() else { return nil }
-        if let last = realm.objects(T.self).sorted(byKeyPath: "tweetId", ascending: true).last,
-            let lastId = last[key] as? Int {
-            return lastId + 1
-        } else {
-            return 0
-        }
-    }
-    internal func replyNewId<T: Object>(model: T) -> Int? {
-        guard let key = T.primaryKey() else { return nil }
-        if let last = realm.objects(T.self).sorted(byKeyPath: "replyTweetId", ascending: true).last,
-            let lastId = last[key] as? Int {
-            return lastId + 1
-        } else {
-            return 0
-        }
-    }
-}
-extension UploadTweetController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
-    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
-        guard let image = info[.editedImage] as? UIImage else { return }
-        selectedImage.append(image)
-        collectionView.reloadData()
-        dismiss(animated: true, completion: nil)
-    }
-}
-extension UploadTweetController: UITextViewDelegate {
-    func textViewDidChange(_ textView: UITextView) {
-    }
-}
-```