Firestore内のオブジェクトを使用してデータを配列に設定する方法

私がやりたいのは、Firestoreの配列にすべてのデータを設定することです。次のようになります。Firestore

しかし、私がしたことは私にこのエラーを与えます：

*** Terminating app due to uncaught exception 'FIRInvalidArgumentException', reason: 'Unsupported type: _SwiftValue'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010b8d71e6 __exceptionPreprocess + 294
    1   libobjc.A.dylib                     0x000000010af6c031 objc_exception_throw + 48
    2   test collectionview                 0x00000001092e7dda -[FSTUserDataConverter parseScalarValue:context:] + 2169
    3   test collectionview                 0x00000001092e729c -[FSTUserDataConverter parseData:context:] + 792
    4   test collectionview                 0x00000001092e735b __42-[FSTUserDataConverter parseData:context:]_block_invoke + 94
    5   CoreFoundation                      0x000000010b87ac50 __NSArrayEnumerate + 592
    6   test collectionview                 0x00000001092e7122 -[FSTUserDataConverter parseData:context:] + 414
    7   test collectionview                 0x00000001092e65e3 __46-[FSTUserDataConverter parsedSetData:options:]_block_invoke + 346
    8   libswiftCore.dylib                  0x000000010e8a0af1 _T0s26_SwiftDeferredNSDictionaryC23enumerateKeysAndObjectsySi7options_ys9UnmanagedVyyXlG_AGSpys5UInt8VGtXB5usingtFTf4dgn_n + 289
    9   libswiftCore.dylib                  0x000000010e703b11 _T0s26_SwiftDeferredNSDictionaryC23enumerateKeysAndObjectsySi7options_ys9UnmanagedVyyXlG_AGSpys5UInt8VGtXB5usingtF + 17
    10  libswiftCore.dylib                  0x000000010e7040cb _T0s26_SwiftDeferredNSDictionaryC23enumerateKeysAndObjectsySi7options_ys9UnmanagedVyyXlG_AGSpys5UInt8VGtXB5usingtFTo + 43
    11  test collectionview                 0x00000001092e6303 -[FSTUserDataConverter parsedSetData:options:] + 467
    12  test collectionview                 0x00000001092dc0aa -[FIRDocumentReference setData:options:completion:] + 147
    13  test collectionview                 0x00000001092dbf1a -[FIRDocumentReference setData:] + 92
    14  test collectionview                 0x00000001091e8f85 _T019test_collectionview25NewExerciseViewControllerC08doneWithD6ActionySo15UIBarButtonItemCF + 7845
    15  test collectionview                 0x00000001091e91cc _T019test_collectionview25NewExerciseViewControllerC08doneWithD6ActionySo15UIBarButtonItemCFTo + 60
    16  UIKit                               0x000000010c46a3e8 -[UIApplication sendAction:to:from:forEvent:] + 83
    17  UIKit                               0x000000010ce6f209 __45-[_UIButtonBarTargetAction _invoke:forEvent:]_block_invoke + 154
    18  UIKit                               0x000000010ce6f142 -[_UIButtonBarTargetAction _invoke:forEvent:] + 154
    19  UIKit                               0x000000010c46a3e8 -[UIApplication sendAction:to:from:forEvent:] + 83
    20  UIKit                               0x000000010c5e57a4 -[UIControl sendAction:to:forEvent:] + 67
    21  UIKit                               0x000000010c5e5ac1 -[UIControl _sendActionsForEvents:withEvent:] + 450
    22  UIKit                               0x000000010c5e4a09 -[UIControl touchesEnded:withEvent:] + 580
    23  UIKit                               0x000000010c4df0bf -[UIWindow _sendTouchesForEvent:] + 2729
    24  UIKit                               0x000000010c4e07c1 -[UIWindow sendEvent:] + 4086
    25  UIKit                               0x000000010c484310 -[UIApplication sendEvent:] + 352
    26  UIKit                               0x000000010cdc56af __dispatchPreprocessedEventFromEventQueue + 2796
    27  UIKit                               0x000000010cdc82c4 __handleEventQueueInternal + 5949
    28  CoreFoundation                      0x000000010b879bb1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    29  CoreFoundation                      0x000000010b85e4af __CFRunLoopDoSources0 + 271
    30  CoreFoundation                      0x000000010b85da6f __CFRunLoopRun + 1263
    31  CoreFoundation                      0x000000010b85d30b CFRunLoopRunSpecific + 635
    32  GraphicsServices                    0x000000011147aa73 GSEventRunModal + 62
    33  UIKit                               0x000000010c469057 UIApplicationMain + 159
    34  test collectionview                 0x00000001091f19a7 main + 55
    35  libdyld.dylib                       0x000000010f1c6955 start + 1
    36  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

私は次のような「運動」のモデルを作成しました。

import Foundation
import Firestore

protocol  DocumentSerializable {
    init?(dictionary:[String:Any])
}


struct Exercise {
    var title: String
    var language: String
    var translated: String
    var uid: String
    var userId: String
    var dueDate: Int
    var lastOpen: Int
    var words: Array<Any>
    
    var dictionary:[String:Any] {
        return [
            "title":title,
            "language":language,
            "translated":translated,
            "uid":uid,
            "userId":userId,
            "dueDate":dueDate,
            "lastOpen":lastOpen,
            "words":words
        ]
    }
}

extension Exercise : DocumentSerializable {
    init?(dictionary: [String : Any]) {
        guard let title = dictionary["title"] as? String,
            let language = dictionary["language"] as? String,
            let translated = dictionary["translated"] as? String,
            let uid = dictionary["uid"] as? String,
            let userId = dictionary["userId"] as? String,
            let dueDate = dictionary["dueDate"] as? Int,
            let lastOpen = dictionary["lastOpen"] as? Int,
            let words = dictionary["words"] as? Array<Any>
        
            else {return nil}
        
        self.init(title: title, language: language, translated: translated, uid: uid, userId: userId, dueDate: dueDate, lastOpen: lastOpen, words: words)
    }
}

そしてこのような言葉のモデル：

import Foundation
import Firestore

protocol  DocumentSerializable2 {
    init?(dictionary:[String:Any])
}

struct Word {
    var translation: String
    var word: String
   
    var dictionary:[String:Any] {
        return [
            "translation":translation,
            "word":word
            
        ]
    }
}

extension Word : DocumentSerializable {
    init?(dictionary: [String : Any]) {
        guard let translation = dictionary["translation"] as? String,
            let word = dictionary["word"] as? String
            
            else {return nil}
        
        self.init(translation: translation, word: word)
    }
}

私はこのコードを試してデータを設定しましたが、単語の部分を除くすべてのデータで正常に機能します。

let newExercise = Exercise(title: exerciseTitleTxt.text!, language: language1Txt.title(for: .normal)!, translated: language2Txt.title(for: .normal)!, uid: "test", userId: uid!, dueDate: dueDateMiliseconds, lastOpen: Date().millisecondsSince1970, words: wordsArray)

       db.collection("exercises").document("test2").setData(newExercise.dictionary)

単語を「wordsArray」に入れるには、次のようにします。

let word = Word(translation: translationTxt.text!, word: wordTxt.text!)
wordsArray.append(word)

したがって、私自身の推測では、Exerciseモデルで単語を保存する方法を変更する必要がありますが、それをどのように正確に行うかについて頭を悩ませることはできません。

事前に助けてくれてありがとう！