我想要做的是将所有数据设置到 Firestore 中的数组中,它看起来像这样: Firestore
但是我所做的给了我这个错误:
*** 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)
我为我的“练习”制作了一个模型,如下所示:
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)
}
}
以及这样的单词的模型:
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)
}
}
我已经尝试使用此代码来设置数据,它确实适用于除单词部分之外的所有数据:
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)
为了将单词放入“wordsArray”中,我这样做:
let word = Word(translation: translationTxt.text!, word: wordTxt.text!)
wordsArray.append(word)
所以我自己的猜测是,我需要改变在练习模型中保存单词的方式,但我无法完全理解我到底要如何做到这一点。
感谢您提前提供的帮助!
最佳答案
这是因为你的words
参数是 Word 对象的数组 - Array<Word>
或[Word]
。 Firebase 不知道如何序列化它。您需要做的是将单词数组转换为字典数组。
var dictionary:[String:Any] {
return [
...
"words" : words.map({$0.dictionary})
]
}
关于ios - 如何使用 Firestore 中的对象将数据设置为数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51951473/