在Swift中向firebasefirestore資料庫添加欄位-有解無憂

我正在嘗試向我的服務結構添加一個新欄位（主題標簽）并在 Xcode 中出現錯誤。“在范圍內找不到'主題標簽'”是我的代碼。

import SwiftUI
import Firebase
import FirebaseFirestoreSwift

struct FeedTry: Identifiable, Decodable {
    @DocumentID var id: String?
    let caption: String
    let myhashtags: String  //Added this new field
    let timestamp: Timestamp
    let uid: String
    var likes: Int
    var saves: Int
    
    var user: User?
    var didLike: Bool? = false
    var didSave: Bool? = false
}

以下是我的服務視圖

struct UploadTryService { 
    func uploadTry(caption: String, completion: @escaping(Bool) -> Void) {
        guard let uid = Auth.auth().currentUser?.uid else { return }
        
        let data = ["uid": uid,
                    "caption": caption,
                    "hashtags": myhashtags, //getting the error here
                    "likes": 0,
                    "saves": 0,
                    "timestamp": Timestamp(date: Date())
        ] as [String : Any]
        
        Firestore.firestore().collection("try").document().setData(data) { error in
            if let error = error {
                print("DEBUG: Failed to upload try with error: \(error.localizedDescription)")
                completion(false)
                return
            }
            
            completion(true)
        }
    }


}

在網上和檔案中檢查，我還沒有找到修復它的方法。

uj5u.com熱心網友回復：

就像您對所做的那樣caption，您可以將一個引數傳遞給uploadTry一個值為myhashtags:

struct UploadTryService { 
    func uploadTry(caption: String, myhashtags: String, completion: @escaping(Bool) -> Void) { //<-- Here
        guard let uid = Auth.auth().currentUser?.uid else { return }
        
        let data = ["uid": uid,
                    "caption": caption,
                    "myhashtags": myhashtags, //getting the error here
                    "likes": 0,
                    "saves": 0,
                    "timestamp": Timestamp(date: Date())
        ] as [String : Any]
        
        Firestore.firestore().collection("try").document().setData(data) { error in
            if let error = error {
                print("DEBUG: Failed to upload try with error: \(error.localizedDescription)")
                completion(false)
                return
            }
            
            completion(true)
        }
    }
}

這意味著在您的方解石中，您還需要包含它：

uploadTry(caption: "Caption", myhashtags: "Hashtags here", ...)

另一種選擇（取決于您要查找的內容）是只傳入一個空的String：

let data = ["uid": uid,
                    "caption": caption,
                    "myhashtags": "",
                    "likes": 0,
                    "saves": 0,
                    "timestamp": Timestamp(date: Date())

請注意，在這兩種情況下，我都將字典鍵更改為，myhashtags因為這是您在模型中命名的。您可以選擇任一鍵——只要確保它們匹配即可。

轉載請註明出處，本文鏈接：https://www.uj5u.com/ruanti/446135.html

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