如何在Swift 5中将文档转换为自定义对象? [英] How to convert document to a custom object in Swift 5?

问题描述

我一直试图将从Firebase的Cloud Firestore检索到的文档转换为Swift 5中的自定义对象.我正在关注文档:

I've been trying to convert the document retrieved from the Firebase's Cloud Firestore to a custom object in Swift 5. I'm following the documentation:

• https://firebase.google.com/docs /firestore/query-data/get-data#custom_objects

但是，Xcode向我显示行try $0.data(as: JStoreUser.self)的错误Value of type 'NSObject' has no member 'data'.我已将结构定义为Codable.

However, Xcode shows me the error Value of type 'NSObject' has no member 'data' for the line try $0.data(as: JStoreUser.self). I've defined the struct as Codable.

代码:

func getJStoreUserFromDB() {
    db = Firestore.firestore()
    let user = Auth.auth().currentUser
    db.collection("users").document((user?.email)!).getDocument() { 
        (document, error) in
        let result = Result {
            try document.flatMap {
                try $0.data(as: JStoreUser.self)
            }
        }
    }
}

用户结构:

public struct JStoreUser: Codable {
    let fullName: String
    let whatsApp: Bool
    let phoneNumber: String
    let email: String
    let creationDate: Date?
}

屏幕截图:

有人知道如何解决这个问题吗?

Does anyone know how to resolve this?

推荐答案

与Firebase团队联系后，我找到了所需的解决方案.事实证明，我必须显式地执行import FirebaseFirestoreSwift而不是仅仅执行import Firebase.此后错误将消失. (当然，您首先需要将Pod添加到您的Podfile中:D)

After contacting the firebase team, I found the solution I was looking for. It turns out I have to do import FirebaseFirestoreSwift explicitly instead of just doing import Firebase. The error will disappear after this. (And of course you'll need to add the pod to your podfile first:D)

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