Question

我正在尝试将数据保存在Firebase中，但我想按日期保存，以便我可以按日期获取它。

func saveData(){
    ref = Database.database().reference()
    let userid = Auth.auth().currentUser?.uid
    let timestamp = NSDate().timeIntervalSince1970
    self.date = timestamp

    let fuelDetails:[String:Any] = ["tank_for_refueling" : self.tankForRefuelingTextField.text ?? "",
                                    "fuel_quantity_refueled" : self.fuelQuantityRefueledTextField.text ?? "",
                                    "tank_after_refueling" : self.tankAfterRefuelingTextField.text ?? "",
                                    "date": self.date ?? 0]
    ref.child(Constants.NODE_MAINTENANCE).child("date").child(userid!).child(Constants.NODE_FUEL).childByAutoId().setValue(fuelDetails){(error,databaseRef) in
        if let error = error{
            print(error.localizedDescription)
        }

    }
}

Answer 1

您可以使用以下内容：

    func saveData(){
        // ... other code
        let getDate = Date()
        let formatter = DateFormatter()
        formatter.dateFormat = "dd-MM-yyyy"
        self.date = formatter.string(from: getDate)

        let fuelDetails:[String:Any] = ["tank_for_refueling" : self.tankForRefuelingTextField.text ?? "",
                                        "fuel_quantity_refueled" : self.fuelQuantityRefueledTextField.text ?? "",
                                        "tank_after_refueling" : self.tankAfterRefuelingTextField.text ?? "",
                                        "date": self.date ?? 0]
        ref.child(Constants.NODE_MAINTENANCE).child("\(self.date)").child(userid!).child(Constants.NODE_FUEL).childByAutoId().setValue(fuelDetails){(error,databaseRef) in
            if let error = error{
                print(error.localizedDescription)
            }

        }
    }

编辑万一Firestore试图解析孩子，语法也会从点更新为破折号

我想按日期将数据保存在Firebase中，这意味着用户保存的所有数据都在该日期保存

1 个答案: