How to convert FIRDataSnapshot in array of dictionaries? Swift 3 - ios

Question

I have created 'struct FireBaseData' which enables me to retrieve data from Firebase. I would like to convert the data into an array of dictionaries and then output the content to Desktop in a .txt file.
How can I convert self.bookingInfo to an array of dictionaries?
func startObservingDB() {
dbRef.child(FullData.uid!).observe(.value, with: { (snapshot: FIRDataSnapshot) in
// an instance of FireBaseData holding all bookings under currentUid
var newBookingInfo = [FireBaseData]()
//iterate over all children under /FullData.uid! path
for customer in snapshot.children {
//the customer node starting with cus...
let customerObject = customer as! FIRDataSnapshot
//customer key
self.customerKey = customerObject.key
print("this is the Stripe customer that can be charged \(customerObject.key)")
//now iterate over each booking which is located under customerObject in Firebase
for booking in customerObject.children {
// after each iteration through snapshot.children, create an instance of FireBaseData with 'booking' for the current iteration & assign it to bookingItem
var bookingItem = FireBaseData(snapshot: booking as! FIRDataSnapshot)
//assign key of the parent to each booking
bookingItem.Key = self.customerKey
// append the bookingItem after each iteration to newBookingInfo array
newBookingInfo.append(bookingItem)
} // end of for booking in myCustomer
} // end of for customer in snapshot.children
//assign newBookingInfo to global variable
self.bookingInfo = newBookingInfo
// sort the array in place so that the most recent date will appear first
self.bookingInfo.sort(by: {(DateAndTimeObject_1,DateAndTimeObject_2) -> Bool in
DateAndTimeObject_1.TimeStampDateAndTime > DateAndTimeObject_2.TimeStampDateAndTime
})
let arrayOfDictionary = self.bookingInfo.flatMap { $0.toAnyObject() as? [String:Any] }
let stringSeparated = arrayOfDictionary.joined(separator: "-")
print("stringSeparated \(stringSeparated)")
self.tableView.reloadData()
}, withCancel: { (Error:Any) in
print("Error firebase \(Error)")
})
} // end of startObservingDB()
//Model to retrive data
import Foundation
import UIKit
import Firebase
import FirebaseDatabase
struct FireBaseData {
// Create our Firebase Data model
// get arbitrary data
var FirebaseUserID:String!
var PaymentID:String!
var BookingAmount:String!
var BookingNumber:String!
var Key:String!
var PostCode:String!
var SelectedBathRow:Int!
var SelectedBedRow:Int!
var DateAndTime:String!
var TimeStampDateAndTime:Int!
var TimeStampBookingSavedInDB:Int!
var BookingStatusClient:Bool!
var BookingStatusAdmin:Bool!
var BookingCompleted:Bool!
//used in RootController and RootController1 to determine if the booking has already been cancelled or not
var CostToCancelClient:String!
var CostToCancelAdmin:String!
var CostToRescheduleAdmin:String!
var CostToRescheduleClient:String!
var DoormanOption:String!
var EntryInstructions:String!
var NoteInstructions:String!
var FrequencyName:String!
var FrequecyAmount:Int!
var insideCabinets:Bool!
var insideFridge:Bool!
var insideOven:Bool!
var laundryWash:Bool!
var interiorWindows:Bool!
var SuppliesName:String!
var SuppliesAmount:Int!
var FullName:String!
var FlatNumber:String!
var StreetAddress:String!
var PhoneNumber:String!
var EmailAddress:String!
let Ref:FIRDatabaseReference?
init(BookingAmount:String,
BookingNumber:String,
PostCode:String,
SelectedBathRow:Int,
SelectedBedRow:Int,
DateAndTime:String,
TimeStampDateAndTime:Int,
BookingStatusClient:Bool,
BookingStatusAdmin:Bool,
BookingCompleted:Bool,
FrequencyName:String,
FrequecyAmount:Int,
insideCabinets:Bool,
insideFridge:Bool,
insideOven:Bool,
laundryWash:Bool,
interiorWindows:Bool,
FullName:String,
SuppliesName:String,
SuppliesAmount:Int,
FlatNumber:String,
StreetAddress:String,
PhoneNumber:String,
EmailAddress:String,
Key:String = "") {
self.BookingAmount = BookingAmount
self.BookingNumber = BookingNumber
self.Key = Key
self.PostCode = PostCode
self.SelectedBathRow = SelectedBathRow
self.SelectedBedRow = SelectedBedRow
self.DateAndTime = DateAndTime
self.TimeStampDateAndTime = TimeStampDateAndTime
self.BookingStatusClient = BookingStatusClient
self.BookingStatusAdmin = BookingStatusAdmin
self.BookingCompleted = BookingCompleted
self.FrequencyName = FrequencyName
self.FrequecyAmount = FrequecyAmount
self.insideCabinets = insideCabinets
self.insideFridge = insideFridge
self.insideOven = insideOven
self.laundryWash = laundryWash
self.interiorWindows = interiorWindows
self.FullName = FullName
self.SuppliesName = SuppliesName
self.SuppliesAmount = SuppliesAmount
self.FlatNumber = FlatNumber
self.StreetAddress = StreetAddress
self.PhoneNumber = PhoneNumber
self.EmailAddress = EmailAddress
self.Ref = nil
}
// Content
// receive data from our firebase database
init(snapshot:FIRDataSnapshot){
if let firebaseUserID = (snapshot.value! as? NSDictionary)?["FirebaseUserID"] as? String {
FirebaseUserID = firebaseUserID
}
if let paymentID = (snapshot.value! as? NSDictionary)?["PaymentID"] as? String {
PaymentID = paymentID
}
if let BookingAmountContent = (snapshot.value! as? NSDictionary)?["BookingAmount"] as? String {
BookingAmount = BookingAmountContent
}
if let BookingNumberContent = (snapshot.value! as? NSDictionary)?["BookingNumber"] as? String {
BookingNumber = BookingNumberContent
}
Key = snapshot.key
Ref = snapshot.ref
if let PostCodeContent = (snapshot.value! as? NSDictionary)?["PostCode"] as? String {
PostCode = PostCodeContent
}
if let SelectedBathRowContent = (snapshot.value! as? NSDictionary)?["SelectedBathRow"] as? String {
SelectedBathRow = Int(SelectedBathRowContent)
}
if let SelectedBedRowContent = (snapshot.value! as? NSDictionary)?["SelectedBedRow"] as? String {
SelectedBedRow = Int(SelectedBedRowContent)
}
if let DateAndTimeContent = (snapshot.value! as? NSDictionary)?["DateAndTime"] as? String {
DateAndTime = DateAndTimeContent
}
if let TimeStampDateAndTimeContent = (snapshot.value! as? NSDictionary)?["TimeStampDateAndTime"] as? String {
TimeStampDateAndTime = Int(TimeStampDateAndTimeContent)
}
if let TimeStampBookingSavedInDBContent = (snapshot.value! as? NSDictionary)?["TimeStampBookingSavedInDB"] as? String {
TimeStampBookingSavedInDB = Int(TimeStampBookingSavedInDBContent)
}
if let BookingStatusClientContent = (snapshot.value! as? NSDictionary)?["BookingStatusClient"] as? String{
BookingStatusClient = Bool(BookingStatusClientContent)
}
if let BookingStatusAdminContent = (snapshot.value! as? NSDictionary)?["BookingStatusAdmin"] as? String {
BookingStatusAdmin = Bool(BookingStatusAdminContent)
}
if let BookingCompletedContent = (snapshot.value! as? NSDictionary)?["BookingCompleted"] as? String {
BookingCompleted = Bool(BookingCompletedContent)
}
if let costToCancelCient = (snapshot.value! as? NSDictionary)?["CostToCancelClient"] as? String {
CostToCancelClient = costToCancelCient
}
if let costToCancelAdmin = (snapshot.value! as? NSDictionary)?["CostToCancelAdmin"] as? String {
CostToCancelAdmin = costToCancelAdmin
}
if let costToRescheduleAdmin = (snapshot.value! as? NSDictionary)?["CostToRescheduleAdmin"] as? String {
CostToRescheduleAdmin = costToRescheduleAdmin
}
if let costToRescheduleClient = (snapshot.value! as? NSDictionary)?["CostToRescheduleClient"] as? String {
CostToRescheduleClient = costToRescheduleClient
}
if let doormanOption = (snapshot.value! as? NSDictionary)?["DoormanOption"] as? String {
DoormanOption = doormanOption
}
if let entryInstructions = (snapshot.value! as? NSDictionary)?["EntryInstructions"] as? String {
EntryInstructions = entryInstructions
}
if let noteInstructions = (snapshot.value! as? NSDictionary)?["NoteInstructions"] as? String {
NoteInstructions = noteInstructions
}
if let FrequencyNameContent = (snapshot.value! as? NSDictionary)?["FrequencyName"] as? String {
FrequencyName = FrequencyNameContent
}
if let FrequecyAmountContent = (snapshot.value! as? NSDictionary)?["FrequecyAmount"] as? String {
FrequecyAmount = Int(FrequecyAmountContent)
}
if let insideCabinetsContent = (snapshot.value! as? NSDictionary)?["InsideCabinets"] as? String {
insideCabinets = Bool(insideCabinetsContent)
}
if let insideFridgeContent = (snapshot.value! as? NSDictionary)?["InsideFridge"] as? String {
insideFridge = Bool(insideFridgeContent)
}
if let insideOvenContent = (snapshot.value! as? NSDictionary)?["InsideOven"] as? String {
insideOven = Bool(insideOvenContent)
}
if let laundryWashContent = (snapshot.value! as? NSDictionary)?["LaundryWash"] as? String {
laundryWash = Bool(laundryWashContent)
}
if let interiorWindowsContent = (snapshot.value! as? NSDictionary)?["InteriorWindows"] as? String {
interiorWindows = Bool(interiorWindowsContent)
}
if let FullNameContent = (snapshot.value! as? NSDictionary)?["FullName"] as? String {
FullName = FullNameContent
}
if let SuppliesNameContent = (snapshot.value! as? NSDictionary)?["SuppliesName"] as? String {
SuppliesName = SuppliesNameContent
}
if let SuppliesAmountContent = (snapshot.value! as? NSDictionary)?["SuppliesAmount"] as? String {
SuppliesAmount = Int(SuppliesAmountContent)
}
if let FlatNumberContent = (snapshot.value! as? NSDictionary)?["FlatNumber"] as? String {
FlatNumber = FlatNumberContent
}
if let StreetAddressContent = (snapshot.value! as? NSDictionary)?["StreetAddress"] as? String {
StreetAddress = StreetAddressContent
}
if let PhoneNumberContent = (snapshot.value! as? NSDictionary)?["PhoneNumber"] as? String {
PhoneNumber = PhoneNumberContent
}
if let EmailAddressContent = (snapshot.value! as? NSDictionary)?["EmailAddress"] as? String {
EmailAddress = EmailAddressContent
}
}
func toAnyObject() -> AnyObject {
var someDict = [String : Any]()
someDict["FirebaseUserID"] = self.FirebaseUserID as AnyObject?
someDict["PaymentID"] = self.PaymentID as AnyObject?
someDict["BookingAmount"] = self.BookingAmount as AnyObject?
someDict["BookingNumber"] = self.BookingNumber as AnyObject?
someDict["PostCode"] = self.PostCode as AnyObject?
someDict["SelectedBathRow"] = self.SelectedBathRow as AnyObject?
someDict["SelectedBedRow"] = self.SelectedBedRow as AnyObject?
someDict["DateAndTime"] = self.DateAndTime as AnyObject?
someDict["TimeStampDateAndTime"] = self.TimeStampDateAndTime as AnyObject?
someDict["TimeStampBookingSavedInDB"] = self.TimeStampBookingSavedInDB as AnyObject?
someDict["BookingStatusClient"] = self.BookingStatusClient as AnyObject?
someDict["BookingStatusAdmin"] = self.BookingStatusAdmin as AnyObject?
someDict["BookingCompleted"] = self.BookingCompleted as AnyObject?
someDict["CostToCancelClient"] = self.CostToCancelClient as AnyObject?
someDict["CostToCancelAdmin"] = self.CostToCancelAdmin as AnyObject?
someDict["CostToRescheduleAdmin"] = self.CostToRescheduleAdmin as AnyObject?
someDict["CostToRescheduleClient"] = self.CostToRescheduleClient as AnyObject?
someDict["DoormanOption"] = self.DoormanOption as AnyObject?
someDict["EntryInstructions"] = self.EntryInstructions as AnyObject?
someDict["NoteInstructions"] = self.NoteInstructions as AnyObject?
someDict["FrequencyName"] = self.FrequencyName as AnyObject?
someDict["FrequecyAmount"] = self.FrequecyAmount as AnyObject?
someDict["insideCabinets"] = self.insideCabinets ? "true" : "false"
someDict["insideFridge"] = self.insideFridge ? "true" : "false"
someDict["insideOven"] = self.insideOven ? "true" : "false"
someDict["laundryWash"] = self.laundryWash ? "true" : "false"
someDict["interiorWindows"] = self.interiorWindows ? "true" : false
someDict["FullName"] = self.FullName as AnyObject?
someDict["SuppliesName"] = self.SuppliesName as AnyObject?
someDict["SuppliesAmount"] = self.SuppliesAmount as AnyObject?
someDict["FlatNumber"] = self.FlatNumber as AnyObject?
someDict["StreetAddress"] = self.StreetAddress as AnyObject?
someDict["PhoneNumber"] = self.PhoneNumber as AnyObject?
someDict["EmailAddress"] = self.EmailAddress as AnyObject?
return someDict as AnyObject
}
}
Desired Output as per Nirav request
EmailAddress": johnmm#gmail.com,
"PhoneNumber": 07476953923,
"PaymentID": ch_1ARd6yLCZ34Ur7XG4wAqaH9H,
"BookingAmount": 27
EmailAddress": Chris#gmail.com,
"PhoneNumber": 07476953923,
"PaymentID": ch_1ARd6yLCZ34Ur7XG4wAqaH9H,
"BookingAmount": 27
EmailAddress": Mike#gmail.com,
"PhoneNumber": 07476953923,
"PaymentID": ch_1ARd6yLCZ34Ur7XG4wAqaH9H,
"BookingAmount": 27

Answer 1

What you need is to just use toAnyObject() method to get the dictionary object from your FireBaseData like this.
let arrayOfDictionary = self.bookingInfo.flatMap { $0.toAnyObject() as? [String:Any] }
You will get your desired result in arrayOfDictionary it is type of [[String:Any]]