So i am fetching from fire base config data and trying to manipulate it as so.
This is my struct :
struct FireBaseConfiguration: Codable {
var updateTime: String = ""
var iOSMinVersionForceUpdate: String = ""
var iOSMinVersionMessageUpdate: String = ""
var iOSMinFirmwareVersion: String = ""
var privacyPolicyUrlFireBase: String = ""
var termOfUseUrlFireBase: String = ""
}
This is my parser method:
func fireBaseConfigVersionMapParser(dataString: String, version: String) -> FireBaseConfiguration? {
var fireBaseConfiguration: FireBaseConfiguration?
let data = dataString.data(using: .utf8)!
do {
if let jsonArray = try JSONSerialization.jsonObject(with: data, options : .allowFragments) as? NSDictionary {
let model = jsonArray.object(forKey: version)
let data = try JSONSerialization.data(withJSONObject: model!, options: .prettyPrinted)
do {
let parsedModel = try JSONDecoder().decode(FireBaseConfiguration.self, from: data)
print("parsedModel is: \(parsedModel)")
fireBaseConfiguration = parsedModel
} catch let error{
print(error)
}
} else {
print("bad json")
}
} catch let error{
print(error)
}
return fireBaseConfiguration
}
And this is the implementation in the vc:
self.remoteConfig?.fetch(withExpirationDuration: 0, completionHandler: { [unowned self] (status, error) in
if status == .success {
self.remoteConfig?.activateFetched()
guard let configVersionMap = self.remoteConfig?.configValue(forKey: "iOSConfigVersionMap").stringValue else { return }
if let configModel = self.parser.fireBaseConfigVersionMapParser(dataString: configVersionMap, version: self.getCurrentAppVersion()!) {
print(configModel)
print(configModel.iOSMinVersionForceUpdate)
print(configModel.iOSMinVersionMessageUpdate)
var doubleForceUpdate = Double(configModel.iOSMinVersionForceUpdate)
var doubleMessageUpdate = Double(configModel.iOSMinVersionMessageUpdate)
print(doubleForceUpdate)
print(doubleMessageUpdate)
}
} else {
print("Config not fetched")
print("Error: \(error?.localizedDescription ?? "No error available.")")
}
})
so the prints are so:
FireBaseConfiguration(updateTime: "13/7/2018", iOSMinVersionForceUpdate: "1.0.2", iOSMinVersionMessageUpdate: "1.0.2", iOSMinFirmwareVersion: "1.0.1", privacyPolicyUrlFireBase: "https://www.name.com/corporate/privacy-policy", termOfUseUrlFireBase: "https://www.name.com/corporate/terms-of-use")
1.0.2
1.0.2
nil
nil
any ideas?
It is a simple String, but it's not actually a valid Double (Double values do not have two decimal places). So this is why it is failing.
What I think you actually need is the ability to compare version numbers, there are a number of other answers on the site that can show you how to do this:
Compare two version strings in Swift
Compare version numbers in Objective-C
So you can just keep your version numbers as a String
Related
I am trying to get data from firestore collection and assign it to an array of dictionaries. for this part of the code below... i get the error "Cast from 'QuerySnapshot?' to unrelated type '[[String : Any]]' always fails" and the console prints "is not working".
guard let snap = snapshot as? [[String:Any]] else {
print("is not working")
completion(.failure(DatabaseError.failedToFetch))
return
}
Here is the full code.
// fetches and returns all conversations for the user with passed in uid
public func getAllConversations(for uid: String, completion: #escaping(Result<[Conversation], Error>) -> Void) {
print("fetching all convos")
//NEW
let db = Firestore.firestore()
let CurrentUser = Auth.auth().currentUser?.uid
let ListRef = db.collection("users").document(CurrentUser!).collection("conversations")
// fetch the current users convo list
ListRef.getDocuments { snapshot, error in
if let err = error {
debugPrint("Error fetching documents: \(err)")
} else {
guard let snap = snapshot as? [[String:Any]] else {
print("is not working")
completion(.failure(DatabaseError.failedToFetch))
return
}
print("is working")
let conversations: [Conversation] = snap.compactMap({ dictionary in
guard let id = dictionary["id"] as? String,
let name = dictionary["name"] as? String,
let otherUserUID = dictionary["other_user-uid"] as? String,
let latestMessage = dictionary["latest-message"] as? [String:Any],
let date = latestMessage["date"] as? String,
let message = latestMessage["message"] as? String,
let isRead = latestMessage["is-read"] as? Bool else {
return nil
}
//save other user ID to a global var
self.test = otherUserUID
//assign data into an array of dictionaries
let latestConvoObject = LatestMessage(date: date, text: message, isRead: isRead)
return Conversation(id: id, name: name, otherUserUid: otherUserUID, latestMessage: latestConvoObject)
})
completion(.success(conversations))
}
}
}
There are a numbers of way to read that data, and the process can be simplified by conforming objects to the codable protocol but let me provide a straight forward example. I don't know what your Conversation object looks like so here's mine
class ConversationClass {
var from = ""
var to = ""
var msg = ""
var timestamp = 0
convenience init(withDoc: DocumentSnapshot) {
self.init()
self.from = withDoc.get("from") as? String ?? "no from"
self.to = withDoc.get("to") as? String ?? "no to"
self.msg = withDoc.get("msg") as? String ?? "no msg"
self.timestamp = withDoc.get("timestamp") as? Int ?? 0
}
}
and then here's the the code that reads in all the conversation documents from a Collection, stores each in a ConversationClass object, puts those in an array and returns it through an escaping completion handler
func getConversations(completion: #escaping( [ConversationClass] ) -> Void) {
let conversationCollection = self.db.collection("conversations")
conversationCollection.getDocuments(completion: { snapshot, error in
if let err = error {
print(err.localizedDescription)
return
}
guard let docs = snapshot?.documents else { return }
var convoArray = [ConversationClass]()
for doc in docs {
let convo = ConversationClass(withDoc: doc)
convoArray.append(convo)
}
completion(convoArray)
})
}
I am reading data from Firestore to be able to populate into expanding tableview cells. I have a really simple struct:
protocol PlanSerializable {
init?(dictionary:[String:Any])
}
struct Plan{
var menuItemName: String
var menuItemQuantity: Int
var menuItemPrice: Double
var dictionary: [String: Any] {
return [
"menuItemName": menuItemName,
"menuItemQuantity": menuItemQuantity,
"menuItemPrice": menuItemPrice
]
}
}
extension Plan : PlanSerializable {
init?(dictionary: [String : Any]) {
guard let menuItemName = dictionary["menuItemName"] as? String,
let menuItemQuantity = dictionary["menuItemQuantity"] as? Int,
let menuItemPrice = dictionary["menuItemPrice"] as? Double
else { return nil }
self.init(menuItemName: menuItemName, menuItemQuantity: menuItemQuantity, menuItemPrice: menuItemPrice)
}
}
And this is embedded in this struct:
protocol ComplainSerializable {
init?(dictionary:[String:Any])
}
struct Complain{
var status: Bool
var header: String
var message: String
var timeStamp: Timestamp
var email: String
var planDetails: Plan
var dictionary: [String: Any] {
return [
"status": status,
"E-mail": header,
"Message": message,
"Time_Stamp": timeStamp,
"User_Email": email,
"planDetails": planDetails
]
}
}
extension Complain : ComplainSerializable {
init?(dictionary: [String : Any]) {
guard let status = dictionary["status"] as? Bool,
let header = dictionary["E-mail"] as? String,
let message = dictionary["Message"] as? String,
let timeStamp = dictionary["Time_Stamp"] as? Timestamp,
let email = dictionary["User_Email"] as? String,
let planDetails = dictionary["planDetails"] as? Plan
else { return nil }
self.init(status: status, header: header, message: message, timeStamp: timeStamp, email: email, planDetails: planDetails)
}
}
However, I am not able to query any data from Firestore which looks like this:
Here is my query, although I am just reading all the files:
let db = Firestore.firestore()
var messageArray = [Complain]()
func loadMenu() {
db.collection("Feedback_Message").getDocuments() { documentSnapshot, error in
if let error = error {
print("error:\(error.localizedDescription)")
} else {
self.messageArray = documentSnapshot!.documents.compactMap({Complain(dictionary: $0.data())})
for plan in self.messageArray {
print("\(plan.email)")
}
DispatchQueue.main.async {
self.testTable.reloadData()
}
}
}
}
What am I doing wrong?
EDIT:
As suggested, here is the updated embedded struct:
import Foundation
// MARK: - Complain
struct Complain: Codable {
let eMail, message, timeStamp, userEmail: String
let status: Bool
let planDetails: PlanDetails
enum CodingKeys: String, CodingKey {
case eMail = "E-mail"
case message = "Message"
case timeStamp = "Time_Stamp"
case userEmail = "User_Email"
case status, planDetails
}
}
// MARK: - PlanDetails
struct PlanDetails: Codable {
let menuItemName: String
let menuItemQuantity: Int
let menuItemPrice: Double
}
Using quicktype.io, you can generate the struct. From there, all you need to do is run this tiny fragment of code within your response handler.
var compainArray = [Complain]()
func loadMenu() {
db.collection("Feedback_Message").getDocuments() { documentSnapshot, error in
if let error = error {
print("error:\(error.localizedDescription)")
} else {
guard let snapshot = documentSnapshot else {return}
for document in snapshot.documents {
if let jsonData = try? JSONSerialization.data(withJSONObject: document.data()){
if let converted = try? JSONDecoder().decode(Complain.self, from: jsonData){
self.compainArray.append(converted)
}
}
}
DispatchQueue.main.async {
self.testTable.reloadData()
}
}
}
}
Which will handle the looping, and mapping of certain variables. Let me know if you have any trouble with this.
I'm getting JSON format data from the server, then I convert the data format to the [String:Any].
JSON--> {
integer = 1;
length = "<null>";
object = (
"692b663b-b7d5-43-287ddaadc2ff"
);
string = "SANJEEV TREHAN";
}
Here is the code:
if let data = data{
do{
if let json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any] {
if let integer = json["integer"] as? Int {
DispatchQueue.main.async {
if integer == 1{
//retrieve data here
print(json)
}
else{
print("alert")
}
}
}
else{
print("no name")
}
}
after converting the data as [String: Any]:
json = `["length": <null>, "integer": 1, "string": SANJEEV TREHAN, "object": <__NSSingleObjectArrayI 0x2806acb10>(
692b663b-b7d5-43d5-daadc2ff) ]`
I want to retrieve the object key value from the json variable.
The data I want only is 692b663b-b7d54a-7dd-aadc2ff as the String
I tried many things but not getting the data which format I want.
Since you're using Swift, why not use Codable types instead? They're much easier to use and you don't have to do weird casting or testing everywhere.
struct Response: Codable {
let length: Int?
let integer: Int
let string: String
let object: SomeObject
}
struct SomeObject: Codable {
let uuid: UUID
}
do {
let response = try JSONDecoder().decode(Response.self, from: data)
} catch {
print(error)
}
Now you can now ask for the fields directly.
print(response.object.uuid)
Seems like your object key is an array of string. Here is how you can get the value.
if let yourObject = json["object"] as? [String] {
if yourObject.count != 0 {
yourObjectValue = yourObject[0]
}
}
I am building a small swift weather app using the openweatherAPI and I am running into some issues trying to parse the JSON. I have used the following function to parse the get and parse the json.
Below is my weather data struct:
struct WeatherData: Codable {
let coord: Coord
let weather: [Weather]
let base: String
let main: Main
let visibility: Int
let wind: Wind
let clouds: Clouds
let dt: Int
let sys: Sys
let id: Int
let name: String
let cod: Int
}
struct Clouds: Codable {
let all: Int
}
struct Coord: Codable {
let lon, lat: Double
}
struct Main: Codable {
let temp: Double
let pressure, humidity: Int
let tempMin, tempMax: Double
enum CodingKeys: String, CodingKey {
case temp, pressure, humidity
case tempMin = "temp_min"
case tempMax = "temp_max"
}
}
struct Sys: Codable {
let type, id: Int
let message: Double
let country: String
let sunrise, sunset: Int
}
struct Weather: Codable {
let id: Int
let main, description, icon: String
}
struct Wind: Codable {
let speed: Double
let deg: Int
}
private func getWeatherData(url: String, parameters: [String : String]) {
let JsonURLString:[String: Any] = ["url": WEATHER_URL, "parameters": parameters]
print(JsonURLString)
let urlString = JsonURLString["url"] as? String
guard let url = URL(string: urlString!) else { return }
URLSession.shared.dataTask(with: url) { ( data, response, err ) in
DispatchQueue.main.sync {
if let err = err {
print("Failed to get data from url:", err)
return
}
guard let data = data else { return }
do {
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
let city = try decoder.decode(WeatherData.self, from: data)
self.weatherData.description = city.weather[0].description
self.weatherData.temperature = Int(city.main.temp - 273)
self.weatherData.city = city.name
self.weatherData.condition = city.weather[0].id
self.updateUIWeatherData()
} catch {
print(error)
self.cityLabel.text = "Connection issues"
}
}
}.resume()
}
The exact error I am getting is the following:
longitude = -0.1337, latitude = 51.50998
["parameters": ["lat": "51.50998", "long": "-0.1337", "appid": "xxxxxxxxxxxxxxxxxx"], "url": "https://api.openweathermap.org/data/2.5/weather"]
keyNotFound(CodingKeys(stringValue: "coord", intValue: nil), Swift.DecodingError.Context(codingPath: [], debugDescription: "No value associated with key CodingKeys(stringValue: \"coord\", intValue: nil) (\"coord\").", underlyingError: nil))
I have looked at the following example and don't see how this would apply. Any help would be appreciated.
Icon is not appearing. Here is my model:
import UIKit
class WeatherDataModel {
//Declare your model variables here
var temperature: Int = 0
var condition: Int = 0
var city: String = ""
var weatherIconName = ""
var description: String = ""
//This method turns a condition code into the name of the weather condition image
func updateWeatherIcon(condition: Int) -> String {
switch (condition) {
case 0...300 :
return "tstorm1"
case 301...500 :
return "light_rain"
case 501...600 :
return "shower3"
case 601...700 :
return "snow4"
case 701...771 :
return "fog"
case 772...799 :
return "tstorm3"
case 800 :
return "sunny"
case 801...804 :
return "cloudy2"
case 900...903, 905...1000 :
return "tstorm3"
case 903 :
return "snow5"
case 904 :
return "sunny"
default :
return "dunno"
}
}
}
I have added my own icons. I have added this in the do catch block.
do {
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
let city = try decoder.decode(WeatherData.self, from: data)
print(city)
self.weatherData.description = city.weather[0].description
self.weatherData.temperature = Int(city.main.temp - 273)
self.weatherData.city = city.name
self.weatherData.condition = city.weather[0].id
self.weatherData.weatherIconName = WeatherDataModel.updateWeatherIcon(self.weatherData.condition)
self.updateUIWeatherData()
} catch {
print(error)
self.cityLabel.text = "Connection issues"
}
The error I am getting this error now:
Instance member 'updateWeatherIcon' cannot be used on type 'WeatherDataModel'; did you mean to use a value of this type instead?
You are creating only the openweathermap URL but you ignore the parameters.
Use something like this for example URLComponents and URLQueryItem to build the URL query properly
private func getWeatherData(parameters: [String : String]) {
guard let lat = parameters["lat"],
let long = parameters["long"],
let appID = parameters["appid"] else { print("Invalid parameters"); return }
var urlComponents = URLComponents(string: "https://api.openweathermap.org/data/2.5/weather")!
let queryItems = [URLQueryItem(name: "lat", value: lat),
URLQueryItem(name: "lon", value: long),
URLQueryItem(name: "appid", value: appID)]
urlComponents.queryItems = queryItems
guard let url = urlComponents.url else { return }
URLSession.shared.dataTask(with: url) { ( data, response, err ) in
DispatchQueue.main.async { // never, never, never sync !!
if let err = err {
print("Failed to get data from url:", err)
return
}
guard let data = data else { return }
do {
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
let city = try decoder.decode(WeatherData.self, from: data)
print(city)
self.weatherData.description = city.weather[0].description
self.weatherData.temperature = Int(city.main.temp - 273)
self.weatherData.city = city.name
self.weatherData.condition = city.weather[0].id
self.updateUIWeatherData()
} catch {
print(error)
self.cityLabel.text = "Connection issues"
}
}
}.resume()
}
and pass only
["lat": "51.50998", "long": "-0.1337", "appid": "xxxxxxxxxxxxxxxxxx"]
as parameters.
I am trying to retrieve a user's data from firestore, after migrating my data there from firebase. The code below was working fine with firebase, and retrieved the user's data.
However, after changing the query to firestore query, I got this error.
Print statement here "document.data()" contains the data, But I got this error. I don't know where this error is coming from.
When I compare document.data() with nil, I got "Document data: contains nil".
I don't know how I suppoused to get the data.
here is the code where I get the error,
static func getUser(uid: String, setUserDefaults: #escaping (NormalUser) -> Void){
DataService.ds.REF_USERS_NORMAL.document(uid).getDocument { (document, error) in
if error != nil{
print("\(String(describing: error?.localizedDescription))")
}else{
if document != nil{
let data = document?.data() as! [String: String]
print("Document data: \(String(describing: document?.data() as! [String: String]))")
let user = NormalUser(userData: (data as Dictionary<String, AnyObject>))
setUserDefaults(user)
}else{
print("Document data: contains nil")
}
}
}
}
Here is how I defined the variables,
import Foundation
import Firebase
class NormalUser: User {
private var _email: String?
private var _city: String?
private var _country: String?
private var _name: String?
private var _phone: String?
private var _profileImgUrl: String?
var email: String {
return _email!
}
var city: String {
return _city!
}
var country: String {
return _country!
}
var name: String {
return _name!
}
var phone: String {
return _phone!
}
var profileImgUrl: String {
set{
self.profileImgUrl = _profileImgUrl!
}
get{
if let pI = _profileImgUrl{
return pI
}
return ""
}
}
init(userData: Dictionary<String, AnyObject>) {
super.init(userId: userData["uid"] as! String, user: userData)
if let email = userData["email"] as? String {
self._email = email
}
if let city = userData["city"] as? String {
self._city = city
}
if let country = userData["country"] as? String {
self._country = country
}
if let name = userData["name"] as? String {
self._name = name
}
if let phone = userData["phone"] as? String {
self._phone = phone
}
if let profileImgUrl = userData["imgUrl"] as? String {
self._profileImgUrl = profileImgUrl
}
}
static func createNormalUser(uid: String, userData: Dictionary<String, String>) {
// add user to database
//DataService.ds.REF_USERS_NORMAL.child(uid).setValue(userData)
DataService.ds.REF_USERS_NORMAL.document(uid).setData(userData) { (err) in
if let err = err {
print("Error writing document: \(err)")
} else {
print("Document successfully written!")
}
}
addUserToGroup(uid:uid, group:"normal")
}
static func updateUserProfile(uid: String, userData: Dictionary<String, String>) {
//DataService.ds.REF_USERS_NORMAL.child(uid).updateChildValues(userData)
DataService.ds.REF_USERS_NORMAL.document(uid).updateData(userData)
}
static func getUser(uid: String, setUserDefaults: #escaping (NormalUser) -> Void){
DataService.ds.REF_USERS_NORMAL.document(uid).getDocument { (document, error) in
if error != nil{
print("\(String(describing: error?.localizedDescription))")
}else{
if document != nil{
let data = document?.data() as! [String: String]
print("Document data: \(String(describing: document?.data() as! [String: String]))")
let user = NormalUser(userData: (data as Dictionary<String, AnyObject>))
setUserDefaults(user)
}else{
print("Document data: contains nil")
}
}
}
}
}
I solved the issue!
For any one who may come across this error, the problem was with userId. I was getting the user id from firebase, which, in my case, no longer serves my query, and eventually getting a nil. When I got the ID directly from authentication,
let userID = Auth.auth().currentUser?.uid
It SOLVED the issue!