I have an issue where I am calling a function, it's appending an array, and then I get a random element from it, the problem is that is keeps getting wiped right after the function is called before I can use it, therefore, the random element request is causing a fatal error.
Utilities.getKnockKnockJokes {
self.previousKnockKnockJoke = self.currentKnockKnockJoke
print("currentKnockKnockJoke = \(self.currentKnockKnockJoke)")
self.currentKnockKnockJoke = KnockKnockJokes.knockKnockJokes.randomElement()!
print("newCurrentKnockKnockJoke = \(self.currentKnockKnockJoke)")
self.singleServeText.text = self.currentKnockKnockJoke
}
The function called is below:
static func getKnockKnockJokes(completion: @escaping () -> Void) {
let db = Firestore.firestore()
let group = DispatchGroup()
group.enter()
DispatchQueue.global(qos: .background).async {
print("countKnockKnockJokes = \(self.countKnockKnockJokes)")
if self.countKnockKnockJokes == 0 {
while self.countKnockKnockJokes == 0 {
if self.countKnockKnockJokes == 0 {
self.countKnockKnockJokes = 1
group.leave()
}else {
print("leaving")
group.leave()
}
}
}else {
print("skipped")
group.leave()
}
}
group.notify(queue: .main) {
db.collection("jokes").document("Knock Knock Jokes").addSnapshotListener { document, error in
//check for error
if error == nil {
//check if document exists
if document != nil && document!.exists {
if let JokeNum = document!.get("JokeNum") as? Int {
self.countKnockKnockJokes = JokeNum
UserDefaults.standard.setValue(JokeNum, forKey: "countKnockKnockJokes")
print("KnockKnockJokeNum = \(self.countKnockKnockJokes)")
}
var count = 1
print("count = \(count)/\(self.countKnockKnockJokes)")
print("countKnockKnockJoke = \(self.countKnockKnockJokes)")
//Utilities.knockKnockJokes.removeAll()
KnockKnockJokes.knockKnockJokes.removeAll()
for _ in 0...self.countKnockKnockJokes {
print("count = \(count)/\(self.countKnockKnockJokes)")
if let Joke = document!.get("\(count)") as? String {
print("KnockKnockJokeNum = \(self.countKnockKnockJokes)")
if Utilities.jokes.contains("\(Joke) - From Knock Knock Jokes") {}else {
print("Joke = \(Joke)")
Utilities.jokes.append("\(Joke) - From Knock Knock Jokes")
KnockKnockJokes.knockKnockJokes.append(Joke)
print("KnockKnockJokes = \(KnockKnockJokes.knockKnockJokes)")
UserDefaults.standard.set(KnockKnockJokes.knockKnockJokes, forKey: defaults.knockKnockJokes.rawValue)
Utilities.updateJokesDefaults()
}
print("countKnockKnockFinal = \(count)/\(self.countKnockKnockJokes)")
if count == self.countKnockKnockJokes {
completion()
}
count = count + 1
}
}
}
}
}
}
}
I fixed it, my remove all was running after all the appends.