CODEWITHSUNDEEP
iosswiftfirebaseswift3firebase-realtime-database
codechicksrock
codechicksrock

Reputation: 301

Firebase not receiving key values Swift

For some reason i cannot receive the values of my child and im not understanding why. Each value is represented as a double.

Does not make it past

if let snapDict = snap.value as? [Double:AnyObject]{

enter image description here

func recieveChartValues() {

    //Firebase Initialization
    var ref: FIRDatabaseReference!
    ref = FIRDatabase.database().reference()

    ref.child("general_room_index").observeSingleEvent(of: .value, with: {(snap) in


        if let snapDict = snap.value as? [Double:AnyObject]{


            for each in snapDict{

                print("key ", each.key)
                self.values.append(each.key)
            }
        }
    })

}//retrive values func

Upvotes: 0

Views: 233

Answers (1)

Bhavin Bhadani
Bhavin Bhadani

Reputation: 22374

If all of the keys are integers, and more than half of the keys between 0 and the maximum key in the object have non-empty values, then Firebase will render it as an array.

So I believe that you always use some string as key rather than Int because sequential manner key often converted in to arrays as firebase believes that its auto incremented ...

More info. check this answer

Upvotes: 1

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