Add values from multiple dictionaries in firebase into an Int - arrays

Question

I'm using firebase to store the amount of views every video in my app has been seen. What I want to is to gather all views from from one users all videos and display the total number of views. However I'm having problems fetching down the data and putting all the dictionary values together into a Int/String!
Ive tried many different solutions so far, but still I get all the different values in like array / values of the dictionary instead of everything added into one value
This is my code for getting all the videoviews of a specific user, no problems with this so far. When I print "intConvert" I get like all the views in different rows.
let ref = Database.database().reference().child("videoviews").child(stringUid)
ref.observe(.value, with: { (snapshot) in
if let dictionary = snapshot.value as? [String: AnyObject]{
let numbOfViews = dictionary["views"] as! String
let intConvert = Int(numbOfViews)!
let ArrayViews = [intConvert]
This is my database structure:
**videoviews**
-Lb52VxrEqdSRGljJdP7
views: "25"
-Lb53ARq_lOHEbTruW8s
views: "273"
-Lb53A_cEyX3CYc4mKYn
views: "38"
EDIT: If I do print(dictionary), the dictionary from "if let dictionary = snapshot.value as? [String: Anyobject] looks like this:
["views": 642]
["views": 660]
["views": 628]
["views": 630]
["views": 615]
["views": 3]
["views": 0]
["views": 2]
["views": 1]
Edit: (I was confused and forgot to add the bracelets, sorry for that.)
when I do I "print(dictionary.values) the console looks like this (the key values from different dictionaries):
[642]
[660]
[628]
[630]
[615]
[3]
[0]
[2]
[1]
I then tried to put this together in a loop like this:
var bLoader = 0.0
for hejArray in 0...ArreyViews.count-1{
bLoader += Double(Arrej[hejArray])
}
But when I print "bLoader" I still get all the views for every video in different rows instead of gathered in one value.
So what do I need to do put together all the values from different dictionaries in Firebase into one Variable?
I appreciate all help I can get with this, I can imagine it shouldn't be too hard but that im missing out on something.
EDIT /// I finally found the problem. the "StringUid" that I passed in have different amount of values and therefore the whole function would be called for 9 times if the videos of the user had the amount of 9. The solution that finally worked looked like this:
Global Array declaration:
var myArray = [String]()
Inside the function:
if let dictionary = snapshot.value as? [String: AnyObject]{
let numbOfViews = dictionary["views"] as! String
let intConvert = Int(numbOfViews)!
self.myArray.append(numbOfViews)
let intArray = self.myArray.map { Int($0)!}
let total = intArray.reduce(0, +)
self.totalViewsShower2.text = String(total)
Thank you in advance!

Answer 1

Update
If you can directly print the values from your dictionary like that then the solution might be as easy as
let total = dictionary.values.reduce(0, +)
or if values are strings you need to convert them to Int
let total = dictionary.values.reduce(0) {sum, value -> Int in return sum + (Int(value) ?? 0)}
If on the other hand they values are string but defined as Any you need an extra cast
let total2 = dictionary2.values.reduce(0) {sum, value -> Int in
if let str = value as? String {
return sum + (Int(str) ?? 0)
}
return 0
}
I am not exactly sure what your dictionary contains but I assumed something like this
let dictionary: [String: Any] = ["views": ["1", "2", "3"]]
Then you can cast the value for the "views" key to a String array and then use reduce on that array to get the sum
let array = dictionary["views"] as! [String]
let total = array.reduce(0) {sum, value -> Int in return sum + (Int(value) ?? 0)}

Answer 2

According to your Database structure which looks something like this
{
"videoviews": {
"Lb52VxrEqdSRGljJdP7": {
"views": "25"
},
"Lb53ARq_lOHEbTruW8s": {
"views": "273"
},
"Lb53A_cEyX3CYc4mKYn": {
"views": "38"
}
}
}
let ref = Database.database().reference().child("videoviews").child(stringUid)
ref.observe(.value, with: { (snapshot) in
if let dictionary = snapshot.value as? [String: AnyObject] {
let viewsArray = dictionary.values
.compactMap { $0 as? [String: String] }
.compactMap { Int($0["views"] ?? "") }
let totalViews = viewsArray.reduce(0, +)
}
})