Get Firestore subcollections

Get Firestore subcollections



I have a problem with getting data from the Firestore with a following structure:



Firestore structure



Here is how I get category collection:


var defaultStore: Firestore?
var location: [DocumentSnapshot] =

override func viewDidLoad()
super.viewDidLoad()
defaultStore = Firestore.firestore()

defaultStore?.collection("Category").getDocuments (querySnapshot: QuerySnapshot?, error: Error?) in
if let error = error
print(error.localizedDescription)
else
self.location = (querySnapshot?.documents)!
DispatchQueue.main.async
self.tableView.reloadData()






It gives me: Books, Films, From test and Serials.
But how can I get collections from Films for example?


Books


Films


From test


Serials


Films






you can just use another collection call. defaultStore?.collection("Category").collection("Foo").getDocuments()

– Galo Torres Sevilla
Sep 13 '18 at 8:02






@GaloTorresSevilla , It's give me error Value of type 'CollectionReference' has no member 'collection'

– Vlad78
Sep 13 '18 at 8:38


Value of type 'CollectionReference' has no member 'collection'






Yes. Sorry I forgot to add the document after the first collection

– Galo Torres Sevilla
Sep 13 '18 at 17:25




1 Answer
1



You can try


defaultStore?.collection("Category").document("Film").collection("firstFilm").getDocuments();



Because Films, Books etc are documents not collections as you can see. For more info read here Firestore data model



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