CODEWITHSUNDEEP
swiftgoogle-cloud-firestore
jimijon
jimijon

Reputation: 2156

Why does my firestore collection return 0 documents

Here is my database.

enter image description here

This is my code

 let db = Firestore.firestore()

                    let defaults = UserDefaults.standard
                    let userId: String! = defaults.string(forKey: "UserUUID")

                    db.collection("Portfolios")
                        .whereField("users." + userId, isEqualTo: true)
                        .limit(to: 1)
                        .getDocuments() { (querySnapshot, err) in
                            if let err = err {
                                print("Error getting documents: \(err)")
                            } else {

                                for portfolioDocument in querySnapshot!.documents {

                                    print("Portfolio: \(portfolioDocument.documentID) => \(portfolioDocument.data())")
                                    let portRef =  db.collection("Portfolios").document("portfolioDocument.documentID")

                                    portRef.getDocument { (document, error) in
                                        if let document = document {
                                            print("Document data: \(document.data())")


                                            portRef.collection("Accounts").getDocuments() { (querySnapshot, err) in
                                                if let err = err {
                                                    print("Error getting documents: \(err)")
                                                } else {
                                                    var docs:[DocumentSnapshot] = []
                                                    for document in querySnapshot!.documents {

I have even harde coded the "Mogu..." Document ID to no effect. What is the obvious thing I am missing?

querySnapshot.documents is 0 at the last line:

  for document in querySnapshot!.documents {

EDIT: It is the last query that returns 0 documents. The rest work:

 no, that has no effect on the top level as that is successful. It is the last query that is brings 0 documents:  portRef.collection("Accounts").getDocuments() { (querySnapshot, err) in
                                                if let err = err {
                                                    print("Error getting documents: \(err)")
                                                } else {
                                                    var docs:[DocumentSnapshot] = []
                                                    for document in querySnapshot!.documents {

Upvotes: 3

Views: 1513

Answers (1)

Juan Lara
Juan Lara

Reputation: 6854

The Coinbase and Default documents in your Accounts collection don't actually exist, see non-existent docs in the console. In your screenshot, notice that the document names for Coinbase and Default are italicized and grayed out. This indicates that these documents weren't directly created but that they are on the path of a document nested deeper down which does exist.

Try setting a field value within Coinbase and Default. This should get them to appear in your query.

Upvotes: 10

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