swift firestore appending users to array - completion block












1















I am trying to call the function self.setupDummyCards() after self.cardViewModels.append(user.toCardViewModel()) has finished appending all users to CardViewModels Array though i can't figure out where to put it?



fileprivate func fetchUsersFromFirestore() {
guard let uid = Auth.auth().currentUser?.uid else { return }


Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
if let err = err {
print("Error getting documents: (err)")
} else {
for document in querySnapshot!.documents {
let d = document.data()
d.forEach({ (key: String, value: Any) in



Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

self.cardViewModels.append(user.toCardViewModel())

//below it is called after each user is appended, meaning it appends the same users again and again until the last user is add
self.setupDummyCards()
})
//here is called before self.cardViewModels.append(user.toCardViewModel())
})

//here is called before self.cardViewModels.append(user.toCardViewModel())

}
//here is called before self.cardViewModels.append(user.toCardViewModel())
}
//here is called before self.cardViewModels.append(user.toCardViewModel())
}
//here is called before self.cardViewModels.append(user.toCardViewModel())
}









share|improve this question





























    1















    I am trying to call the function self.setupDummyCards() after self.cardViewModels.append(user.toCardViewModel()) has finished appending all users to CardViewModels Array though i can't figure out where to put it?



    fileprivate func fetchUsersFromFirestore() {
    guard let uid = Auth.auth().currentUser?.uid else { return }


    Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
    if let err = err {
    print("Error getting documents: (err)")
    } else {
    for document in querySnapshot!.documents {
    let d = document.data()
    d.forEach({ (key: String, value: Any) in



    Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

    self.cardViewModels.append(user.toCardViewModel())

    //below it is called after each user is appended, meaning it appends the same users again and again until the last user is add
    self.setupDummyCards()
    })
    //here is called before self.cardViewModels.append(user.toCardViewModel())
    })

    //here is called before self.cardViewModels.append(user.toCardViewModel())

    }
    //here is called before self.cardViewModels.append(user.toCardViewModel())
    }
    //here is called before self.cardViewModels.append(user.toCardViewModel())
    }
    //here is called before self.cardViewModels.append(user.toCardViewModel())
    }









    share|improve this question



























      1












      1








      1








      I am trying to call the function self.setupDummyCards() after self.cardViewModels.append(user.toCardViewModel()) has finished appending all users to CardViewModels Array though i can't figure out where to put it?



      fileprivate func fetchUsersFromFirestore() {
      guard let uid = Auth.auth().currentUser?.uid else { return }


      Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
      if let err = err {
      print("Error getting documents: (err)")
      } else {
      for document in querySnapshot!.documents {
      let d = document.data()
      d.forEach({ (key: String, value: Any) in



      Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

      self.cardViewModels.append(user.toCardViewModel())

      //below it is called after each user is appended, meaning it appends the same users again and again until the last user is add
      self.setupDummyCards()
      })
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      })

      //here is called before self.cardViewModels.append(user.toCardViewModel())

      }
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      }
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      }
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      }









      share|improve this question
















      I am trying to call the function self.setupDummyCards() after self.cardViewModels.append(user.toCardViewModel()) has finished appending all users to CardViewModels Array though i can't figure out where to put it?



      fileprivate func fetchUsersFromFirestore() {
      guard let uid = Auth.auth().currentUser?.uid else { return }


      Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
      if let err = err {
      print("Error getting documents: (err)")
      } else {
      for document in querySnapshot!.documents {
      let d = document.data()
      d.forEach({ (key: String, value: Any) in



      Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

      self.cardViewModels.append(user.toCardViewModel())

      //below it is called after each user is appended, meaning it appends the same users again and again until the last user is add
      self.setupDummyCards()
      })
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      })

      //here is called before self.cardViewModels.append(user.toCardViewModel())

      }
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      }
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      }
      //here is called before self.cardViewModels.append(user.toCardViewModel())
      }






      swift google-cloud-firestore






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 '18 at 9:12









      Damon

      5281619




      5281619










      asked Nov 23 '18 at 9:08









      robbieboy888robbieboy888

      277




      277
























          1 Answer
          1






          active

          oldest

          votes


















          0














          i just got documents.count and then only called the self.setupDummyCards() once documents.count was equal to cardViewModels.count



             fileprivate func fetchUsersFromFirestore() {
          guard let uid = Auth.auth().currentUser?.uid else { return }
          Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
          if let err = err {
          print("Error getting documents: (err)")
          } else {

          let dc = querySnapshot?.documents.count

          for document in querySnapshot!.documents {
          let d = document.data()



          d.forEach({ (key: String, value: Any) in



          Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

          self.cardViewModels.append(user.toCardViewModel())

          if self.cardViewModels.count == dc {
          self.setupDummyCards()
          }
          })

          })



          }

          }
          }

          }





          share|improve this answer


























            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53443567%2fswift-firestore-appending-users-to-array-completion-block%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            i just got documents.count and then only called the self.setupDummyCards() once documents.count was equal to cardViewModels.count



               fileprivate func fetchUsersFromFirestore() {
            guard let uid = Auth.auth().currentUser?.uid else { return }
            Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
            if let err = err {
            print("Error getting documents: (err)")
            } else {

            let dc = querySnapshot?.documents.count

            for document in querySnapshot!.documents {
            let d = document.data()



            d.forEach({ (key: String, value: Any) in



            Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

            self.cardViewModels.append(user.toCardViewModel())

            if self.cardViewModels.count == dc {
            self.setupDummyCards()
            }
            })

            })



            }

            }
            }

            }





            share|improve this answer






























              0














              i just got documents.count and then only called the self.setupDummyCards() once documents.count was equal to cardViewModels.count



                 fileprivate func fetchUsersFromFirestore() {
              guard let uid = Auth.auth().currentUser?.uid else { return }
              Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
              if let err = err {
              print("Error getting documents: (err)")
              } else {

              let dc = querySnapshot?.documents.count

              for document in querySnapshot!.documents {
              let d = document.data()



              d.forEach({ (key: String, value: Any) in



              Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

              self.cardViewModels.append(user.toCardViewModel())

              if self.cardViewModels.count == dc {
              self.setupDummyCards()
              }
              })

              })



              }

              }
              }

              }





              share|improve this answer




























                0












                0








                0







                i just got documents.count and then only called the self.setupDummyCards() once documents.count was equal to cardViewModels.count



                   fileprivate func fetchUsersFromFirestore() {
                guard let uid = Auth.auth().currentUser?.uid else { return }
                Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
                if let err = err {
                print("Error getting documents: (err)")
                } else {

                let dc = querySnapshot?.documents.count

                for document in querySnapshot!.documents {
                let d = document.data()



                d.forEach({ (key: String, value: Any) in



                Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

                self.cardViewModels.append(user.toCardViewModel())

                if self.cardViewModels.count == dc {
                self.setupDummyCards()
                }
                })

                })



                }

                }
                }

                }





                share|improve this answer















                i just got documents.count and then only called the self.setupDummyCards() once documents.count was equal to cardViewModels.count



                   fileprivate func fetchUsersFromFirestore() {
                guard let uid = Auth.auth().currentUser?.uid else { return }
                Firestore.firestore().collection("Users").document(uid).collection("Following").getDocuments() { (querySnapshot, err) in
                if let err = err {
                print("Error getting documents: (err)")
                } else {

                let dc = querySnapshot?.documents.count

                for document in querySnapshot!.documents {
                let d = document.data()



                d.forEach({ (key: String, value: Any) in



                Database.firestorefetchUserForTinderCardWithUID(uid: key, completion: { (user) in

                self.cardViewModels.append(user.toCardViewModel())

                if self.cardViewModels.count == dc {
                self.setupDummyCards()
                }
                })

                })



                }

                }
                }

                }






                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Nov 24 '18 at 8:21

























                answered Nov 23 '18 at 9:26









                robbieboy888robbieboy888

                277




                277
































                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53443567%2fswift-firestore-appending-users-to-array-completion-block%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    這個網誌中的熱門文章

                    Tangent Lines Diagram Along Smooth Curve

                    Yusuf al-Mu'taman ibn Hud

                    Zucchini