CODEWITHSUNDEEP
iosswiftfirebaseuitableviewgoogle-cloud-firestore
mick1996
mick1996

Reputation: 606

Populate a TableView with data from a Firestore

I am having trouble with populating my table view. When I run this code it does not populate the table view at all. I am sure it is retrieving the data from firebase.

    var restaurants: [Restaurants] = []

override func viewDidLoad() {
        super.viewDidLoad()

        videos = fetchData()
        configureTableView()
    }

here is my extension function:

extension RestaurantViewController {
    func fetchData() -> [Restaurants]{

        let db = Firestore.firestore()
        db.collection("Restaurants").getDocuments { (snapshot, err) in

            if let err = err {
                print("Error getting documents: \(err)")
                return
            } else {
                for document in snapshot!.documents {

                    let name = document.get("Name") as! String

                    print("Name: ",name)
                    let restaurant1 = Restaurants(title: name)

                    self.restaurants.append(restaurant1)

                }

            }
        }

        return restaurants

    }

I probably missing something simple, please assist

Thanks!

Upvotes: 1

Views: 408

Answers (1)

Dan Abnormal
Dan Abnormal

Reputation: 1208

Try something like this instead

func fetchData(completion: @escaping (Bool) -> ()){

    let db = Firestore.firestore()
    db.collection("Restaurants").getDocuments { (snapshot, err) in

        if let err = err {
            print("Error getting documents: \(err)")
            completion(false)
        } else {
            for document in snapshot!.documents {

                let name = document.get("Name") as! String

                print("Name: ",name)
                let restaurant1 = Restaurants(title: name)

                self.restaurants.append(restaurant1)

            }

            completion(true)
        }
    }
}

In your viewDidLoad:

fetchData { (done) in

    if done {
        configureTableView()
    } else {
        // Handle this somehow
    }
}

Upvotes: 3

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