Tableview e firebase

//
//  AziendeVC.swift
//  coupon
//
//  Created by MacBook Pro on 19/02/18.
//  Copyright © 2018 adriano lomonaco. All rights reserved.
//

import UIKit
import FirebaseDatabase

class AziendeVC: UIViewController, UITableViewDelegate, UITableViewDataSource{
    var Aziende: [Azienda] = []

    @IBOutlet var tableView: UITableView!

    override func viewDidLoad() {
        super.viewDidLoad()

        tableView.delegate = self
        tableView.dataSource = self
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        self.observeAllValue()
        self.observeChildAdded()
    }


    @IBOutlet weak var Label: UILabel!
    func observeAllValue() {
        let root = Database.database().reference()

        root.child("Abbigliamento").observe(.value, with: { (snap) in

            guard let dictionary = snap.value as? [String : Any] else {
                return
            }
            print("OAV le aziende nel database sono " + "\(dictionary.count)")
            print(dictionary.count)

            var aziendaArray: [Azienda] = []
            self.Label.text = "prima del for"
            for element in dictionary {
                print("sono entrato nel for")
                print("element =" + "\(element)")//stampa:(key: "salsiccia", value: buona)
                print("element =" + "\(element.value)")//stampa: element = buona
                self.Label.text = "dentro il for" //stampa nell'App
                guard
                    let value = element.value as? [String : String],
                    let name = value["Azienda2"]
                    else {
                            return
                         }
                print("value2 =" + "\(value)")//non arriva qui
                self.Label.text = "dopo il for"
                let azienda = Azienda(Azienda2: name)
                aziendaArray.append(azienda)
                print("aziendaArray. count = " + "\(aziendaArray.count)")
            }

            self.Aziende = aziendaArray
            self.tableView.reloadData()
        })
    }

    func observeChildAdded() {
        let root = Database.database().reference()
        print("\n \n")
        root.child("Abbigliamento").observe(.childAdded, with: { (snap) in

            guard
                let dictionary = snap.value as? [String : String],
                let name = dictionary["Azienda"]
                else { return }

            let azienda = Azienda(Azienda2: name)
            self.Aziende.append(azienda)
            let count = self.Aziende.count
            print("CA le aziende nel database sono " + "\(count)")
            let indexPath = IndexPath.init(row: count-1, section: 0)
            self.tableView.beginUpdates()
            self.tableView.insertRows(at: [indexPath], with: .left)
            self.tableView.endUpdates()
        })
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return Aziende.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
        let user = Aziende[indexPath.row]
        cell.textLabel?.text = user.Azienda2
        return cell
    }

}