@IBAction func signupOrLogin(_ sender: AnyObject) {

        if usernameTextField.text == "" {

            self.createAlert(title: "Username required", message: "Please enter a username")

        } else {

            PFUser.logInWithUsername(inBackground: usernameTextField.text!, password: usernameTextField.text!, block: { (user, error) in

                if error != nil {

                    let user = PFUser()

                    user.username = self.usernameTextField.text!
                    user.password = self.usernameTextField.text!
                    //user.email = self.usernameTextField.text! + "@snapchat.com"

                    user.signUpInBackground(block: { (success, error) in

                        if let error = error as? NSError {

                            var displayErrorMessage = "Please try again!"

                            if let errorMessage = error.userInfo["error"] as? String {

                                displayErrorMessage = errorMessage

                            }

                            self.createAlert(title: "Error in Signup", message: displayErrorMessage)

                        } else {

                            self.performSegue(withIdentifier: "showUserTable", sender: self)

                        }

                    })

                } else {

                    print("LOGGED IN!!!!")

                    self.performSegue(withIdentifier: "showUserTable", sender: self)

                    //PFUser.logInWithUsername(inBackground: usernameTextField.text!, password: usernameTextField.text!)

                }

            })

        }

    }