Écrasement lorsqu'aucune image n'est téléchargée vers Firebase

Question

Lorsque j'appuie sur le bouton d'inscription sans télécharger d'image, je reçois un plantage. Si je télécharge une photo sans remplir le reste de textFields, je reçois une alerte contextuelle. Comment puis-je obtenir la même alerte lorsqu'aucune photo n'est téléchargée? L'erreur que je reçois est

erreur fatale: de façon inattendue trouvé nulle en déballant une valeur facultative

@IBAction func signUpAction(_ sender: Any) { 
    let email = emailTextField.text!.lowercased() 
    let finalEmail = email.trimmingCharacters(in: .whitespacesAndNewlines) 
    let location = locationTextField.text! 
    let biography = biographyTextField.text! 
    let username = usernameTextField.text! 
    let password = passwordTextField.text! 
    let firstLastName = firstLastNameTextField.text! 
    let pictureData = UIImageJPEGRepresentation(self.userImageView.image!, 0.70) 

    if finalEmail.isEmpty || location.isEmpty || biography.isEmpty || username.isEmpty || password.isEmpty { 
     self.view.endEditing(true) 
     let alertController = UIAlertController(title: "OOPS", message: " You must fill all the fields", preferredStyle: .alert) 
     alertController.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil)) 
     present(alertController, animated: true, completion: nil) 

    }else { 
     self.view.endEditing(true) 
     authService.signUP(username: username, email: finalEmail, location: location, biography: biography, password: password, pictureData: pictureData as NSData!) 

    } 


} 

    var authService = AuthService() 



struct AuthService{ 

var dataBaseRef: DatabaseReference!{ 
    return Database.database().reference() 
} 
var storageRef: StorageReference!{ 
    return Storage.storage().reference() 
} 

func signUP(username: String, email: String, location: String, biography: String, password: String, pictureData: NSData!) { 

    Auth.auth().createUser(withEmail: email, password: password) { (user, error) in 
     if error == nil{ 

      self.setUserInfo(user: user, username: username, location: location, biography: biography, password: password, pictureData: pictureData) 

     }else{ 
      print(error?.localizedDescription) 
     } 
    } 


} 

private func setUserInfo(user: User!, username: String, location: String, biography: String, password: String, pictureData: NSData!){ 

    let imagePath = "profileImage\(user.uid)/userPic.jpg" 
    let imageRef = storageRef.child(imagePath) 

let metaData = StorageMetadata() 
    metaData.contentType = "image/jpeg" 
    imageRef.putData(pictureData as Data, metadata: metaData){(newMetaData, error) 
     in 
     if error == nil{ 
      let changeRequest = user.createProfileChangeRequest() 
      changeRequest.displayName = username 
      if let photoURL = newMetaData!.downloadURL(){ 
       changeRequest.photoURL = photoURL 

      } 
      changeRequest.commitChanges(completion: { (error) in 
       if error == nil{ 

        self.saveUserInfo(user: user, username: username, location: location, biography: biography, password: password) 

        print("user info set") 

       }else{ 
        print(error?.localizedDescription) 
       } 
      }) 

     }else{ 
      print(error?.localizedDescription) 
     } 

    } 

} 

private func saveUserInfo(user: User!, username: String, location: String, biography: String, password: String){ 

    let userInfo = ["email": user.email!, "username": username, "location": location, "biography": biography, "uid": user.uid, "photoURL": String(describing: user.photoURL!)] 

    let userRef = dataBaseRef.child("users").child(user.uid) 
    userRef.setValue(userInfo) { (error, ref) in 
     if error == nil{ 
      print("USER SAVED") 
      self.logIn(email: user.email!, password: password) 
     }else{ 
      print(error?.localizedDescription) 

     } 
    } 

} 

func logIn(email: String, password: String){ 

    Auth.auth().signIn(withEmail: email, password: password) { (user, error) in 
     if error == nil { 
      if let user = user { 
       print("\(user.displayName!) has been signed in") 

       let appDel : AppDelegate = UIApplication.shared.delegate as! AppDelegate 
       appDel.logUser() 

      }else{ 
       print(error?.localizedDescription) 

      } 

     } 
    } 
} 

}

Answer 1

Je pense que vous devez ajouter ceci:

var pictureData: NSData? //Try using Data in your code in swift 

if let imageView = self.userImageView.image { 
    pictureData = UIImageJPEGRepresentation(imageView, 0.70) 
} 

puis ajoutez ce instruction || pictureData == nil après || password.isEmpty dans if déclaration