Mariah Mariah - 2 months ago 51
iOS Question

Handling Errors in New Firebase and Swift

I'm trying to add error handling in creating user button in iOS project using swift and firebase:

Here's the code for the button:

@IBAction func Register(sender: AnyObject) {

if NameTF.text == "" || EmailTF.text == "" || PasswordTF.text == "" || RePasswordTF == "" || PhoneTF.text == "" || CityTF.text == ""
{
let alert = UIAlertController(title: "عذرًا", message:"يجب عليك ملىء كل الحقول المطلوبة", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "نعم", style: .Default) { _ in })
self.presentViewController(alert, animated: true){}

} else {

if PasswordTF.text != RePasswordTF.text {
let alert = UIAlertController(title: "عذرًا", message:"كلمتي المرور غير متطابقتين", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "نعم", style: .Default) { _ in })
self.presentViewController(alert, animated: true){}

} else {


FIRAuth.auth()?.createUserWithEmail(EmailTF.text!, password: PasswordTF.text!, completion: { user, error in
print(error)

if error != nil {

let errorCode = FIRAuthErrorNameKey

switch errorCode {
case "FIRAuthErrorCodeEmailAlreadyInUse":
let alert = UIAlertController(title: "عذرًا", message:"الإيميل مستخدم", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "نعم", style: .Default) { _ in })
self.presentViewController(alert, animated: true){}

case "FIRAuthErrorCodeUserNotFound":
let alert = UIAlertController(title: "عذرًا", message:"المستخدم غير موجود", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "نعم", style: .Default) { _ in })
self.presentViewController(alert, animated: true){}

case "FIRAuthErrorCodeInvalidEmail":
let alert = UIAlertController(title: "عذرًا", message:"الإيميل غير صحيح", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "نعم", style: .Default) { _ in })
self.presentViewController(alert, animated: true){}

case "FIRAuthErrorCodeNetworkError":
let alert = UIAlertController(title: "عذرًا", message:"خطأ في الاتصال بالانترنت", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "نعم", style: .Default) { _ in })
self.presentViewController(alert, animated: true){}

default:
let alert = UIAlertController(title: "عذرًا", message:"خطأ غير معروف", preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "نعم", style: .Default) { _ in })
self.presentViewController(alert, animated: true){}



}


} else {

FIRAuth.auth()?.signInWithEmail(self.EmailTF.text!, password: self.PasswordTF.text!, completion: { (user: FIRUser?, error: NSError?) in
if let error = error {
print(error.localizedDescription)
} else {

self.ref.child("UserProfile").child(user!.uid).setValue([
"email": self.EmailTF.text!,
"name" : self.NameTF.text!,
"phone": self.PhoneTF.text!,
"city" : self.CityTF.text!,
])
print("Sucess")
// self.performSegueWithIdentifier("SignUp", sender: nil)

}
})

} //else
})

} //Big else


} //Big Big else
}


}//end of


I'm not sure if the syntax of the errors in switch statement is correct or not!

Because when I tested it in the simulator it always gives me the defualt case which is unknown error!
+
I could not find the syntax in the documentation:
https://firebase.google.com/docs/auth/ios/errors

So, What's the correct syntax to add error handling using new firebase and swift!

Answer

FIRAuthErrorCode is an int enum not a string enum. Do the following:

              if let error = error {
                switch FIRAuthErrorCode(rawValue:error.code)! {
                case .ErrorCodeInvalidEmail:

More info in this answer.