Variables Not Updated Swift 5, SwiftUI, Firebase

Question

In my UserViewModel, I have a passwordreset function. This works, but I want it to return to my mainview information about the error, or if it was successful. Sadly just the default values are returned, and then the values get updated in the function itself, after the fact.

    func passwordResetRequest(_ email: String) -> (successful: Bool, errorMsg: String) {
        var status = false
        var errorMessage = "0"
        Auth.auth().sendPasswordReset(withEmail: email) { error in
            if error != nil {
                errorMessage = error?.localizedDescription ?? "unknown error"
                print("In UserViewModel.PasswordResetRequest(): \(errorMessage)")
                status = false
            } else {
                print("success")
                status = true
            }
        }
        return (status,errorMessage)
    }

Here is the code from the view :

VStack(spacing: 13){
                HStack(spacing: 0) {
                    Text("Forget your password? ")
                    Button(action: {
                        let result = user.passwordResetRequest(email)
                        print(result)
                        if (result.successful) {
                            showingResetPasswordAlert = true
                        } else {
                            self.errorMsg = result.errorMsg
                            print(result.errorMsg)
                            print(errorMsg)
                            print("from button^")
                            showingErrorMsg = true
                        }

                    }, label: {
                        Text("Reset Password")
                            .font(.callout)
                            .foregroundColor(.black)
                            .bold()
                    }).alert(isPresented: $showingResetPasswordAlert) {
                        Alert(title: Text("Important message"), message: Text("Password Reset Email will be sent to \(email)"), dismissButton: .default(Text("Got it!")))
                    }
                    .alert(isPresented: $showingErrorMsg) {
                        Alert(title: Text("Important message"), message: Text("Error: \(self.errorMsg) occured during the password reset for the email:  \(email)"), dismissButton: .default(Text("Got it..")))
                    }
                }

Here is the console output:

(successful: false, errorMsg: "0")
0
0
from button^
In UserViewModel.PasswordResetRequest(): An email address must be provided.

So, the problem is line 6 of the passwordResetRequest doesn't seem to be working, or it seems that the return statement is being called before this block runs.

workingdog support Ukraine · Accepted Answer · 2021-07-03 04:13:01Z

1

Your function passwordResetRequest is returning immediately with, status = false and errorMessage = "0". passwordResetRequest is an async function, so try something like this:

func passwordResetRequest(email: String,
                          onSuccess: @escaping() -> Void,
                          onError: @escaping(_ errorMessage: String) -> Void) {
    
    Auth.auth().sendPasswordReset(withEmail: email) { error in
        if error != nil {
            onError(error!.localizedDescription)
        } else {
            onSuccess()
        }
    }
}

and call it like this in your Button action:

        passwordResetRequest(email: email, onSuccess: {
            print("---> onSuccess")
        }) { error in
            print("---> error: \(error)")
        }

edited Jul 3, 2021 at 4:13

answered Jul 3, 2021 at 3:25

workingdog support Ukraine

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1 Comment

MacInnis Over a year ago

For the call on the button I used: Button(action: { user.passwordResetRequest(email, onSuccess: { showingResetPasswordAlert = true }, onError: { err in self.errorMsg = err print(errorMsg) showingErrorMsg = true } ) }

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