Xcode forgot password Parse - ios

Question

- (IBAction)forgotPassword:(id)sender {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Direccion de Correo" message:#"Introduzca su correo electronico:" delegate:self cancelButtonTitle:#"Cancelar" otherButtonTitles:#"Aceptar", nil];
alertView.alertViewStyle = UIAlertViewStylePlainTextInput;
[alertView show];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
if(buttonIndex ==1){
NSLog(#"ok button clicked in forgot password alert view");
NSString *email=[alertView textFieldAtIndex:0].text;
if ([email isEqualToString:#"email"]) {
UIAlertView *display;
display=[[UIAlertView alloc] initWithTitle:#"Email" message:#"Please enter password for resetting password" delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles: nil];
[display show];
}else{
[PFUser requestPasswordResetForEmailInBackground:email block:^(BOOL succeeded, NSError *error) {
UIAlertView *display;
if(succeeded){
display=[[UIAlertView alloc] initWithTitle:#"Correo electronico enviado" message:#"Por favor, revise su correo para resetear contraseña" delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles: nil];
}else{
display=[[UIAlertView alloc] initWithTitle:#"Correo fallido" message:#"el correo electronico no coincide con ninguno en la base de datos" delegate:nil cancelButtonTitle:#"Cancel" otherButtonTitles: nil];
}
[display show];
}];
}
}
}

Answer 1

Why you are going for multiple queries first to find User details if found send ResetPasswordRequest instead use completion handler for Reset Request.
[PFUser requestPasswordResetForEmailInBackground:self.txtEmail.text block:^(BOOL succeeded,NSError *error)
{
if (!error) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:kAlertTitle message:[NSString stringWithFormat: #"Link to reset the password has been send to specified email"] delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil];
[alert show];
return;
}
else
{
NSString *errorString = [error userInfo][#"error"];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:kAlertTitle message:[NSString stringWithFormat: #"Password reset failed: %#",errorString] delegate:nil cancelButtonTitle:#"Ok" otherButtonTitles:nil];
[alert show];
return;
}
}];
If user is not present Parse will respond with an error "Error: no user found with email xxxxxxxxx#xxx.com"
Regards,
Amit

Answer 2

In your below code,
//Here you fire the query to check for email address in your parse backend
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) { //If no error in your query then will enter below block
//the objects is array of object it gets from your parse but in your case it return's zero which implies that there is no object with that email in your parse db.
if (objects.count ==0) {
//As objects.count is zero that means no email exist so in that case you don't send email for password recovery and show a alert as below to user that email is invalid(meaning not exist)
UIAlertView *alertView =[[UIAlertView alloc]initWithTitle:#"Correo enviado" message:#"Por favor, revise su correo para resetear su contraseña" delegate:self cancelButtonTitle:#"Cancelar" otherButtonTitles:nil];
[alertView show];
} else {
//In this, else case will enter when there is objects.count greater than zero which means that email exist on db. So, in that case you would request for password recovery as below.
//Also could show a alert to let user know that request for password recovery was sent successfully.
[self sendEmail:emailTextField.text];
//the query was successful, but found 0 results
//email does not exist in the database, dont send the email
//show your alert view here
}
} else {
NSLog(#"Error: %# %#", error, [error userInfo]);
}
}];
Why are again checking condition(objects == nil) as your doing in first condition(object.count == 0). Both are same so no point in showing alert for one reason. Also I ran your code and I was getting one alert to enter some text followed by a alert with title "Correo enviado".
If I misunderstand your query or anything else then please let me know.