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maytelabargamalaga
Courses Plus Student 6,465 PointsIOS Reset Password using Parse
I am trying to create am Alert View that let you introduce your email con compare with Parse. Finally when result is succeded parse send you an email giving you the positibility to rest your password.
Here is my code
`- (IBAction)contraseña:(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 != [alertView cancelButtonIndex]) { UITextField *emailTextField = [alertView textFieldAtIndex:0];
PFQuery *query = [PFUser query]; [query whereKey:@"email" equalTo:self.emailTextField.text]; [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { if (!error) { // The find succeeded. if (objects.count > 0) { //the query found a user that matched the email provided in the text field, send the email [self sendEmail:emailTextField.text]; } else { //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 { // Log details of the failure NSLog(@"Error: %@ %@", error, [error userInfo]); } }];
}
- (void)sendEmail:(NSString *)email{ [PFUser requestPasswordResetForEmailInBackground:email];
}
My problem exactly is that sendEmail needs to declared identifier. What is that? What I need to do?
Thanks indeed Mayte
5 Answers
maytelabargamalaga
Courses Plus Student 6,465 PointsHello Stone. Thanks you so much for your answer. Now I write you the error from Console:
''' 2014-09-07 16:03:36.871 pedidos[824:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Cannot do a comparison query for type: (null)' '''
maytelabargamalaga
Courses Plus Student 6,465 PointsDo you have any idea about it?
maytelabargamalaga
Courses Plus Student 6,465 PointsThanks in advance
Stone Preston
42,016 Pointsthe problem is you are referencing self.emailTextField.text. you most likely dont have a property called emailTextField, you just created a local text field variable. change it from self.emailTextField to just emailTextField
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
if (buttonIndex != [alertView cancelButtonIndex]) {
//here is where you declare the local text field
UITextField *emailTextField = [alertView textFieldAtIndex:0];
PFQuery *query = [PFUser query];
//reference the local text field here
[query whereKey:@"email" equalTo:emailTextField.text];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
// The find succeeded.
if (objects.count > 0) {
//the query found a user that matched the email provided in the text field, send the email
[self sendEmail:emailTextField.text];
} else {
//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 {
// Log details of the failure
NSLog(@"Error: %@ %@", error, [error userInfo]);
}
}];
}
maytelabargamalaga
Courses Plus Student 6,465 PointsHello Stone. Now I have most that I need but I find one problem. I am not sure where I need to put the AlertView. I want to have two. One that say: "Ok. We send you an email to reset the password" and the other: " email not found". I do the first but the second I can not so it.
''
-
(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex ==1) { UITextField *emailTextField = [alertView textFieldAtIndex:0];
PFQuery *query = [PFUser query]; [query whereKey:@"email" equalTo:self.emailTextField.text]; [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { if (!error) { // The find succeeded. if (objects.count == 0) { //the query found a user that matched the email provided in the text field, send the email [self sendEmail:emailTextField.text]; 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 { UIAlertView *alertView =[[UIAlertView alloc]initWithTitle:@"Correo no encontrado" message:@"Por favor, introduzca un correo electronico valido" delegate:self cancelButtonTitle:nil otherButtonTitles:@"Aceptar", nil]; [alertView show]; } } else { // Log details of the failure NSLog(@"Error: %@ %@", error, [error userInfo]); } }];
} }
''
maytelabargamalaga
Courses Plus Student 6,465 PointsThanks once again Stone. The last question. I have create this property that you have told. I found a problem. This property is empty because I need to join it to email text label that I have already create in SiginView Controller. I am working in LoginViewController. How can I join this information.
Thanks indeed.
Mayte
Stone Preston
42,016 PointsStone Preston
42,016 Pointscan you post the error/warning you are getting. everything looks good to me a a quick glance