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General Discussion

Posted by Natacha S
Natacha S
11,561 Points

HELLLP with frustrating code challenge

I have posted this before but didn't get any help to complete the challenge....so there we go again : Here's the link to the challenge: http://teamtreehouse.com/library/logging-in-and-logging-out. And here's my code:

#import "MainViewController.h"
#import "LoginViewController.h"
#import <Parse/Parse.h>
@implementation MainViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    PFUser *currentUser =[PFUser currentUser];
    if ([currentUser logOut]){
    [self performSegueWithIdentifier:@"showLogin" sender:self];};
};

- (IBAction)logOut:(id)sender {

    [self performSegueWithIdentifier:@"showLogin" sender:self];
}

@end

I have no idea what i m doing wrong and i don't really understand the question, can someone help me ?

2 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

It asks for you to have an if statement that performs the segue only if a user is not logged in. So your first line where you get the current user is correct 

PFUser *currentUser = [PFUser currentUser];

However your if statement conditional is wrong. If the user is logged in, your PFUser object will hold a value, if not, it will be nil. Since we want the segue to be performed when a user is NOT logged in, you could put simply 

if (currentUser == nil) { //perform segue here }
Natacha S
Natacha S
11,561 Points
Natacha S
Natacha S
11,561 Points

Thank you so much ! For some reason i thought [currentUser logOut] would be equivalent to (currentUser == nil)