Why is this object not being added to this array?

Question

I have a method that generates a PFObject and stores it in an NSMutableArray. Then a tableview populates itself with this array. However, the method that stores the PFObject is not successfully adding the object. Here is the method:

- (void)addListing{
    PFObject* userListing = [PFObject objectWithClassName:@"userListing"];
    [userListing setObject:[NSString stringWithFormat:@"John Smith"] forKey:@"userName"];
    [userListing setObject:[NSString stringWithFormat:@"408 521 3322"] forKey:@"userPhoneNumber"];
    [userListing setObject:[NSString stringWithFormat:@"Lorem Ipsum Dolor Sit Amet"] forKey:@"listingName"];
    [userListing setObject:[NSString stringWithFormat:@"$10"] forKey:@"listingPrice"];

    [listings addObject:userListing]; 
    [userListing saveInBackground];

    NSLog(@"%i", listings.count);
}

On that last line, I have the console print the amount of objects that are stored in listings but it repeatedly prints zero. Where am I going wrong?

Are you certain that listings is non-nil when this method is called? nil would also respond with 0 for a count method call. — OC Rickard
– OC Rickard, Commented Jul 29, 2013 at 0:15
Yep, almost certainly you never created the array for listings. — Hot Licks
– Hot Licks, Commented Jul 29, 2013 at 0:28
Understand that setObject on a nil pointer will quietly no-op, and count will return zero. — Hot Licks
– Hot Licks, Commented Jul 29, 2013 at 0:29

Andrew · Accepted Answer · 2013-07-29 00:15:02Z

3

Make sure you are initializing the array.

listings = [[NSMutableArray alloc] init];

answered Jul 29, 2013 at 0:15

Andrew

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