I am trying to do the Extra Credit task for Ribbit. I got a bug and i cannot figure out how to resolve it.

Once I tap on a friend, i log into the console the user id, from didSelectRow, then I assign this value to userID property that is part of the ProfileViewController, once I try to log it into the console the first time i always get (null) and if i go back and tap again i get the value of userID. And if i try to tap on another user then the first NSLog from didSelectRowAtIndex prints out the correct objectId but when I try to print it from my ProfileViewController I get the objectID of the friend that I had previously tapped on. (e.g. I always get one step behind when I try to print the objectId from ProfileViewController)

Here is my FriendsViewController.h

@property (nonatomic, strong) PFRelation *friendsRelation; @property (nonatomic, strong) NSArray *friends; @property (nonatomic, strong) NSString *selectedUserID;

FriendsVIewController.m

• (void)viewDidLoad { [super viewDidLoad];

  self.friendsRelation = [[PFUser currentUser] objectForKey:@"friendsRelation"]; PFQuery *query = [self.friendsRelation query]; [query orderByAscending:@"username"]; [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { if (error) { NSLog(@"Error %@ %@", error, [error userInfo]); } else{ self.friends = objects; [self.tableView reloadData]; } }]; }

• (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

  [self.tableView deselectRowAtIndexPath:indexPath animated:NO];

  // get the user that was tapped on PFUser *user = [self.friends objectAtIndex:indexPath.row]; self.selectedUserID = user.objectId; NSLog(@"user tapped on ID:%@",self.selectedUserID); }

• (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{ if ([segue.identifier isEqualToString:@"showEditFriends"]){ EditFriendsTableViewController *viewController = (EditFriendsTableViewController *)segue.destinationViewController; viewController.friends = [NSMutableArray arrayWithArray:self.friends]; } else if ([segue.identifier isEqualToString:@"showProfileView"]){

  ProfileViewController *viewController = (ProfileViewController *)segue.destinationViewController;
  viewController.userID = self.selectedUserID;
  

  } }

ProfileViewController.h

@property (nonatomic, strong) NSString *userID; @property (nonatomic, strong) NSString *test; @property (nonatomic, strong) NSArray *userDetails; @property (weak, nonatomic) IBOutlet UILabel *usernameLabel; @property (weak, nonatomic) IBOutlet UILabel *nameLabel; @property (weak, nonatomic) IBOutlet UILabel *locationLabel; @property (weak, nonatomic) IBOutlet UILabel *mobileLabel;

ProfileViewController.m

• (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view NSLog(@"user id: %@", self.userID);

  PFQuery *query = [PFUser query];
  [query whereKey:@"objectId" equalTo:self.userID];
  self.userDetails = [query findObjects];
  NSLog(@"array %@", girls);
  self.usernameLabel.text = self.userID;
  

  }