need help part 2 inbox

//
//  inboxViewController.m
//  Ribbit
//
//  Created by kai don aldag on 2013-08-09.
//  Copyright (c) 2013 kai.don.aldag. All rights reserved.
//

#import "inboxViewController.h"
#import <Parse/Parse.h>

@interface inboxViewController ()

@end

@implementation inboxViewController



- (void)viewDidLoad
{
    [super viewDidLoad];
    PFUser *currentUser = [PFUser currentUser];
    if (currentUser) {
        NSLog(@"current user: %@", currentUser.username);
    }
    else{
        [self performSegueWithIdentifier:@"showLogin" sender:self];
    }


}

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];


    PFQuery *query = [PFQuery queryWithClassName:@"Messages"];
    [query whereKey:@"recipientsIds" equalTo:[[PFUser currentUser]objectId]];
    [query orderByDescending:@"createdAt"];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
        if (error){
            NSLog(@"Error: %@ %@", error, [error userInfo]);
        }else{
            self.messages = objects;
            [self.tableView reloadData];

            NSLog(@"retrieved %d messages", [self.messages count]);
        }
    }];

}



#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [self.messages count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

    // Configure the cell...
    PFObject *messages = [self.messages objectAtIndex:indexPath.row];

    cell.textLabel.text = [messages objectForKey:@"senderName"];

    return cell;
}

#pragma mark - Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    // Navigation logic may go here. Create and push another view controller.
    /*
     <#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
     // ...
     // Pass the selected object to the new view controller.
     [self.navigationController pushViewController:detailViewController animated:YES];
     */
}

- (IBAction)logout:(id)sender {
    [PFUser logOut];
    [self performSegueWithIdentifier:@"showLogin" sender:self];
}

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
    if ([segue.identifier isEqualToString:@"showLogin"]) {
        [segue.destinationViewController setHidesBottomBarWhenPushed:YES];
    }
}

@end