Issue parsing JSON image url - ios

Question

I am trying to parse a JSON image url and display it in a view. I have no trouble getting the image url and converting it to UIImage. When the user selects a row in the tableview a new view is presented and displays the image from the url. The issue is that the image is different every time the view loads. I NSLog the url and it is the same every time I select the row. I can not see where I am going wrong here.
This is the view that gets the image url and converts it to an image:
// ViewController.m
#import "ViewController.h"
#import "DetailViewController.h"
#interface ViewController ()
#end
#implementation ViewController
...
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
//imgURL = [imgURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *imageUrl = [NSURL URLWithString:[[_model.bars objectAtIndex:indexPath.row] objectForKey:#"image_url"]];
//NSLog(#"%#", imageUrl);
UIImage *barImage = [UIImage imageWithData:[NSData dataWithContentsOfURL:imageUrl]];
NSLog(#"%#", imageUrl);
_model.barAddress = [NSString stringWithFormat: #"%# %# %#", [[_model.bars objectAtIndex:indexPath.row] objectForKey:#"address"],
[[_model.bars objectAtIndex:indexPath.row] objectForKey:#"state"],
[[_model.bars objectAtIndex:indexPath.row] objectForKey:#"zip"]];
_detailData.selectedBarName = [[_model.bars objectAtIndex:indexPath.row] objectForKey:#"name"];
_detailData.selectedBarAddress = _model.barAddress;
_detailData.selectedBarPhoneNumber = [[_model.bars objectAtIndex:indexPath.row] objectForKey:#"phone"];
_detailData.selectedBarImage = barImage;
NSLog(#"%#", _detailData.selectedBarImage);
if ([[segue identifier] isEqualToString:#"detailSeg"]) {
DetailViewController *controller = (DetailViewController *)segue.destinationViewController;
controller.barNameObject = _detailData.selectedBarName;
controller.barAddressObject = _detailData.selectedBarAddress;
controller.barPhoneNumberObject = _detailData.selectedBarPhoneNumber;
controller.barImageObject = _detailData.selectedBarImage;
NSLog(#"%#", controller.barImageObject);
}
}
#end
This is the view that displays the image.
// DetailViewController.m
#import "DetailViewController.h"
#import "DetailViewData.h"
#interface DetailViewController ()
#end
#implementation DetailViewController
- (void)viewDidLoad {
[super viewDidLoad];
//_detailData = [[DetailViewData alloc] init];
_model = [[Model alloc] init];
// Do any additional setup after loading the view from its nib.
_barName.text = self.barNameObject;
_barAddress.text = self.barAddressObject;
_barPhone.text = self.barPhoneNumberObject;
_barPhoto.image = self.barImageObject;
}

Answer 1

Your code is absolutely correct.
So, I checked the web service response. If you check any of the image_URl
say http://lorempixel.com/900/500/sports/?v=-417059871 , it is loading different images all the time. I think the issue is not in your code but in the url, just paste it in your browser and refresh, each time it loads different images.
I wanted to add this as a comment but I don't have enough reputation as of now.