Value in getPath URL

Question

I use AFnetworking to load locations in the first view of my iOS app:

LocationTableViewController.m

 [[LocationApiClient sharedInstance] getPath:@"locations.json" parameters:nil
     success:^(AFHTTPRequestOperation *operation, id response) {
         NSLog(@"Response: %@", response);
         NSMutableArray *results = [NSMutableArray array];
         for (id locationDictionary in response) {
             Location *location = [[Location alloc] initWithDictionary:locationDictionary];
             [results addObject:location];
             
         }
         self.results = results;
         [self.tableView reloadData];
     }
     failure:^(AFHTTPRequestOperation *operation, NSError *error) {
         NSLog(@"Error fetching locations!");
         NSLog(@"%@", error);
         
     }];

The response from the API is

 {            
        "created_at" = "2013-02-23T19:17:37Z";
        id = 1;
        lat = "51.463842";
        long = "-0.6504559999999628";
        name = Legoland;
        "street_address" = "Winkfield Road, Windsor, United Kingdom";
        "updated_at" = "2013-02-23T19:17:37Z";
    },

I display the name and street_address:

When a user clicks on a location the iOS app segues to the BeerTableViewController. I would like to retrieve the clicked on locations beer list using something like this request.

BeerTableViewController.m

NSString *path = [NSString stringWithFormat:@"locations/%@/beers.json",
    [dictionary objectForKey:@"location_id"]];
    
  [[LocationApiClient sharedInstance] getPath:path parameters:nil
        success:^(AFHTTPRequestOperation *operation, id response) {
            NSLog(@"Response: %@", response);
            NSMutableArray *results = [NSMutableArray array];
            for (id beerDictionary in response) {
                Beer *beer = [[Beer alloc] initWithDictionary:beerDictionary];
                [results addObject:beer];
                
            }
            self.results = results;
            [self.tableView reloadData];
        }
        failure:^(AFHTTPRequestOperation *operation, NSError *error) {
            NSLog(@"Error fetching beers!");
            NSLog(@"%@", error);
            
        }];

I'm not sure how to pass the location_id value from the LocationTableViewController cell when a user clicks it so that it fills the getPath url with the appropriate value. Clicking on location 1 would set the getPath url in BeerTableViewController to @"locations/1/beers.json

The response I get back from this request is

{
        "created_at" = "2013-02-23T19:27:10Z";
        description = Awesome;
        id = 2;
        "location_id" = 1;
        name = Pliny the Elder;
        price = "3.50";
        style = IPA;
        "updated_at" = "2013-02-23T19:27:10Z";
    }

Right now I just get errors in my BeerTableViewController.m request:

Unknown receiver 'dictionary' No known class method for selector 'objectForKey'

NSString *path = [NSString stringWithFormat:@"locations/%@/beers.json",
        [dictionary objectForKey:@"location_id"]];

Should I be setting this up in:

LocationTableViewController.m
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

Answer 1

How about:

NSString *path = [NSString stringWithFormat:@"locations/%@/beers.json",
    [dictionary objectForKey:@"location_id"]];

[[LocationApiClient sharedInstance] getPath:path //....