Pass parse.com cloud backend data from TableView to DetailViewController - ios

Question

I have a problem with my parse backend app.
On Parse I have a Class like this: name (string) , imageFile (File) and help (string).
Everything works great except the Images. When I tap on a cell, I am pushed to the DetailViewController the 2 Strings appear but the ImageView (PFImageView) is empty. The ImageView does not show my Images.
Maybe there is a problem with passing the image file?
Here is my code:
MechanikViewController.h:
#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#interface MechanikViewController : PFQueryTableViewController
#end
MechanikViewController.m:
#import "MechanikViewController.h"
#import "MechanikDetailViewController.h"
#import "Mechanik.h"
#interface MechanikViewController ()
#end
#implementation MechanikViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
-(id)initWithCoder:(NSCoder *)aCoder
{
self = [super initWithCoder:aCoder];
if (self) {
self.parseClassName = #"Mechanik";
self.textKey = #"name";
self.pullToRefreshEnabled = YES;
self.paginationEnabled = NO;
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
}
-(PFQuery *)queryForTable
{
PFQuery *query = [PFQuery queryWithClassName:self.parseClassName];
if ([self.objects count] == 0) {
query.cachePolicy = kPFCachePolicyCacheThenNetwork;
}
[query orderByAscending:#"name"];
return query;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object
{
static NSString *simpleTableIdentifier = #"MechanikCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [object objectForKey:#"name"];
return cell;
}
- (void) objectsDidLoad:(NSError *)error
{
[super objectsDidLoad:error];
NSLog(#"error: %#", [error localizedDescription]);
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"showDetail"]) {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
MechanikDetailViewController *destViewController = segue.destinationViewController;
PFObject *object = [self.objects objectAtIndex:indexPath.row];
Mechanik *mechanik = [[Mechanik alloc] init];
mechanik.name = [object objectForKey:#"name"];
mechanik.imageFile = [object objectForKey:#"imageFile"];
mechanik.help = [object objectForKey:#"help"];
destViewController.mechanik = mechanik;
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
#end
MechanikDetailViewController.h:
#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#import "Mechanik.h"
#interface MechanikDetailViewController : UIViewController
#property (weak, nonatomic) IBOutlet PFImageView *formelImage;
#property (weak, nonatomic) IBOutlet UILabel *helpLabel;
#property (nonatomic, strong) Mechanik *mechanik;
#end
MechanikDetailViewController.m:
#import "MechanikDetailViewController.h"
#interface MechanikDetailViewController ()
#end
#implementation MechanikDetailViewController
#synthesize formelImage;
#synthesize helpLabel;
#synthesize mechanik;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.title = mechanik.name;
self.helpLabel.text = mechanik.help;
self.formelImage.file = mechanik.imageFile;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
#end
Mechanik.h:
#import <Foundation/Foundation.h>
#import <Parse/Parse.h>
#interface Mechanik : NSObject
#property (nonatomic, strong) NSString *name;
#property (nonatomic, strong) PFFile *imageFile;
#property (nonatomic ,strong) NSString *help;
#end
Mechanik.m:
#import "Mechanik.h"
#implementation Mechanik
#synthesize name;
#synthesize imageFile;
#synthesize help;
#end
Please help me.

Answer 1

Create a PFObject in DetailViewController
#property (nonatomic, strong)PFObject *object
Pass a PFObject from master to detail
PFObject *object = [self.objects objectAtIndex:indexPath.row];
destViewController.object = object;
Set data in ViewDidAppear
pfImageView.imageFile = [object objectForKey:#"imageFile"];
[pfImageView loadInBackground];