Display NSSet data from Core Data - ios

Question

I am adding values into 2 entities within my core data model and the problem I am facing is trying to properly retrieve the NSSet and target the associated strings when accessing the detail view.I would simply like to display the results in a uitableview. I believe the values are being correctly added along with the relationships to the entities as I previously got help off the forum for it as viewable here. I am trying to recall the associated RoutinesDetail data on the detail view.
I know the seague is working correctly as I am able to set the title based on the selectedRow, so it is passing the data between view controllers. I can recall 'Routines' data using Ex.routinename
Using the following to debug and try to allocate the NSSet as I read a way to display it was to use allObjects but this didn't work:
NSArray *test= [Ex.routinedet allObjects];
NSSortDescriptor *desc = [[NSSortDescriptor alloc] initWithKey:#"image"
ascending:YES];
test = [test sortedArrayUsingDescriptors:[NSArray arrayWithObject:desc]];
NSLog(#"Image *** %#",test);
This produces the following report which makes me question whether I am doing it right?
"<RoutinesDetails: 0x7453d80> (entity: RoutinesDetails; id: 0x74531f0
<x-coredata://C075DDEC-169D-46EC-A4B7-972A04FCED70/RoutinesDetails/p1>
; data: <fault>)"
)
So basically I am looking at how to retrieve RoutinesDetails. Any suggestions would be greatly appreciated.
**
In case it is needed here is the associated code
**
routines.h - NSManagedObject
#class RoutinesDetails;
#interface Routines : NSManagedObject
#property (nonatomic, retain) id routinename;
#property (nonatomic, retain) NSSet *routinedet;
#end
#interface Routines (CoreDataGeneratedAccessors)
- (void)addRoutinedetObject:(RoutinesDetails *)value;
- (void)removeRoutinedetObject:(RoutinesDetails *)value;
- (void)addRoutinedet:(NSSet *)values;
- (void)removeRoutinedet:(NSSet *)values;
#end
RoutinesDetails.h - NSManagedObject
#class Routines;
#interface RoutinesDetails : NSManagedObject
#property (nonatomic, retain) NSString * image;
#property (nonatomic, retain) NSString * name;
#property (nonatomic, retain) Routines *routineinfo;
#end
FBCDRoutineDetailViewController(sorry if its too much code)
#import "FBCDRoutineDetailViewController.h"
#import "FBCDRoutineViewController.h"
#import "Routines.h"
#import "RoutinesDetails.h"
#interface FBCDRoutineDetailViewController ()
#end
#implementation FBCDRoutineDetailViewController
#synthesize managedObjectContext;
#synthesize fetchedResultsController = _fetchedResultsController;
#synthesize Ex;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (NSFetchedResultsController *)fetchedResultsController {
if (_fetchedResultsController != nil) {
return _fetchedResultsController;
}
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription
entityForName:#"RoutinesDetails" inManagedObjectContext:managedObjectContext];
[fetchRequest setEntity:entity];
NSSortDescriptor *sort = [[NSSortDescriptor alloc]
initWithKey:#"name" ascending:NO];
[fetchRequest setSortDescriptors:[NSArray arrayWithObject:sort]];
[fetchRequest setFetchBatchSize:20];
NSFetchedResultsController *theFetchedResultsController =
[[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest
managedObjectContext:managedObjectContext sectionNameKeyPath:nil
cacheName: nil];
self.fetchedResultsController = theFetchedResultsController;
_fetchedResultsController.delegate = self;
return _fetchedResultsController;
}
- (void)viewDidLoad
{
[[self navigationController] setNavigationBarHidden:NO animated:YES];
[super viewDidLoad];
// Do any additional setup after loading the view.
NSArray *test= [Ex.routinedet allObjects];
NSSortDescriptor *desc = [[NSSortDescriptor alloc] initWithKey:#"image"
ascending:YES];
test = [test sortedArrayUsingDescriptors:[NSArray arrayWithObject:desc]];
NSLog(#"Image *** %#",test);
self.title = Ex.routinename;
NSLog(#"Image *** %#",Ex.routinename);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view delegate
- (IBAction)save:(id)sender {
[self dismissViewControllerAnimated:YES completion:nil];
}
- (IBAction)cancel:(id)sender {
[self dismissViewControllerAnimated:YES completion:nil];
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{ }
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { }
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
id sectionInfo =
[[_fetchedResultsController sections] objectAtIndex:section];
return [sectionInfo numberOfObjects];
}
- (void)configureCell:(UITableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath {
//RoutinesDetails *info = [_fetchedResultsController objectAtIndexPath:indexPath];
NSArray *test= [Ex.routinedet allObjects];
NSSortDescriptor *desc = [[NSSortDescriptor alloc] initWithKey:#"image"
ascending:YES];
test = [test sortedArrayUsingDescriptors:[NSArray arrayWithObject:desc]];
//cell.textLabel.text = info.image;
cell.textLabel.text = [[test objectAtIndex:indexPath.row] name];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"routineCell";
UITableViewCell *cell =
[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// Set up the cell...
[self configureCell:cell atIndexPath:indexPath];
return cell;
}
Any suggestions would be greatly appreciated.

Answer 1

I think you are seeing what you want. I assume EX is an exercise, a routine, and that you are trying to print out the associated details. Your debugging statement displays one RoutinesDetails
(entity: RoutinesDetails; id: 0x74531f0 ; data: )" )
Try this to help you visualize
for (RoutinesDetails *detail in Ex.routinedet) {
NSLog(#"image: %#, name: %#, routineName: %#",detail.image, detail.name, detail.routineinfo.routinename);
}