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PODisplay NSSet data from Core Data
 

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    <p>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 <a href="https://stackoverflow.com/questions/17557288/how-to-check-if-a-relationship-has-been-established-core-data">here</a>. I am trying to recall the associated <strong>RoutinesDetail</strong> data on the detail view.</p> <p><img src="https://i.stack.imgur.com/1JoDA.png" alt="enter image description here"></p> <p>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 <code>Ex.routinename</code></p> <p>Using the following to debug and try to allocate the NSSet as I read a way to display it was to use <code>allObjects</code> but this didn't work: </p> <pre><code>NSArray *test= [Ex.routinedet allObjects]; NSSortDescriptor *desc = [[NSSortDescriptor alloc] initWithKey:@"image" ascending:YES]; test = [test sortedArrayUsingDescriptors:[NSArray arrayWithObject:desc]]; NSLog(@"Image *** %@",test); </code></pre> <p>This produces the following report which makes me question whether I am doing it right?</p> <blockquote> <p>"&lt;RoutinesDetails: 0x7453d80&gt; (entity: RoutinesDetails; id: 0x74531f0 &lt;x-coredata://C075DDEC-169D-46EC-A4B7-972A04FCED70/RoutinesDetails/p1&gt; ; data: &lt;fault&gt;)" )</p> </blockquote> <p>So basically I am looking at how to retrieve <strong>RoutinesDetails</strong>. Any suggestions would be greatly appreciated.</p> <p>**</p> <h2>In case it is needed here is the associated code</h2> <p>**</p> <p><strong>routines.h</strong> - NSManagedObject</p> <pre><code>@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 </code></pre> <p><strong>RoutinesDetails.h</strong> - NSManagedObject</p> <pre><code>@class Routines; @interface RoutinesDetails : NSManagedObject @property (nonatomic, retain) NSString * image; @property (nonatomic, retain) NSString * name; @property (nonatomic, retain) Routines *routineinfo; @end </code></pre> <p><strong>FBCDRoutineDetailViewController</strong>(sorry if its too much code)</p> <pre><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; } </code></pre> <p>Any suggestions would be greatly appreciated.</p>
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