One question, request plz
Im porting the same example to a ipad app, but with a UIViewController instead of a UITableViewController,
to have a little table not for the whole screen

but I get this error>
“Request for member ‘tableView’ in something not a structure or union

here is my project
http://hyperprogram.com/banksCD.zip

is the same I think for the one you show us how to make but with the ipad in mind, I have searched a lot in google how to fix it to no avail
plz help man,
also check the project and I’ll leave it for other people if you want,

thank you so much!

Can you teach me how to work with number of sections in CoreData.

Was planning to work with coredata together with indexes for searching.

Thanks for your help Ray.

@AD: Thanks for helping out Luca! :]

@Jaho: Thanks! :]

@Jean-Marc: In your viewWillAppear, update the fetchRequest’s predicate, then call performFetch to re-fetch what you want to see.

Below a “summary”, simplified, version of my code.

I manage in CoreData a simple hierarchy.”CardSet” is the master table “Card” is the child.

This code works find for the first selection (whichever “cardSet” is selected, the right “childs” cards are displayed).
But for any further selection, whichever “cardSet” is selected, the same “childs” are always displayed.
Looks like, in the fetchedResultsController method, aside from the 1st time, the only code executed is: “if (_fetchedResultsController != nil) return _fetchedResultsController;”, hence giving always the same result. I think I have an issue with “resetting” the fetchedResultsController.

Thank you very much for your time.
———————————————————
In each controller, I have
- (void)viewDidUnload {
self.fetchedResultsController=nil; }
- (void)dealloc {
[_fetchedResultsController release];}
————————————————————————————————————————————
// CardSetTableController.m (is a UITableViewController)

- (void)viewDidLoad {
entityForName=@”CardSet”;
sortKey=@”label”;
[super viewDidLoad];
}

- (void)viewWillAppear:(BOOL)animated {
NSError *error;
[self fetchedResultsController] performFetch:&error];
[self.tableView reloadData];
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

if (downCardController == nil) {
downCardController=[[CardTableController alloc]
initWithStyle:UITableViewStylePlain];
}
CardSet *oneCardSet=[self.fetchedResultsController objectAtIndexPath:indexPath];
downCardController.cardSet=oneCardSet;

[self.navigationController pushViewController:downCardController animated:YES];

}

-(NSFetchedResultsController *) fetchedResultsController {
// Is the same as the code below in CardTableController.m, except for the
// predicate indicated between //============
}
——————————————————————————————————————————————————————————
// CardTableController.m (is a UITableViewController)
- (void)viewDidLoad {
entityForName=@”Card”;
sortKey=@”label”;
[super viewDidLoad];
}

- (void)viewWillAppear:(BOOL)animated {
NSError *error;
[self fetchedResultsController] performFetch:&error];
[self.tableView reloadData];
}

-(NSFetchedResultsController *) fetchedResultsController {
if (_fetchedResultsController != nil) return _fetchedResultsController;

NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
NSManagedObjectContext *context=[appDelegate managedObjectContext];

NSEntityDescription *entity=[NSEntityDescription entityForName:entityForName
inManagedObjectContext:context];
[fetchRequest setEntity:entity];

//====================================================================
//Predicate for selection of Cards “of” the selected CardSet
NSPredicate *pred= [[NSPredicate alloc]init];
pred=[NSPredicate predicateWithFormat:@"(cardSet.label=%@)",cardSet.label];
[fetchRequest setPredicate:pred];
//====================================================================

NSSortDescriptor *sortDescriptor=[[NSSortDescriptor alloc] initWithKey:sortKey
ascending:YES];
NSArray *sortDescriptors=[[NSArray alloc] initWithObjects:sortDescriptor, nil];
[fetchRequest setSortDescriptors:sortDescriptors];

NSFetchedResultsController *frc= [[NSFetchedResultsController alloc]
initWithFetchRequest:fetchRequest
managedObjectContext:context
sectionNameKeyPath:nil
cacheName:@”cacheCard”];
frc.delegate=self;
_fetchedResultsController=frc;
[fetchRequest release];
[sortDescriptor release];
[sortDescriptors release];
[pred release];

return _fetchedResultsController;
}
—————————————————————————————————————————————————–