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    <p>I had the same problem and I've another solution - use a transient property for the sectionNameKeyPath i.e. category.sectionName. It seems that if you use a core data property as a sectionNameKeyPath it will try and sort with that.</p> <p>So using your example above:</p> <pre><code>NSSortDescriptor *sortDescriptor1 = [[NSSortDescriptor alloc] initWithKey:@"category.displayOrder" ascending:YES]; NSSortDescriptor *sortDescriptor2 = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor1, sortDescriptor2, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:@"category.sectionName" cacheName:nil]; </code></pre> <p>Category.h:</p> <pre><code>@interface Category : NSManagedObject @property (nonatomic, retain) NSString* name; @property (nonatomic, retain) NSNumber* displayOrder; -(NSString*) sectionName; @end </code></pre> <p>Category.m:</p> <pre><code>@implementation Category @dynamic name; @dynamic displayOrder; -(NSString*) sectionName{ return self.name; } @end </code></pre> <p>Then in your view controller:</p> <pre><code>- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{ id&lt;NSFetchedResultsSectionInfo&gt; sectionInfo=[self.resultsController.sections objectAtIndex:section]; return sectionInfo.name; } </code></pre>
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    1. PONSFetchedResultsController section ordering using display order
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    1. This table or related slice is empty.
    1. USMark Horgan
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    1. COThis worked for me, thanks!
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      1. USKirby Todd
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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