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POChanged sectionNameKeyPath attribute value is not reflected on NSFetchedResultsController
 

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  1. POChanged sectionNameKeyPath attribute value is not reflected on NSFetchedResultsController
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    <p>I have a table-view backed by an NSFetchedResultsController.</p> <p>Any time an object in the underlying context changes, the NSFetchedResultsController automatically reflects new attribute values on the table-view. Yay.</p> <p>The one exception I have noticed is that updates to the attribute value used for sectionNameKeyPath are not reflected automatically.</p> <p>I'm guessing the attribute value used for the sectionNameKeyPath is so fundamental to the NSFetchedResultsController that I'll need to performFetch &amp; reload the table-view again?</p> <p><strong>Update</strong>: heres the code used to configure the fetch request</p> <pre><code>- (void)configureFetch { CoreDataHelper *cdh = [(AppDelegate *)[[UIApplication sharedApplication] delegate] cdh]; NSFetchRequest *request = [NSFetchRequest fetchRequestWithEntityName:@"Item"]; request.sortDescriptors = [NSArray arrayWithObjects: [NSSortDescriptor sortDescriptorWithKey:@"locationAtHome.storedIn" ascending:YES], [NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES], nil]; [request setFetchBatchSize:15]; self.frc = [[NSFetchedResultsController alloc] initWithFetchRequest:request managedObjectContext:cdh.context sectionNameKeyPath:@"locationAtHome.storedIn" cacheName:nil]; self.frc.delegate = self; } </code></pre> <p>and the code to perform the fetch:</p> <pre><code>- (void)performFetch { if (self.frc) { [self.frc.managedObjectContext performBlockAndWait:^{ NSError *error; [self.frc performFetch:&amp;error]; if (error) NSLog(@"%@ '%@' %@ (Reason: %@)", self.class, NSStringFromSelector(_cmd), error.localizedDescription, error.localizedFailureReason); [self.tableView reloadData]; }]; } } </code></pre>
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    1. PO
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    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. COCan you show your code creating the fetched results controller (with the fetch request, predicate, sort descriptors)?
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      1. POChanged sectionNameKeyPath attribute value is not reflected on NSFetchedResultsController
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    2. COupdated with code
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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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