StackOverflow2013

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2011-05-06T18:02:06.130
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2011-05-09T19:42:39.050
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2011-05-09T19:42:39.050
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EDIT: @fluchtpunkt answer is correct. After making a few more updates to my code my solution broke again. Removing the the block that re-fetches the FRC made it all work again. <hr> I'm surprised I didn't figure this out in all my iterative testing (learning) yesterday. I was had run into problems with syncing the core data fetched results with the table view in a nice way - often I'd get the mis-match index (blah blah blah the number of rows (#) must equal the number # plus or minus the number of rows blah blah blah ( 0 inserted: # deleted).. etc). My steps to complete this were as follows: <ol> <li>Perform the soft delete & save</li> <li>set the fetched results controller to nil <code>self.fetchedrResultsController = nil</code></li> <li>Do a new fetch</li> <li>THEN delete the row from the table:</li> </ol> <pre> self.fetchedResultsController = nil; NSError *error = nil; if (![[self fetchedResultsController] performFetch:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } else { [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationRight]; } </pre> I really don't know why I didn't figure this out earlier, but it makes so much sense. Fresh eyes? Here's the full picture: <pre> -(void) completeTask: (id) sender { NSIndexPath *indexPath = [self.tableView indexPathForCell:(UITableViewCell *)[[sender superview] superview]]; NSManagedObject *task = [self.fetchedResultsController objectAtIndexPath:indexPath]; [task setValue:date forKey:@"complete"]; AppController *ac = [AppController sharedAppController]; NSManagedObjectContext *moc = [ac managedObjectContext]; NSError *error = nil; if(![moc save:&error]){ NSLog(@"Uh oh - couldn't save the delete! %@ \n%@",error, [error description]); exit(-1); } else { // Save successful; re-fetch data (background) self.fetchedResultsController = nil; NSError *error = nil; if (![[self fetchedResultsController] performFetch:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } else { //update the table view with row animation [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationRight]; } } }</pre>
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1. POAnimate data refresh (soft delete) on Core Data / UITableView
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1. USCameron
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1. USCameron
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