UISearchBarController not updateing search results UITableView

[DetartrateD]

Hi everybody!

So, got a table view loaded from core data store with search bar header (set up in IB using UISearchBar + controller) all connections fine.

App runs no problem on devise. Problem is, when search text inputted, results show full table view data and not predicated' data request code as follows;

.m:

#pragma mark -
#pragma mark UISearchDisplayController Delegate Methods

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
    [self filterContentForSearchText:[self.searchDisplayController.searchBar text] scope:nil];
	
    return YES;
}


 - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption
 {
 return YES;
 }
 

- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
    [self setSearchIsActive:YES];
    return;
}

- (void)searchDisplayControllerDidEndSearch:(UISearchDisplayController *)controller 
{
    NSFetchRequest *aRequest = [[self fetchedResultsController] fetchRequest];
	
    [aRequest setPredicate:nil];
	
    NSError *error = nil;
    if (![[self fetchedResultsController] performFetch:&error]) {
        // Handle error
        NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
        abort();
    }  
	
    [self setSearchIsActive:NO];
    return;
}



#pragma mark -
#pragma mark Content Filtering


- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope {
	
    NSFetchRequest *aRequest = [[self fetchedResultsController] fetchRequest];
	
	
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"indexNumber MATCHES[cd] %@", searchText];
	
	self.filteredListContent = [[[self fetchedResultsController] fetchedObjects] filteredArrayUsingPredicate:predicate];
    [aRequest setPredicate:predicate];
	
    NSError *error = nil;
    if (![[self fetchedResultsController] performFetch:&error]) {
        NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
        abort();
    }   
}

...

#pragma mark -
#pragma mark UISearchDisplayController Delegate Methods

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
    [self filterContentForSearchText:[self.searchDisplayController.searchBar text] 
							   scope:nil];
	 
	 return YES;
}

- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
	
	[self setSearchIsActive:YES];
}


- (void)searchDisplayControllerDidEndSearch:(UISearchDisplayController *)controller 
{    
    NSFetchRequest *aRequest = [[self fetchedResultsController] fetchRequest];
	
	[aRequest setPredicate:nil];
	
    NSError *error = nil;
    if (![[self fetchedResultsController] performFetch:&error]) {
        
        NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
        abort();
    }  
    [self setSearchIsActive:NO];
	
    return;
}
 

- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller 
{
    if ([self searchIsActive]) {
		
        [[[self searchDisplayController] searchResultsTableView] beginUpdates];
    }
    else  {
        [self.tableView beginUpdates];
    }
}

- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller 
{
    if ([self searchIsActive]) {
        [[[self searchDisplayController] searchResultsTableView] endUpdates];
    }
    else  {
        [self.tableView endUpdates];
    }
}

...




I have put all the relevant code snippets in full (hope this helps).

All I want is the search result table to only update with the search results not the whole data set.

I thank you in advance !!

[Bertrand21]

Originally Posted by DetartrateD

All I want is the search result table to only update with the search results not the whole data set.

that's a lot harder than you think. Just calling beginUpdates won't do it. You would need to figure out which rows to delete and which rows to insert on the fly which is ridiculous. I would just call reloadData instead.

[DetartrateD]

Originally Posted by Bertrand21

that's a lot harder than you think. Just calling beginUpdates won't do it. You would need to figure out which rows to delete and which rows to insert on the fly which is ridiculous. I would just call reloadData instead.

Thank you for the input )

I had to tweak a few bits of code to get it to work.

Solution was sourced from :

iphone - How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar - Stack Overflow

Works a treat now!!

[roberthuttinger]

Originally Posted by DetartrateD

Thank you for the input )

I had to tweak a few bits of code to get it to work.

Works a treat now!!

I am running into same issue and cant get it to work.

I am instantiating the UISearch in the .m file, this looks like it would be the solution I need but I cant get it right? Post

code

please!