- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
    // Delete the row from the data source

    [self.folders removeObjectAtIndex:indexPath.row];
    NSMutableArray *newSavedFolders = [[NSMutableArray alloc] init];

    for (Folder *folder in self.folders){
        [newSavedFolders addObject:[self folderWithName:folder.name]];
    }

    [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];

} else if (editingStyle == UITableViewCellEditingStyleInsert) {
    // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}

-(Folder *)folderWithName:(NSString *)name {
id delegate = [[UIApplication sharedApplication] delegate];
NSManagedObjectContext *context = [delegate managedObjectContext];

Folder *folder = [NSEntityDescription insertNewObjectForEntityForName:@"Folder" inManagedObjectContext:context];
folder.name = name;
folder.date = [NSDate date];

NSError *error;
if (![context save:&error]) {
    //we have an error
}

return folder;