gistfile1.txt

- (void) deleteAllObjects: (NSString *) entityDescription  {
    NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
    NSManagedObjectContext *managedObjectContext = [self backgroundManagedObjectContext];
    
    
    NSEntityDescription *entity = [NSEntityDescription entityForName:entityDescription inManagedObjectContext:managedObjectContext];
    [fetchRequest setEntity:entity];
	
    NSError *error;
    NSArray *items = [managedObjectContext executeFetchRequest:fetchRequest error:&error];
	
	
    for (NSManagedObject *managedObject in items) {
    	[managedObjectContext deleteObject:managedObject];
    	//NSLog(@"%@ object deleted",entityDescription);
    }
	
    if (![managedObjectContext save:&error]) {
    	//NSLog(@"Error deleting %@ - error:%@",entityDescription,error);
    }
	
}