Recursive save of managed object context

saveManagedObjectContext.m

- (void) saveManagedObjectContext:(NSManagedObjectContext *)managedObjectContext withCompletion::(void (^)(BOOL, NSError *))completio{
	managedObjectContext performBlock:^{
		NSError	*error	= nil;

		if (![managedObjectContext save:&error]){
			completion(NO, error);
		} else {
			if ([managedObjectContext parentContext] != nil){
				[self saveManagedObjectContext:[managedObjectContext parentContext] withCompletion:completion];
			} else {
				completion(YES, error);
			}
		}
	}];
}