functional.m

- (void)_displayPendingReviews
{
	[[[[[NSFileManager defaultManager]
		contentsOfDirectoryAtURL:GFSessionGroupsRoot()
		includingPropertiesForKeys:nil
		options:NSDirectoryEnumerationSkipsHiddenFiles
		error:NULL
	] gf_map:^id(NSURL *url) {
		return [GFSessionGroup loadFromFileAtURL:url];
	}] gf_filter:^BOOL(GFSessionGroup *group) {
		return ![group isFinished];
	}] gf_each:^(GFSessionGroup *group) {
		[self _displayReviewUIForGroup:group.identifier];
	}];
}

procedural.m

- (void)_displayPendingReviews
{
	NSArray *urls = [[NSFileManager defaultManager]
		contentsOfDirectoryAtURL:GFSessionGroupsRoot()
		includingPropertiesForKeys:nil
		options:NSDirectoryEnumerationSkipsHiddenFiles
		error:NULL];
	
	for(NSURL *url in urls) {
		GFSessionGroup *group = [GFSessionGroup loadFromFileAtURL:url];
		if([group isFinished])
			continue;
		
		[self _displayReviewUIForGroup:group.identifier];
	}
}