public function show($tagName)
{
$tagName = mb_strtolower($tagName);
$tag = $this->tagService->getByName($tagName);
if (empty($tag)) {
\App::abort(404);
}
$items = $this->itemService->getRecentsByTagId($tag->id);
return \View::make('tags.show', compact('tag', 'items'));
}