Passing data to all views served by a controller in Laravel

I have a controller that has two methods, each serving up a different view:

class NavController extends Controller {
 public function posts()
 {
  $posts = Post::all();
  $tabs = Tag::all();
  return view('posts')->with('posts', => $posts, 'tags' => $tags);
 }
 public function users()
 {
  $users = User::all();
  $tabs = Tag::all();
  return view('users')->with('users', => $users, 'tags' => $tags);
 }
}

I wish to avoid writing the logic for retrieving and passing tags in each and every method and thus I am wondering if there is a way to retrieve the data in one place in the controller and then pass it by default to every view that is served up by this controller.

via Chebli Mohamed