/**
  * Display photo gallery
  * @param $slug
  * @return \Illuminate\View\View
  */
 public function show($slug)
 {
     $photo_gallery = $this->photoGallery->getBySlug($slug);
     if ($photo_gallery === null) {
         return Response::view('errors.missing', array(), 404);
     }
     return view('frontend.photo_gallery.show', compact('photo_gallery'));
 }
 /**
  * @param $slug
  * @return mixed
  */
 public function getBySlug($slug)
 {
     return $this->photoGallery->getBySlug($slug);
 }