/**
  * Display the specified resource.
  *
  * @param  int  $id
  * @return \Illuminate\Http\Response
  */
 public function show($id)
 {
     $user = Auth::user();
     $categories = Category::all();
     $video = Video::find($id);
     return view('videos.show', compact('user', 'video', 'categories'));
 }