/**
  * Display a listing of the businesses. Front page view
  * Guest users will see a list of all businesses.
  * Logged in users will see a list of businesses they're following followed by a list of all others
  * @return Response
  */
 public function index()
 {
     $businesses = Business::all();
     if (Auth::check()) {
         $user = Auth::user();
         $followingBusinessIds = $user->following()->lists('id');
         //array of business ids of business the user is following
         //Get all businesses the user is not following
         $businesses = Business::whereNotIn('id', $followingBusinessIds)->get();
     }
     return view('businesses.index', compact('businesses'));
     //return view('businesses.index')->where('businesses', $businesses);
 }