public function lastUpdated()
 {
     $query = ActivityLog::orderBy('updated_at', 'DESC')->first();
     if ($query) {
         return $query->updated_at->format('Y-m-d H:i:s');
     }
     return date("Y-m-d H:i:s");
 }
 public function log()
 {
     if (\Auth::guest()) {
         return redirect('auth/login');
     }
     $activities = ActivityLog::orderBy('id', 'desc')->get();
     return view('admin/log')->with('activities', $activities);
 }