/**
  * @param $username1
  * @param $username2
  * @param Request $request
  * @return mixed
  */
 public function showAdmin($username1, $username2, Request $request)
 {
     $user1 = User::findOrFailByUsername($username1);
     $user2 = User::findOrFailByUsername($username2);
     $messages = Message::conversation($user1, $user2)->withTrashed()->latest()->paginate(20);
     return view('messages.showadmin')->withMessages($messages)->withRecuser1($user1)->withRecuser2($user2);
 }