/**
  * @see Page::readData()
  */
 public function readData()
 {
     parent::readData();
     // get post, thread and board
     $this->post = new PostEditor($this->postID);
     $this->thread = new Thread($this->post->threadID);
     $this->board = Board::getBoard($this->thread->boardID);
     // get ip addresses of the author
     $this->authorIpAddresses = PostEditor::getIpAddressByAuthor($this->post->userID, $this->post->username, $this->post->ipAddress);
     // get hostnames
     $this->loadHostnames();
     // get other users of this ip address
     if ($this->post->ipAddress) {
         $this->otherUsers = PostEditor::getAuthorByIpAddress($this->post->ipAddress, $this->post->userID, $this->post->username);
     }
 }