public function saveSharingOptions()
 {
     Phalanx::loadClasses('SocialNetwork');
     if (!is_object($this->post->facebook_options)) {
         $this->post->facebook_options = new stdClass();
     }
     if (!is_object($this->post->twitter_options)) {
         $this->post->twitter_options = new stdClass();
     }
     SocialNetwork::saveOptions($this->session->user->id, SocialNetwork::FACEBOOK, $this->post->facebook_options);
     SocialNetwork::saveOptions($this->session->user->id, SocialNetwork::TWITTER, $this->post->twitter_options);
 }