/**
  * Inserts the provided action
  */
 public function insert()
 {
     if (!$this->shouldIndex()) {
         return;
     }
     throw new sfException(__CLASS__ . ' not implemented');
     extract($this->getActionProperties());
     $output = $this->executeAction($params);
     $content = $output->getContent();
     $doc = Zend_Search_Lucene_Document_Html::loadHtml($content);
     $doc->addField('sfl_title', $output->getLastTitle(), 2);
     $doc->addField('sfl_uri', $this->getUri($params));
     $doc->addField('sfl_description', $content);
     $doc->addField('sfl_type', 'action');
     $categories = $this->getActionCategories();
     if (count($categories)) {
         foreach ($categories as $category) {
             $this->addCategory($category);
         }
         $doc->addField('sfl_category', implode(', ', $categories));
     }
     $doc->addField('sfl_categories_cache', serialize($categories));
     $guid = $this->getGuid($params);
     $this->addDocument($doc, $guid, 'action');
     $this->getSearch()->getEventDispatcher()->notify(new sfEvent($this, 'indexer.log', array('Inserted action "%s" of module "%s" to index', $this->getAction(), $this->getModule())));
     return $this;
 }