public function do_search() {
      $q = $_REQUEST['query'];
      // i have NO idea why we added this in rev 2000. I think I was being stupid. - andrew
      // $_q = trim(preg_replace('/[^A-Za-z0-9\s\']/i', ' ', $_REQUEST['query']));
      $_q = $q;
      Loader::library('database_indexed_search');
      $ipl = new IndexedPageList();
      $aksearch = false;
 
      if (is_array($_REQUEST['akID'])) {
         Loader::model('attribute/categories/collection');
         foreach($_REQUEST['akID'] as $akID => $req) {
            $fak = CollectionAttributeKey::getByID($akID);
            if (is_object($fak)) {
               $type = $fak->getAttributeType();
               $cnt = $type->getController();
               $cnt->setAttributeKey($fak);
               $cnt->searchForm($ipl);
               $aksearch = true;
            }
         }
      }
 
      /*if (empty($_REQUEST['query']) && $aksearch == false) {
         return false;      
      }*/
 
      $ipl->setSimpleIndexMode(true);
      if (isset($_REQUEST['query'])) {
         $ipl->filterByKeywords($_q);
      }
 
      $ipl->filterByCollectionTypeHandle('material');
      $ipl->filterByAttribute('publish', 1);
 
      $ipl->setItemsPerPage(9);
 
      $res = $ipl->getPage(); 
 
      foreach($res as $r) { 
 
         $results[] = new IndexedSearchResult($r['cID'], $r['cName'], $r['cDescription'], $r['score'], $r['cPath'], $r['content']);
      }
 
      $this->set('query', $q);
      $this->set('paginator', $ipl->getPagination());
      $this->set('summary', $ipl->getSummary());
      $this->set('results', $results);
      $this->set('do_search', true);
   }