public function index()

    {
        $toc = $this->getOption('toc');

        for ($i = 0; $i < count($toc); $i++) {
            $this->indexSection($toc->getChild($i));
        }        

    }
    
    public function indexSection(Sensei_Doc_Section $section)
    {
        $q = Doctrine_Query::create()->from('Sensei_Doc_Path p')->where('p.path = ?');
        
        $path = $q->execute(array($section->getPath()));
        
        if ($path === false) {
            $path = new Sensei_Doc_Path;
            $path->path = $section->getPath();
            $path->save();
        }

        $fields = array(
            'path' => $section->getPath(),
            'content' => $section->getText(),
            'id' => $path->id
        );
        
        $this->updateIndex($fields);
        
        for ($i = 0; $i < count($section); $i++) {
            $this->indexSection($section->getChild($i));
        }    
    }