public function users($config = array())
    {
        $config = new KObjectConfigJson($config);
        $config->append(array(
            'model'        => 'users',
            'name'         => 'user',
            'value'        => 'id',
            'label'        => 'name',
            'sort'         => 'name',
            'validate'     => false
        ));

        return $this->_autocomplete($config);
    }