public function parse()
 {
     $directors = DB_nad_directorQuery::create()->orderByLastName()->orderByFirstName()->find()->toArray();
     $director_count = count($directors);
     if ($director_count % 2 !== 0) {
         $director_count++;
     }
     return array("first" => array_slice($directors, 0, $director_count / 2), "second" => array_slice($directors, $director_count / 2));
 }
 protected function getModelCriteria()
 {
     $input = self::getRequiredInput(array("sort_by" => FILTER_UNSAFE_RAW, "is_ascending" => FILTER_VALIDATE_BOOLEAN)) + self::getInput(array("search" => FILTER_UNSAFE_RAW));
     $query = DB_nad_directorQuery::create();
     if ($input["search"] != "") {
         $query->filterByName($input["search"])->_or()->filterByOrganization("%" . $input["search"] . "%");
     }
     $query->orderBy($input["sort_by"], $input["is_ascending"] ? Criteria::ASC : Criteria::DESC);
     return $query;
 }