function get_pcassignment_csv()
{
    global $user_chair;
    list($header, $texts) = SearchAction::pcassignments_csv_data($user_chair, range(1, 30));
    $csvg = new CsvGenerator();
    $csvg->set_header($header);
    $csvg->set_selection($header);
    $csvg->add($texts);
    return $csvg->unparse();
}
 function run(Contact $user, $qreq, $ssel)
 {
     list($header, $texts) = SearchAction::pcassignments_csv_data($user, $ssel->selection());
     downloadCSV($texts, $header, "pcassignments", array("selection" => $header));
 }