function perform()
{
// don't lose the db!
$db = $_REQUEST['db'];
if (isset($_POST['all'])) {
$location_id = $_POST['all'];
} else {
$location_id = $_POST['visible'];
}
$short_name = $_POST['library'];
$lib_f = new LibraryFinder($db);
$library = $lib_f->getLibraryByName($short_name);
$library_id = $library['library_id'];
$lf = new LocationFinder($db);
$location_name = $lf->getLocation($location_id);
if (isset($_POST['add'])) {
$add = $lf->addBridgeItem($location_id, $library_id, $location_name);
} elseif (isset($_POST['remove'])) {
$remove = $lf->removeBridgeItem($location_id, $library_id);
} elseif (isset($_POST['up'])) {
$location_id = $_POST['visible'];
$up = $lf->moveBridgeItemUp($location_id, $library_id);
} elseif (isset($_POST['down'])) {
$location_id = $_POST['visible'];
$down = $lf->moveBridgeItemDown($location_id, $library_id);
}
$loa = new LibraryAdminFormAction();
$result = $loa->perform();
$_REQUEST['library_id'] = $library['library_id'];
$_REQUEST['library'] = $library['short_name'];
$_REQUEST['full_name'] = $library['full_name'];
$_REQUEST['parent_table'] = 'locations';
$_REQUEST['locationList'] = $lf->findByLibraryID($library['library_id']);
return $result;
}
