Method saveorder

/**
 * Method to save the submitted ordering values for records.
 *
 * @return  boolean  True on success
 *
 * @since   1.6
 */
public function saveorder()
{
    // Check for request forgeries.
    $this->checkToken();
    // Get the input
    $pks = (array) $this->input->post->get('cid', array(), 'int');
    $order = (array) $this->input->post->get('order', array(), 'int');
    // Remove zero PKs and corresponding order values resulting from input filter for PK
    foreach ($pks as $i => $pk) {
        if ($pk === 0) {
            unset($pks[$i]);
            unset($order[$i]);
        }
    }
    // Get the model
    $model = $this->getModel();
    // Save the ordering
    $return = $model->saveorder($pks, $order);
    $redirect = Route::_('index.php?option=' . $this->option . '&view=' . $this->view_list . $this->getRedirectToListAppend(), false);
    if ($return === false) {
        // Reorder failed
        $message = Text::sprintf('JLIB_APPLICATION_ERROR_REORDER_FAILED', $model->getError());
        $this->setRedirect($redirect, $message, 'error');
        return false;
    } else {
        // Reorder succeeded.
        $this->setMessage(Text::_('JLIB_APPLICATION_SUCCESS_ORDERING_SAVED'));
        $this->setRedirect($redirect);
        return true;
    }
}