/**
* Overrides views_handler::options_form().
*
* Provides link to shipment administration page.
*/
public function buildOptionsForm(&$form, FormStateInterface $form_state)
{
parent::options_form($form, $form_state);
$form['link_to_shipment'] = array('#title' => t('Link this field to the shipment page'), '#description' => t('This will override any other link you have set.'), '#type' => 'checkbox', '#default_value' => !empty($this->options['link_to_shipment']));
}
