getRequiredFields() public method

Get the data fields that are required for the component.
public getRequiredFields ( Order $order ) : array
$order Order [description]
return array required data fields
 public function getRequiredFields(Order $order)
 {
     $fields = parent::getRequiredFields($order);
     if (SiteConfig::current_site_config()->TermsPage()->exists()) {
         $fields[] = 'ReadTermsAndConditions';
     }
     return $fields;
 }