Bitrix Framework

You can supplement the standard set of restrictions with your own. To do that, use the restriction initializing events as you see fit:

• for delivery services onSaleDeliveryRestrictionsClassNamesBuildList:

  Bitrix\Main\EventManager::getInstance()->addEventHandler(
      'sale',
      'onSaleDeliveryRestrictionsClassNamesBuildList',
      'myDeliveryFunction'
  );
  

• for payment systems onSalePaySystemRestrictionsClassNamesBuildList:

  Bitrix\Main\EventManager::getInstance()->addEventHandler(
      'sale',
      'onSalePaySystemRestrictionsClassNamesBuildList',
      'myPayFunction'
  );
  

• for cash registers onSaleCashboxRestrictionsClassNamesBuildList:

  Bitrix\Main\EventManager::getInstance()->addEventHandler(
      'sale',
      'onSaleCashboxRestrictionsClassNamesBuildList',
      'myCashboxFunction'
  );
  

• for companies onSaleCompanyRulesClassNamesBuildList:

  Bitrix\Main\EventManager::getInstance()->addEventHandler(
      'sale',
      'onSaleCompanyRulesClassNamesBuildList',
      'myCompanyFunction'
  );
  

Accordingly, you need to return your restriction class in the event handlers:

• for delivery services:

  function myDeliveryFunction()
  {
      return new \Bitrix\Main\EventResult(
          \Bitrix\Main\EventResult::SUCCESS,
          array(
              '\MyDeliveryRestriction' => '/bitrix/php_interface/include/mydelrestriction.php',
          )
      );
  }
  

• for payment systems:

  function myPayFunction()
  {
      return new \Bitrix\Main\EventResult(
          \Bitrix\Main\EventResult::SUCCESS,
          array(
              '\MyPayRestriction' => '/bitrix/php_interface/include/mypayrestriction.php',
          )
      );
  }
  

• for cash registers:

  function myCashboxFunction()
  {
      return new \Bitrix\Main\EventResult(
          \Bitrix\Main\EventResult::SUCCESS,
          array(
              '\MyCashboxRestriction' => '/bitrix/php_interface/include/mycashboxrestriction.php',
          )
      );
  }
  

• for companies:

  function myCompanyFunction()
  {
      return new \Bitrix\Main\EventResult(
          \Bitrix\Main\EventResult::SUCCESS,
          array(
              '\MyCompanyRestriction' => '/bitrix/php_interface/include/mycompanyrestriction.php',
          )
      );
  }
  

Next, by describing the restriction, you can introduce any rules of your choice. A restriction for delivery service availability on lunar days only is introduced in the example below:

use Bitrix\Sale\Delivery\Restrictions;
use Bitrix\Sale\Internals\Entity;

class MyDeliveryRestriction extends Restrictions\Base
{
    public static function getClassTitle()
    {
        return 'on lunar days';
    }

    public static function getClassDescription()
    {
        return 'delivery will be performed only within the indicated range of lunar days';
    }

public static function check($moonday, array $restrictionParams, $deliveryId = 0)
{
    if ($moonday < $restrictionParams['MIN_MOONDAY']
        || $moonday > $restrictionParams['MAX_MOONDAY'])
        return false;

    return true;
}
protected static function extractParams(Entity $shipment)
{
    $json = file_get_contents('http://moon-today.com/api/index.php?get=moonday');
    $res = json_decode($json, true);
    return !empty($res['moonday']) ? intval($res['moonday']) : 0;
}
public static function getParamsStructure($entityId = 0)
    {
        return array(
            "MIN_MOONDAY" => array(
                'TYPE' => 'NUMBER',
                'DEFAULT' => "1",
                'LABEL' => 'Minimum days'
            ),
            "MAX_MOONDAY" => array(
                'TYPE' => 'NUMBER',
                'DEFAULT' => "30",
                'LABEL' => 'Maximum days'
            )
        );
    }
}