private static function getRelatedProductsSetFilter(Product $product, $type)
{
$filter = new ARSelectFilter();
$filter->joinTable('ProductRelationshipGroup', 'ProductRelationship', 'ID', 'productRelationshipGroupID');
$filter->setOrder(new ARFieldHandle("ProductRelationshipGroup", "position"), 'ASC');
$filter->setOrder(new ARFieldHandle(__CLASS__, "position"), 'ASC');
$filter->setCondition(new EqualsCond(new ARFieldHandle(__CLASS__, "productID"), $product->getID()));
$filter->mergeCOndition(new EqualsCond(new ARFieldHandle(__CLASS__, "type"), $type));
return $filter;
}