updateByDiscount

boolean public static
\Bitrix\Sale\Internals\DiscountEntitiesTable::updateByDiscount(
 integer $discount,
 array $entityList,
 boolean $clear
);

Method updates entity list parameters according discount with code $discount. Static method.

Parameter	Description	Version
$discount	Discount ID.
$entityList	Array with entities.
$clear	When parameter is true, clears old values.