CCrmFieldMulti::Rebind

static function Rebind($srcEntityID, $srcElementID,  $dstEntityID, $dstElementID)
{
	if(!(is_string($srcEntityID) && $srcEntityID !== ''))
	{
		throw new \Bitrix\Main\ArgumentException('Must be not empty string.', 'srcEntityID');
	}

	if(!(is_string($dstEntityID) && $dstEntityID !== ''))
	{
		throw new \Bitrix\Main\ArgumentException('Must be not empty string.', 'dstEntityID');
	}

	if(!is_int($srcElementID))
	{
		$srcElementID = (int)$srcElementID;
	}

	if($srcElementID <= 0)
	{
		throw new \Bitrix\Main\ArgumentException('Must be greater than zero.', 'srcElementID');
	}

	if(!is_int($dstElementID))
	{
		$dstElementID = (int)$dstElementID;
	}

	if($dstElementID <= 0)
	{
		throw new \Bitrix\Main\ArgumentException('Must be greater than zero.', 'dstElementID');
	}

	$connection = \Bitrix\Main\Application::getInstance()->getConnection();

	$helper = $connection->getSqlHelper();
	$srcEntityID = $helper->forSql($srcEntityID);
	$dstEntityID = $helper->forSql($dstEntityID);
	$connection->queryExecute("
		UPDATE b_crm_field_multi SET ENTITY_ID = '{$dstEntityID}', ELEMENT_ID = {$dstElementID}
			WHERE ENTITY_ID = '{$srcEntityID}' AND ELEMENT_ID = {$srcElementID}
	");

	DuplicateCommunicationCriterion::processMultifieldsChange(
		CCrmOwnerType::ResolveID($srcEntityID),
		$srcElementID
	);

	DuplicateCommunicationCriterion::processMultifieldsChange(
		CCrmOwnerType::ResolveID($dstEntityID),
		$dstElementID
	);
}