State::handlerBeforeIblockSectionUpdate

static function handlerBeforeIblockSectionUpdate(array &$fields): bool
{
	if (!self::checkIblockId($fields))
	{
		return true;
	}

	$limit = self::getIblockLimit((int)$fields['IBLOCK_ID']);
	if ($limit['LIMIT'] === 0)
	{
		return true;
	}
	if (!array_key_exists('IBLOCK_SECTION_ID', $fields))
	{
		return true;
	}
	$parentId = (int)$fields['IBLOCK_SECTION_ID'];
	self::loadIblockSections((int)$fields['IBLOCK_ID']);
	if (!isset(self::$fullIblockSections[$parentId]))
	{
		return true;
	}
	$iterator = IblockSectionTable::getList([
		'select' => ['IBLOCK_SECTION_ID'],
		'filter' => [
			'=ID' => $fields['ID'],
			'=IBLOCK_ID' => $fields['IBLOCK_ID'],
		],
	]);
	$row = $iterator->fetch();
	unset($iterator);
	if (empty($row))
	{
		return true;
	}
	$oldParentId = (int)$row['IBLOCK_SECTION_ID'];
	if (isset(self::$fullIblockSections[$oldParentId]))
	{
		return true;
	}

	$count = (int)CIBlockElement::GetList(
		[],
		[
			'IBLOCK_ID' => $fields['IBLOCK_ID'],
			'SECTION_ID' => $fields['ID'],
			'INCLUDE_SUBSECTIONS' => 'Y',
			'CHECK_PERMISSIONS' => 'N',
		],
		[],
		false,
		['ID']
	);
	if ($count === 0)
	{
		return true;
	}
	$limit['COUNT'] += $count;
	if ($limit['COUNT'] <= $limit['LIMIT'])
	{
		return true;
	}

	$limit['MESSAGE_ID'] = 'CATALOG_STATE_ERR_PRODUCT_IN_SECTION_LIMIT';

	self::setProductLimitError(self::getProductLimitError($limit));
	unset($limit);

	return false;
}