IblockSettings::init

protected function init(): void
{
	$this->iblockFields = IblockTable::getRow([
		'select' => [
			'*',
			'TYPE_SECTIONS' => 'TYPE.SECTIONS',
		],
		'filter' => [
			'=ID' => $this->iblockId,
			'=ACTIVE' => 'Y',
		],
	]);
	if (empty($this->iblockFields))
	{
		throw new SystemException('Not found active iblock');
	}

	$this->iblockTypeId = $this->iblockFields['IBLOCK_TYPE_ID'];
	$this->isAllowedIblockSections = $this->iblockFields['TYPE_SECTIONS'] === 'Y';

	if (
		$this->iblockFields['LIST_MODE'] === IblockTable::LIST_MODE_SEPARATE
		|| $this->iblockFields['LIST_MODE'] === IblockTable::LIST_MODE_COMBINED
	)
	{
		$this->listMode = $this->iblockFields['LIST_MODE'];
	}
	else
	{
		$this->listMode =
			Option::get('iblock', 'combined_list_mode') === 'Y'
				? IblockTable::LIST_MODE_COMBINED
				: IblockTable::LIST_MODE_SEPARATE
		;
	}
}