BlogPost::getPinnedDescription

public function getPinnedDescription()
{
	$result = '';

	if (empty($this->sourceFields))
	{
		$this->initSourceFields();
	}

	$post = $this->getSourceFields();
	if (empty($post))
	{
		return $result;
	}

	$result = truncateText(str_replace(''', "'", htmlspecialcharsBack(CTextParser::clearAllTags($post['DETAIL_TEXT']))), 100);
	$result = preg_replace('/^' . (BitrixMainApplication::isUtfMode() ? "xC2xA0" : "xA0") . '$/', '', $result);

	if (
		$result === ''
		&& Loader::includeModule('disk')
	)
	{
		$fileNameList = [];
		$res = BitrixDiskAttachedObject::getList([
			'filter' => [
				'=ENTITY_TYPE' => BitrixDiskUfBlogPostConnector::className(),
				'ENTITY_ID' => $this->entityId
			],
			'select' => [ 'ID', 'FILENAME' => 'OBJECT.NAME' ]
		]);
		foreach ($res as $attachedObjectFields)
		{
			$fileNameList[] = $attachedObjectFields['FILENAME'];
		}
		$result = truncateText(implode(' ', $fileNameList), 100);
	}

	return $result;
}