CCrmExternalChannelImportActivity::fillEmptyFields

public function fillEmptyFields(&$fields, $params=array())
{
	$ownerEntity = $this->getOwnerEntity();

	if($ownerEntity->getOwnerTypeID() ===  \CCrmOwnerType::Company)
	{
		$title = is_set($params[CCrmExternalChannelImport::FIELDS], 'TITLE')? $params[CCrmExternalChannelImport::FIELDS]['TITLE']:'';

		$fields['SUBJECT'] =  Loc::getMessage('CRM_REST_EXTERNAL_CHANNEL_IMPORT_COMPANY_ACTIVITY_SUBJECT')." ".$title;
	}
	elseif($ownerEntity->getOwnerTypeID() ===  \CCrmOwnerType::Contact)
	{
		$name[] = is_set($params[CCrmExternalChannelImport::FIELDS], 'LAST_NAME')? $params[CCrmExternalChannelImport::FIELDS]['LAST_NAME']:'';
		$name[] = is_set($params[CCrmExternalChannelImport::FIELDS], 'NAME')? $params[CCrmExternalChannelImport::FIELDS]['NAME']:'';
		$name[] = is_set($params[CCrmExternalChannelImport::FIELDS], 'SECOND_NAME')? $params[CCrmExternalChannelImport::FIELDS]['SECOND_NAME']:'';

		$fields['SUBJECT'] = Loc::getMessage('CRM_REST_EXTERNAL_CHANNEL_IMPORT_CONTACT_ACTIVITY_SUBJECT')." ".implode(' ', $name);
	}

	$fields['START_TIME'] = ConvertTimeStamp((time() + \CTimeZone::GetOffset()), 'FULL', SITE_ID);
}