ImportSendingService::getLastDateCreate

private function getLastDateCreate(): ?DateTime
{
	if (isset($this->lastDateCreate))
	{
		return $this->lastDateCreate;
	}

	$result = MessageTable::query()
		->setSelect(['DATE_CREATE'])
		->where('CHAT_ID', (int)$this->chat['ID'])
		->setOrder(['DATE_CREATE' => 'DESC'])
		->setLimit(1)
		->fetch()
	;

	$this->lastDateCreate = $result ? $result['DATE_CREATE'] : null;

	return $this->lastDateCreate;
}