public function updateYnnewsFeeds()

    {

        $numberOfFeedsForEachUpdate = 5;

        $feedList = $this->feedService->getFeedsForUpdate($numberOfFeedsForEachUpdate);

        foreach ($feedList as $feed) {

            $this->feedService->updateFeedUpdateDatetime(time(), $feed['id']);

            $this->feedService->updateFeed($feed['id']);

        }

        //auto delete old news here ?

    }

WHERE THE SCRIPT FOR DELETING NEW??