AllViewedPlugin::getCommentCountSince PHP Method

    private function getCommentCountSince($DiscussionID, $DateAllViewed)
    {
        // Validate DiscussionID
        $DiscussionID = (int) $DiscussionID;
        if (!$DiscussionID) {
            throw new Exception('A valid DiscussionID is required in GetCommentCountSince.');
        }
        // Get new comment count
        return Gdn::database()->sql()->from('Comment c')->where('DiscussionID', $DiscussionID)->where('DateInserted >', Gdn_Format::toDateTime($DateAllViewed))->getCount();
    }