FeedDiscussionsPlugin::UpdateFeed PHP Method

    protected function UpdateFeed($FeedKey, $FeedOptionKey, $FeedOptionValue = NULL)
    {
        $Feed = $this->GetFeed($FeedKey);
        if (!is_array($FeedOptionKey)) {
            $FeedOptionKey = array($FeedOptionKey => $FeedOptionValue);
        }
        $Feed = array_merge($Feed, $FeedOptionKey);
        $EncodedFeed = json_encode($Feed);
        $this->SetUserMeta(0, "Feed.{$FeedKey}", $EncodedFeed);
        // regenerate the internal feed list
        $this->GetFeeds(TRUE, TRUE);
    }