public void UpdateChannel(RssChannelForUpdateDTO rssChannel)
{
var syndicationEntries = this.syndicationFeedAdapter.Load(rssChannel.Url);
var syndicationItemAdapters = syndicationEntries.Where(item => item.PublishDate > rssChannel.RssLastUpdatedTime);
var rssEntriesList = this.mapper.Map<IEnumerable<SyndicationItemAdapter>, List<NewRssEntryDTO>>(syndicationItemAdapters);
rssEntriesList.ForEach(r => r.RssChannelId = rssChannel.Id);
this.rssEntriesRepository.SaveToDatabase(rssEntriesList);
this.rssChannelsUpdatedRepository.SaveEvent(rssChannel.Id);
}