/// <summary>
/// Getting news from all feeds. Comparing them with the news, that already stored in DB and adding absent.
/// </summary>
public bool RefreshNews()
{
try
{
foreach (Feed feed in this.dataContext.Feeds)
{
try
{
XmlReader reader = XmlReader.Create(feed.Url);
try
{
SyndicationFeed synFeed = SyndicationFeed.Load(reader);
foreach (SyndicationItem item in synFeed.Items)
{
if (this.dataContext.News.Where(n => n.Idfeed == feed.Id).Where(n => n.Name.Equals(item.Title.Text)).Count() == 0)
{
News news = new News();
news.Name = item.Title.Text;
news.Url = item.Links[0].Uri.ToString();
news.Idfeed = feed.Id;
this.dataContext.News.Add(news);
}
}
}
catch { continue; }
reader.Close();
}
catch { continue; }
}
this.dataContext.SaveChanges();
this.FillNews();
return true;
}
catch { return false; }
}
/// <summary>
/// Getting news from specific feed and storing them in DB. If at least one news already present in DB - work of the method will be canceled.
/// </summary>
public bool GetNews(int FeedID)
{
try
{
this.FillNews(FeedID);
if (this.News.Where(n=>n.Idfeed == FeedID).Count() > 0)
{
return true;
}
else
{
XmlReader reader = XmlReader.Create(this.dataContext.Feeds.Where(f => f.Id == FeedID).First().Url);
SyndicationFeed synFeed = SyndicationFeed.Load(reader);
foreach (SyndicationItem item in synFeed.Items)
{
News news = new News();
news.Name = item.Title.Text;
news.Url = item.Links[0].Uri.ToString();
news.Idfeed = FeedID;
this.dataContext.News.Add(news);
}
reader.Close();
this.dataContext.SaveChanges();
this.FillNews(FeedID);
return true;
}
}
catch { return false; }
}