/// <summary>
/// Reads channels from database by inputted date
/// </summary>
/// <param name="date"></param>
/// <returns>Collection of channels</returns>
public NewsCollection GetChannelsFromDbByDate(string date)
{
var newsCollection = new NewsCollection();
if (Config == null)
{
return(newsCollection);
}
foreach (ChannelElement channel in Config.Channels)
{
newsCollection.Channels.Add(GetArticlesByDateAndChannel(channel, date));
}
return(newsCollection);
}
/// <summary>
/// Checks each RSS channel for new articles
/// Writes new articles to database
/// </summary>
public static void PersistNewArticles()
{
var config = ConfigurationManager.GetSection("rssChannelsService") as RssChannelsServiceSection;
var allChannels = new NewsCollection();
if (config == null)
{
return;
}
foreach (ChannelElement channel in config.Channels)
{
var currentChannel = new Channel
{
Name = channel.Name,
Icon = channel.Icon,
Template = channel.Template
};
var xDoc = XDocument.Load(channel.Url);
var items = (from x in xDoc.Descendants("item")
select new
{
title = x.Element("title").Value,
body = x.Element("description").Value,
url = x.Element("link").Value,
pubDate = x.Element("pubDate").Value,
}
);
currentChannel.Articles.AddRange(items.Select(i => new Article
{
Channel = channel.Name,
Title = i.title,
Body = i.body,
Url = i.url,
PublishDate = DateTime.Parse(i.pubDate).ToString(CultureInfo.InvariantCulture)
}));
allChannels.Channels.Add(currentChannel);
foreach (var currentArticle in currentChannel.Articles)
{
var channelName = currentChannel.Name;
var title = currentArticle.Title;
var link = currentArticle.Url;
var pubDate = currentArticle.PublishDate;
var description = currentArticle.Body;
if (ChannelsDbService.IsArticleUnique(title))
{
ChannelsDbService.AddNewArticle(channelName, title, link, pubDate, description);
}
}
}
}