private void LoadPodcastAlbums(PodcastArticle article)
        {
            MsSql db = new MsSql(_connectionString);
              SqlCommand command = db.GetNewCommand("GetPodcastAlbums", CommandType.StoredProcedure);

              try
              {
            command.Parameters.Add("@ArticleId", SqlDbType.BigInt).Value = article.Id;
            db.AddErrorHandlingParamsToSqlCommand(command);

            SqlDataReader reader = command.ExecuteReader();
            try
            {
              int ordId = reader.GetOrdinal("Id");
              int ordArtist = reader.GetOrdinal("Artist");
              int ordCaption = reader.GetOrdinal("Caption");
              int ordCoverImageFileName = reader.GetOrdinal("CoverImageFileName");
              int ordLabel = reader.GetOrdinal("Label");
              int ordTitle = reader.GetOrdinal("Title");
              int ordYear = reader.GetOrdinal("Year");

              const int EXPECTED_ALBUM_COUNT = 2;
              int albumCount = 0;
              while (reader.Read())
              {
            //Increment our album counter
            albumCount++;

            //Make sure that we haven't surpassed the expected album count
            if (albumCount > EXPECTED_ALBUM_COUNT)
              throw new PodcastAlbumCountException(albumCount, EXPECTED_ALBUM_COUNT);

            Album newAlbum = new Album()
            {
              Artist = reader.GetString(ordArtist),
              Caption = reader.GetString(ordCaption),
              CoverImageFileName = reader.GetString(ordCoverImageFileName),
              Id = reader.GetInt64(ordId),
              Label = reader.GetString(ordLabel),
              Title = reader.GetString(ordTitle),
              Year = reader.GetInt32(ordYear)
            };

            //Get listen URLs for the album
            LoadAlbumUrls(newAlbum);

            //Assign the album to the provided article
            if (albumCount == 1)
            {
              //Podcast album #1
              article.Album1 = newAlbum;
            }
            else
            {
              //Podcast album #2
              article.Album2 = newAlbum;
            }
              }

              if (albumCount != EXPECTED_ALBUM_COUNT)
            throw new PodcastAlbumCountException(albumCount, EXPECTED_ALBUM_COUNT);
            }
            finally
            {
              reader.Close();
            }

            db.FreeCommand(command);
              }
              catch (Exception ex)
              {
            db.FreeCommand(command, false);
            throw ex;
              }
        }
        private List<NewsArticle> SelectArticles(bool podcastsOnly)
        {
            List<NewsArticle> result = new List<NewsArticle>();

              MsSql db = new MsSql(_connectionString);

              //Call the appropriate stored procedure, based on whether or not we want news and podcasts,
              //or just podcasts only
              string storedProcedureName;
              if (podcastsOnly)
            storedProcedureName = "GetPodcasts";
              else
            storedProcedureName = "GetArticles";

              SqlCommand command = db.GetNewCommand(storedProcedureName, CommandType.StoredProcedure);

              try
              {
            db.AddErrorHandlingParamsToSqlCommand(command);

            SqlDataReader reader = command.ExecuteReader();
            try
            {
              int ordArticleId = reader.GetOrdinal("Id");
              int ordPostDateTime = reader.GetOrdinal("PostDateTime");
              int ordBodyText = reader.GetOrdinal("BodyText");
              int ordDownloadDisplayText = reader.GetOrdinal("DownloadDisplayText");
              int ordDownloadUrl = reader.GetOrdinal("DownloadUrl");

              while (reader.Read())
              {
            //Check to see if we have podcast information for the current record
            NewsArticle newArticle;
            if ((reader[ordDownloadDisplayText] == DBNull.Value) || (reader[ordDownloadUrl] == DBNull.Value))
            {
              //We are missing podcast download info, so we have a news article
              newArticle = new NewsArticle();
            }
            else
            {
              //We have download info, so we have a podcast article
              newArticle = new PodcastArticle()
              {
                //Grab the URL download info while we're here
                PodcastUrl = new DynamicUrl()
                {
                  Url = reader.GetString(ordDownloadUrl),
                  DisplayText = reader.GetString(ordDownloadDisplayText)
                }
              };
            }

            newArticle.Id = reader.GetInt64(ordArticleId);
            newArticle.PostDateTime = reader.GetDateTime(ordPostDateTime);
            newArticle.BodyText = reader.GetString(ordBodyText);

            if (newArticle is PodcastArticle)
            {
              //We need to retrieve album information for the podcast
              LoadPodcastAlbums((PodcastArticle)newArticle);
            }

            //Add the new article to the result
            result.Add(newArticle);
              }
            }
            finally
            {
              reader.Close();
            }

            db.FreeCommand(command);
              }
              catch (Exception ex)
              {
            db.FreeCommand(command, false);
            throw ex;
              }

              return result;
        }
Ejemplo n.º 3
0
 public ViewPodcast()
 {
     Article = new PodcastArticle();
       ImageRelativeDirPath = string.Empty;
       PodcastRelativeDirPath = string.Empty;
 }