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Song Count for corresponding tables are calcuated when retrieved #47

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This commit is contained in:
amazing-username
2019-05-25 20:48:40 +00:00
parent e1627b04b9
commit c8578ae8c8
7 changed files with 478 additions and 164 deletions
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Models/Context/AlbumStoreContext.cs
+104 -32
View File
@@ -27,6 +27,36 @@ namespace Icarus.Models.Context
#region Methods
public List<Album> GetAlbumWithoutCount()
{
var albums = new List<Album>();
if (AnyAlbums())
{
try
{
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Album";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
using (var reader = cmd.ExecuteReader())
{
albums = ParseData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
}
return albums;
}
public List<Album> GetAlbums()
{
List<Album> albums = new List<Album>();
@@ -96,13 +126,54 @@ namespace Icarus.Models.Context
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT alb.*, COUNT(*) AS SongCount FROM Album alb " +
"LEFT JOIN Song sng ON alb.AlbumId=sng.AlbumId WHERE " +
"sng.Id=@Id LIMIT 1";
var query = "SELECT alb.*, 0 AS SongCount FROM Album alb " +
"WHERE alb.Title=@Title LIMIT 1";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Id", song.Id);
Console.WriteLine($"Album title {song.AlbumTitle}");
cmd.Parameters.AddWithValue("@Title", song.AlbumTitle);
using (var reader = cmd.ExecuteReader())
{
album = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
return album;
}
public Album GetAlbum(Song song, bool retrieveCount)
{
var album = new Album();
try
{
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = string.Empty;
if (retrieveCount)
{
query = "SELECT alb.*, COUNT(*) AS SongCount FROM Album alb " +
"LEFT JOIN Song sng ON alb.AlbumId=sng.AlbumId WHERE " +
"alb.Title=@Title GROUP BY alb.AlbumId LIMIT 1";
}
else
{
query = "SELECT alb.*, 0 AS SongCount FROM Album alb WHERE " +
"alb.Title=@Title LIMIT 1";
}
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Title", song.AlbumTitle);
using (var reader = cmd.ExecuteReader())
{
@@ -124,23 +195,11 @@ namespace Icarus.Models.Context
{
try
{
album = GetAlbum(album);
if (!string.IsNullOrEmpty(album.Title))
{
_logger.Info("Album exists");
return true;
}
else
{
_logger.Info("Album does not exist");
}
/**
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Album WHERE AlbumId=@AlbumId";
var query = "SELECT alb.*, 0 AS SongCount FROM Album alb WHERE alb.AlbumId=@AlbumId";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@AlbumId", album.AlbumId);
@@ -157,7 +216,6 @@ namespace Icarus.Models.Context
}
}
}
*/
}
catch (Exception ex)
{
@@ -170,23 +228,11 @@ namespace Icarus.Models.Context
{
try
{
var album = GetAlbum(song);
if (!string.IsNullOrEmpty(album.Title))
{
_logger.Info("Album exists");
return true;
}
else
{
_logger.Info("Album does not exist");
}
/**
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Album WHERE Title=@Title";
var query = "SELECT alb.*, 0 AS SongCount FROM Album alb WHERE alb.Title=@Title";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Title", song.AlbumTitle);
@@ -203,7 +249,6 @@ namespace Icarus.Models.Context
}
}
}
*/
}
catch (Exception ex)
{
@@ -334,6 +379,33 @@ namespace Icarus.Models.Context
return album;
}
private bool AnyAlbums()
{
var albums = new List<Album>();
using (var conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Album";
using (var cmd = new MySqlCommand(query, conn))
{
using (var reader = cmd.ExecuteReader())
{
albums = ParseData(reader);
}
}
}
if (albums.Count > 0)
{
return true;
}
return false;
}
#endregion
}
}
Models/Context/ArtistStoreContext.cs
+114 -64
View File
@@ -37,7 +37,10 @@ namespace Icarus.Models.Context
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Artist";
var query = "SELECT art.*, COUNT(*) AS SongCount FROM Artist " +
"art LEFT JOIN Song sng ON art.ArtistId=sng.ArtistId " +
"GROUPY BY art.ArtistId";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
using (var reader = cmd.ExecuteReader())
@@ -57,6 +60,113 @@ namespace Icarus.Models.Context
return artists;
}
public Artist GetArtist(Artist artist)
{
try
{
_logger.Info("Retrieving artist record from the database");
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT art.*, COUNT(*) AS SongCount FROM Artist " +
"art LEFT JOIN Song sng ON art.ArtistId=sng.ArtistId " +
"WHERE ArtistId=@ArtistId";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@ArtistId", artist.ArtistId);
using (var reader = cmd.ExecuteReader())
{
artist = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
return artist;
}
public Artist GetArtist(Song song)
{
Artist artist = new Artist();
try
{
_logger.Info("Retrieving artist record from the database");
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT art.*, 0 AS SongCount FROM Artist " +
"art WHERE Name=@Name";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Name", song.Artist);
using (var reader = cmd.ExecuteReader())
{
artist = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
return artist;
}
public Artist GetArtist(Song song, bool retrieveCount)
{
var artist = new Artist();
try
{
_logger.Info("Retrieving artist record from the database");
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = string.Empty;
if (retrieveCount)
{
query = "SELECT art.*, COUNT(*) AS SongCount FROM Artist " +
"art LEFT JOIN Song sng ON art.ArtistId=sng.ArtistId " +
"WHERE art.Name=@Name GROUP BY art.ArtistId LIMIT 1";
}
else
{
query = "SELECT art.*, 0 AS SongCount FROM Artist art " +
"WHERE art.Name=@Name LIMIT 1";
}
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Name", song.Artist);
using (var reader = cmd.ExecuteReader())
{
artist = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
return artist;
}
public bool DoesArtistExist(Artist artist)
{
@@ -67,7 +177,8 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Artist WHERE ArtistId=@ArtistId";
var query = "SELECT art.*, 0 AS SongCount FROM Artist art WHERE art.ArtistId=@ArtistId";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@ArtistId", artist.ArtistId);
@@ -104,7 +215,7 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Artist WHERE Name=@Name";
var query = "SELECT art.*, 0 AS SongCount FROM Artist art WHERE art.Name=@Name";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Name", song.Artist);
@@ -214,67 +325,6 @@ namespace Icarus.Models.Context
}
}
public Artist GetArtist(Artist artist)
{
try
{
_logger.Info("Retrieving artist record from the database");
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Artist WHERE ArtistId=@ArtistId";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@ArtistId", artist.ArtistId);
using (var reader = cmd.ExecuteReader())
{
artist = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
return artist;
}
public Artist GetArtist(Song song)
{
Artist artist = new Artist();
try
{
_logger.Info("Retrieving artist record from the database");
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Artist WHERE Name=@Name";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Name", song.Artist);
using (var reader = cmd.ExecuteReader())
{
artist = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
return artist;
}
private List<Artist> ParseData(MySqlDataReader reader)
{
List<Artist> artists = new List<Artist>();
Models/Context/GenreStoreContext.cs
+183 -47
View File
@@ -28,33 +28,74 @@ namespace Icarus.Models.Context
#region Methods
public List<Genre> GetGenresWithoutCount()
{
_logger.Info("Retrieving all genre records without song counts");
var genres = new List<Genre>();
if (AnyGenre())
{
try
{
using (var conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Genre";
using (var cmd = new MySqlCommand(query, conn))
{
using (var reader = cmd.ExecuteReader())
{
genres = ParseData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
}
return genres;
}
public List<Genre> GetGenres()
{
_logger.Info("Retrieving Genre records");
var genres = new List<Genre>();
try
if (AnyGenre())
{
using (var conn = GetConnection())
try
{
conn.Open();
var query = "SELECT * FROM Genre";
using (var cmd = new MySqlCommand(query, conn))
using (var conn = GetConnection())
{
using (var reader = cmd.ExecuteReader())
conn.Open();
var query = "SELECT gnr.*, COUNT(*) AS SongCount FROM Genre " +
"gnr LEFt JOIN Song sng ON gnr.GenreId=sng.GenreId " +
"GROUP BY gnr.GenreId";
using (var cmd = new MySqlCommand(query, conn))
{
genres = ParseData(reader);
using (var reader = cmd.ExecuteReader())
{
genres = ParseData(reader);
}
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
}
return genres;
@@ -64,29 +105,34 @@ namespace Icarus.Models.Context
{
_logger.Info("Retrieving Genre record");
try
if (DoesGenreExist(genre))
{
using (var conn = GetConnection())
try
{
conn.Open();
var query = "SELECT * FROM Genre WHERE GenreId=@GenreId";
using (var cmd = new MySqlCommand(query, conn))
using (var conn = GetConnection())
{
cmd.Parameters.AddWithValue("@GenreId", genre.GenreId);
conn.Open();
using (var reader = cmd.ExecuteReader())
var query = "SELECT gnr.*, COUNT(*) AS SongCount FROM Genre " +
"gnr LEFT JOIN Song sng ON gnr.GenreId=sng.GenreId " +
"WHERE gnr.GenreId=@GenreId";
using (var cmd = new MySqlCommand(query, conn))
{
genre = ParseSingleData(reader);
cmd.Parameters.AddWithValue("@GenreId", genre.GenreId);
using (var reader = cmd.ExecuteReader())
{
genre = ParseSingleData(reader);
}
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
}
return genre;
@@ -97,29 +143,84 @@ namespace Icarus.Models.Context
var genre = new Genre();
try
if (DoesGenreExist(song))
{
using (var conn = GetConnection())
try
{
conn.Open();
var query = "SELECT * FROM Genre WHERE GenreName=@GenreName";
using (var cmd = new MySqlCommand(query, conn))
using (var conn = GetConnection())
{
cmd.Parameters.AddWithValue("@GenreName", song.Genre);
conn.Open();
using (var reader = cmd.ExecuteReader())
var query = "SELECT gnr.*, 0 AS SongCount FROM Genre " +
"gnr WHERE gnr.GenreName=@GenreName";
using (var cmd = new MySqlCommand(query, conn))
{
genre = ParseSingleData(reader);
cmd.Parameters.AddWithValue("@GenreName", song.Genre);
_logger.Info($"Song genre:\n\n\n {song.Genre}");
using (var reader = cmd.ExecuteReader())
{
genre = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
}
catch (Exception ex)
return genre;
}
public Genre GetGenre(Song song, bool retrieveCount)
{
_logger.Info("Retrieving Genre record");
var genre = new Genre();
if (DoesGenreExist(song))
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
try
{
using (var conn = GetConnection())
{
conn.Open();
var query = string.Empty;
if (retrieveCount)
{
query = "SELECT gnr.*, 0 AS SongCount FROM Genre gnr " +
"LEFT JOIN Song sng ON gnr.GenreId=sng.GenreId " +
"WHERE gnr.GenreName=@GenreName GROUP BY gnr.GenreId " +
"LIMIT 1";
}
else
{
query = "SELECT gnr.*, 0 AS SongCount FROM Genre gnr " +
"WHERE gnr.GenreName=@GenreName LIMIT 1";
}
using (var cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@GenreName", song.Genre);
_logger.Info($"Song genre:\n\n\n {song.Genre}");
using (var reader = cmd.ExecuteReader())
{
genre = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
}
return genre;
@@ -135,7 +236,8 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Genre WHERE GenreId=@GenreId";
var query = "SELECT gnr.*, 0 AS SongCount FROM Genre gnr WHERE " +
"gnr.GenreId=@GenreId";
using (var cmd = new MySqlCommand(query, conn))
{
@@ -172,13 +274,12 @@ namespace Icarus.Models.Context
try
{
var genre = ParseSingleData(song);
using (var conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Genre WHERE GenreName=@GenreName";
var query = "SELECT gnr.*, 0 AS SongCount FROM Genre gnr WHERE " +
"gnr.GenreName=@GenreName";
using (var cmd = new MySqlCommand(query, conn))
{
@@ -198,7 +299,6 @@ namespace Icarus.Models.Context
}
}
}
*/
}
catch (Exception ex)
{
@@ -335,6 +435,42 @@ namespace Icarus.Models.Context
return genre;
}
private bool AnyGenre()
{
try
{
using (var conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Genre";
using (var cmd = new MySqlCommand(query, conn))
{
using (var reader = cmd.ExecuteReader())
{
var genres = ParseData(reader);
if (genres.Count > 0)
{
_logger.Info("Genres records");
return true;
}
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
_logger.Info("No genre records found");
return false;
}
#endregion
}
}
Models/Context/UserStoreContext.cs
+1
View File
@@ -40,6 +40,7 @@ namespace Icarus.Models.Context
", PhoneNumber, Firstname, Lastname, EmailVerified) " +
"VALUES(@Username, @Password, @Nickname, @Email, @PhoneNumber," +
" @Firstname, @Lastname, @EmailVerified)";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Username", user.Username);
Models/Context/YearStoreContext.cs
+57 -5
View File
@@ -40,7 +40,9 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Year";
var query = "SELECT yr.*, COUNT(*) AS SongCount FROM Year " +
"yr LEFT JOIN Song sng ON yr.YearId=sng.YearId " +
"GROUP BY gnr.YearId";
using (var cmd = new MySqlCommand(query, conn))
{
@@ -70,7 +72,9 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Year WHERE YearId=@YearId";
var query = "SELECT yr.*, COUNT(*) AS SongCount FROM Year " +
"yr LEFT JOIN Song sng ON yr.YearId=sng.YearId WHERE " +
"YearId=@YearId GROUP BY yr.YearId";
using (var cmd = new MySqlCommand(query, conn))
{
@@ -103,7 +107,53 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Year WHERE YearValue=@YearValue";
var query = "SELECT yr.*, 0 AS SongCount FROM Year " +
"yr WHERE yr.YearValue=@YearValue";
using(var cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@YearValue", song.Year);
using (var reader = cmd.ExecuteReader())
{
year = ParseSingleData(reader);
}
}
}
}
catch (Exception ex)
{
var msg = ex.Message;
_logger.Error(msg, "An error occurred");
}
return year;
}
public Year GetSongYear(Song song, bool retrieveCount)
{
var year = new Year();
_logger.Info("Retrieving year record");
try
{
using (var conn = GetConnection())
{
conn.Open();
var query = string.Empty;
if (retrieveCount)
{
query = "SELECT yr.*, COUNT(*) AS SongCount FROM Year yr " +
"LEFT JOIN Song sng ON yr.YearValue=sng.Year WHERE " +
"yr.YearValue=@YearValue GROUP BY yr.YearId LIMIT 1";
}
else
{
query = "SELECT yr.*, 0 AS SongCount FROM Year yr " +
"WHERE yr.YearValue=@YearValue LIMIT 1";
}
using(var cmd = new MySqlCommand(query, conn))
{
@@ -135,7 +185,8 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Year WHERE YearId=@YearId";
var query = "SELECT yr.*, 0 AS SongCount FROM Year yr WHERE " +
"yr.YearId=@YearId";
using (var cmd = new MySqlCommand(query, conn))
{
@@ -175,7 +226,8 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "SELECT * FROM Year WHERE YearValue=@YearValue";
var query = "SELECT yr.*, 0 AS SongCount FROM Year yr WHERE " +
"yr.YearValue=@YearValue";
using (var cmd = new MySqlCommand(query, conn))
{