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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/ArtistStoreContext.cs
+114 -64
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@@ -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>();