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The SongCount field is not mapped during migrations. Working on changes to the StoreContext classes. These changes will calculate the song count for the album, artist, genre, and year records when querying data. The other change is to check to see if the record exist in the first place before querying using a left join. #47

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This commit is contained in:
amazing-username
2019-05-25 03:06:04 +00:00
parent dd89b97997
commit e1627b04b9
9 changed files with 59 additions and 29 deletions
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Models/Context/AlbumStoreContext.cs
+39 -10
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@@ -36,7 +36,9 @@ namespace Icarus.Models.Context
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Album";
var query = "SELECT alb.*,COUNT(*) AS SongCount FROM Album alb " +
"LEFT JOIN Song sng ON alb.AlbumId=sng.AlbumId WHERE " +
"alb.AlbumId=sng.AlbumId GROUP BY alb.AlbumId";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
using (var reader = cmd.ExecuteReader())
@@ -63,7 +65,9 @@ namespace Icarus.Models.Context
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Album WHERE AlbumId=@AlbumId";
var query = "SELECT alb.*, COUNT(*) AS SongCount FROM Album alb " +
"LEFT JOIN Song sng ON alb.AlbumId=sng.AlbumId WHERE "+
"alb.AlbumId=@AlbumId LIMIT 1";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@AlbumId", album.AlbumId);
@@ -92,11 +96,13 @@ namespace Icarus.Models.Context
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "SELECT * FROM Album WHERE Title=@Title";
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";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Title", song.AlbumTitle);
cmd.Parameters.AddWithValue("@Id", song.Id);
using (var reader = cmd.ExecuteReader())
{
@@ -118,6 +124,18 @@ 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();
@@ -139,6 +157,7 @@ namespace Icarus.Models.Context
}
}
}
*/
}
catch (Exception ex)
{
@@ -151,6 +170,18 @@ 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();
@@ -172,6 +203,7 @@ namespace Icarus.Models.Context
}
}
}
*/
}
catch (Exception ex)
{
@@ -188,14 +220,12 @@ namespace Icarus.Models.Context
using (MySqlConnection conn = GetConnection())
{
conn.Open();
var query = "INSERT INTO Album(Title, AlbumArtist, " +
"SongCount) VALUES (@Title, @AlbumArtist, " +
"@SongCount)";
var query = "INSERT INTO Album(Title, AlbumArtist)" +
" VALUES (@Title, @AlbumArtist)";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Title", album.Title);
cmd.Parameters.AddWithValue("@AlbumArtist", album.AlbumArtist);
cmd.Parameters.AddWithValue("@SongCount", album.SongCount);
cmd.ExecuteNonQuery();
}
@@ -215,13 +245,12 @@ namespace Icarus.Models.Context
{
conn.Open();
var query = "UPDATE Album SET Title=@Title, AlbumArtist=" +
"@AlbumArtist, SongCount=@SongCount WHERE AlbumId=@AlbumId";
"@AlbumArtist WHERE AlbumId=@AlbumId";
using (MySqlCommand cmd = new MySqlCommand(query, conn))
{
cmd.Parameters.AddWithValue("@Title", album.Title);
cmd.Parameters.AddWithValue("@AlbumArtist", album.AlbumArtist);
cmd.Parameters.AddWithValue("@SongCount", album.SongCount);
cmd.Parameters.AddWithValue("@AlbumId", album.AlbumId);
cmd.ExecuteNonQuery();