huahaofeng
/
aspnetcore
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Adding a LINQ query to get all albums to improve performance

This commit is contained in:
Praburaj 2014-08-29 13:41:43 -07:00
parent 45406bf082
commit 01c6489454
1 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
src/MusicStore/Areas/Admin/Controllers/StoreManagerController.cs
View File

@ -23,14 +23,30 @@ namespace MusicStore.Areas.Admin.Controllers
public IActionResult Index()
{
// TODO [EF] Swap to native support for loading related data when available
var albums = db.Albums;
foreach (var album in albums)
{
album.Genre = db.Genres.Single(g => g.GenreId == album.GenreId);
album.Artist = db.Artists.Single(a => a.ArtistId == album.ArtistId);
}
var albums = from album in db.Albums
join genre in db.Genres on album.GenreId equals genre.GenreId
join artist in db.Artists on album.ArtistId equals artist.ArtistId
select new Album()
{
ArtistId = album.ArtistId,
AlbumArtUrl = album.AlbumArtUrl,
AlbumId = album.AlbumId,
GenreId = album.GenreId,
Price = album.Price,
Title = album.Title,
Artist = new Artist()
{
ArtistId = album.ArtistId,
Name = artist.Name
},
Genre = new Genre()
{
GenreId = album.GenreId,
Name = genre.Name
}
};
return View(albums.ToList());
return View(albums);
}
//