public decimal ComputeAverage(Int32 Artist)
{
AvgArtistRating rating = new AvgArtistRating();
Artist artist = db.Artists.Find(Artist);
List <ArtistReview> reviewList = new List <ArtistReview>();
reviewList = db.ArtistReviews.ToList();
List <ArtistReview> selectedReviewList = new List <ArtistReview>();
selectedReviewList = db.ArtistReviews.Where(a => a.Artist.ArtistName.Contains(artist.ArtistName)).ToList();
decimal sum = new decimal();
decimal count = new decimal();
foreach (ArtistReview a in selectedReviewList)
{
sum += a.Rating;
count += 1;
}
if (count == 0)
{
return(0);
}
return(sum / count);
}
// GET: Artists/Details/5
public ActionResult Details(int?id)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
Artist artist = db.Artists.Find(id);
if (artist == null)
{
return(HttpNotFound());
}
AvgArtistRating artistRating = new AvgArtistRating();
artistRating.Artist = artist;
artistRating.AvgRating = ComputeAverage(artist.ArtistID);
return(View(artistRating));
}
// GET: Artists
public ActionResult Index(String SearchString, string error)
{
//var averageRating =
// (from r in db.ArtistReviews
// select r.Rating).Average();
//ViewBag.avgRating = averageRating;
if (error == null)
{
ViewBag.Error = "";
}
else
{
ViewBag.Error = error;
}
List <Artist> SelectedArtists = new List <Artist>();
List <Artist> TotalArtists = new List <Artist>();
TotalArtists = db.Artists.ToList();
if (SearchString == null || SearchString == "")
{
SelectedArtists = db.Artists.ToList();
ViewBag.SelectedArtistCount = "Displaying " + SelectedArtists.Count() + " of " + TotalArtists.Count() + " Records";
}
else
{
SelectedArtists = db.Artists.Where(a => a.ArtistName.Contains(SearchString)).ToList();
ViewBag.SelectedArtistCount = "Displaying " + SelectedArtists.Count() + " of " + TotalArtists.Count() + " Records";
}
SelectedArtists = SelectedArtists.OrderBy(a => a.ArtistName).ToList();
List <AvgArtistRating> ratingList = new List <AvgArtistRating>();
foreach (Artist a in SelectedArtists)
{
AvgArtistRating dude = new AvgArtistRating();
dude.Artist = a;
dude.AvgRating = ComputeAverage(a.ArtistID);
ratingList.Add(dude);
}
return(View(ratingList));
}
public ActionResult SearchResults(String SearchString, int[] SelectedGenres, String AvRating, RatingFilter SelectedRatingFilter, SortBy SelectedSortBy, SortOrder SelectedSortOrder)
{
var query = from a in db.Artists
select a;
//code for textbox
if (SearchString == null || SearchString == "")
{
query = query.Where(a => a.ArtistName != null);
}
else
{
query = query.Where(a => a.ArtistName.Contains(SearchString));
}
//code for genre filter
List <Artist> DisplayArtists = new List <Artist>();
if (SelectedGenres != null)
{
foreach (int i in SelectedGenres)
{
List <Artist> ArtistsFound = query.Where(a => a.ArtistGenres.Any(g => g.GenreID == i)).ToList();
foreach (Artist a in ArtistsFound)
{
DisplayArtists.Add(a);
}
}
}
else
{
List <Artist> ArtistsFound = query.Where(a => a.ArtistGenres.Any()).ToList();
foreach (Artist a in ArtistsFound)
{
DisplayArtists.Add(a);
}
}
var TotalArtists = db.Artists.ToList();
ViewBag.SelectedArtistCount = "Displaying " + DisplayArtists.Count() + " of " + TotalArtists.Count() + " Records";
DisplayArtists = DisplayArtists.OrderBy(a => a.ArtistName).ToList();
if (SelectedSortBy == SortBy.Artist && SelectedSortOrder == SortOrder.Ascending)
{
DisplayArtists = DisplayArtists.OrderBy(a => a.ArtistName).ToList();
}
if (SelectedSortBy == SortBy.Artist && SelectedSortOrder == SortOrder.Descending)
{
DisplayArtists = DisplayArtists.OrderByDescending(a => a.ArtistName).ToList();
}
List <AvgArtistRating> ratingList = new List <AvgArtistRating>();
foreach (Artist a in DisplayArtists)
{
AvgArtistRating dude = new AvgArtistRating();
dude.Artist = a;
dude.AvgRating = ComputeAverage(a.ArtistID);
ratingList.Add(dude);
}
if (SelectedSortBy == SortBy.Rating)
{
if (SelectedSortOrder == SortOrder.Ascending)
{
ratingList = ratingList.OrderBy(a => a.AvgRating).ToList();
}
else
{
ratingList = ratingList.OrderByDescending(a => a.AvgRating).ToList();
}
}
//TODO: code for Rating Filter for Artist
if (AvRating != null && AvRating != "")
{
Decimal decAvgRating;
try
{
decAvgRating = Convert.ToDecimal(AvRating);
}
catch
{
ViewBag.Message = AvRating + " is not a valid rating; please enter a decimal from 1.0 to 5.0";
ViewBag.AllGenres = GetAllGenres();
return(View("DetailedSearch"));
}
try
{
if (decAvgRating < 1.0m || decAvgRating > 5.0m)
{
throw new ArgumentException();
}
}
catch (ArgumentException)
{
ViewBag.Message = AvRating + " is not a valid rating; please enter a decimal from 1.0 to 5.0";
ViewBag.AllGenres = GetAllGenres();
return(View("DetailedSearch"));
}
if (SelectedRatingFilter == RatingFilter.Greater)
{
foreach (AvgArtistRating item in ratingList.ToList())
{
if (item.AvgRating < decAvgRating)
{
ratingList.Remove(item);
}
}
}
else
{
foreach (AvgArtistRating item in ratingList.ToList())
{
if (item.AvgRating > decAvgRating)
{
ratingList.Remove(item);
}
}
}
}
//TODO: figure this out.
return(View("Index", ratingList));
}
