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Remove duplicate /Similar endpoints and add poor matching for artists and albums

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This commit is contained in:
cvium
2020-11-09 20:15:15 +01:00
parent 96dcd9c87e
commit b99519898d
4 changed files with 90 additions and 419 deletions
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28
Emby.Server.Implementations/Data/SqliteItemRepository.cs
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@@ -2403,11 +2403,11 @@ namespace Emby.Server.Implementations.Data
if (string.IsNullOrEmpty(item.OfficialRating))
{
builder.Append("((OfficialRating is null) * 10)");
builder.Append("(OfficialRating is null * 10)");
}
else
{
builder.Append("((OfficialRating=@ItemOfficialRating) * 10)");
builder.Append("(OfficialRating=@ItemOfficialRating * 10)");
}
if (item.ProductionYear.HasValue)
@@ -2416,8 +2416,26 @@ namespace Emby.Server.Implementations.Data
builder.Append("+(Select Case When Abs(COALESCE(ProductionYear, 0) - @ItemProductionYear) < 5 Then 5 Else 0 End )");
}
//// genres, tags
builder.Append("+ ((Select count(CleanValue) from ItemValues where ItemId=Guid and CleanValue in (select CleanValue from itemvalues where ItemId=@SimilarItemId)) * 10)");
// genres, tags, studios, person, year?
builder.Append("+ (Select count(1) * 10 from ItemValues where ItemId=Guid and CleanValue in (select CleanValue from itemvalues where ItemId=@SimilarItemId))");
if (item is MusicArtist)
{
// Match albums where the artist is AlbumArtist against other albums.
// It is assumed that similar albums => similar artists.
builder.Append(
@"+ (WITH artistValues AS (
SELECT DISTINCT albumValues.CleanValue
FROM ItemValues albumValues
INNER JOIN ItemValues artistAlbums ON albumValues.ItemId = artistAlbums.ItemId
INNER JOIN TypedBaseItems artistItem ON artistAlbums.CleanValue = artistItem.CleanName AND artistAlbums.TYPE = 1 AND artistItem.Guid = @SimilarItemId
), similarArtist AS (
SELECT albumValues.ItemId
FROM ItemValues albumValues
INNER JOIN ItemValues artistAlbums ON albumValues.ItemId = artistAlbums.ItemId
INNER JOIN TypedBaseItems artistItem ON artistAlbums.CleanValue = artistItem.CleanName AND artistAlbums.TYPE = 1 AND artistItem.Guid = A.Guid
) SELECT COUNT(DISTINCT(CleanValue)) * 10 FROM ItemValues WHERE ItemId IN (SELECT ItemId FROM similarArtist) AND CleanValue IN (SELECT CleanValue FROM artistValues))");
}
builder.Append(") as SimilarityScore");
@@ -5052,7 +5070,7 @@ where AncestorIdText not null and ItemValues.Value not null and ItemValues.Type
CheckDisposed();
var commandText = "select ItemId, Name, Role, PersonType, SortOrder from People";
var commandText = "select ItemId, Name, Role, PersonType, SortOrder from People p";
var whereClauses = GetPeopleWhereClauses(query, null);