update more from/similar

MediaBrowser.Api/Library/LibraryService.cs

@@ -350,7 +350,8 @@ namespace MediaBrowser.Api.Library
                     Fields = request.Fields,
                     Id = request.Id,
                     Limit = request.Limit,
-                    UserId = request.UserId
+                    UserId = request.UserId,
+                    ExcludeArtistNames = request.ExcludeArtistNames
                 });
             }
             if (item is MusicArtist)

MediaBrowser.Api/SimilarItemsHelper.cs

@@ -25,6 +25,8 @@ namespace MediaBrowser.Api
         /// <value>The id.</value>
         [ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
         public string Id { get; set; }
+
+        public string ExcludeArtistNames { get; set; }
     }
 
     public class BaseGetSimilarItems : IReturn<ItemsResult>, IHasItemFields
@@ -70,6 +72,12 @@ namespace MediaBrowser.Api
                 Recursive = true
             };
 
+            // ExcludeArtistNames
+            if (!string.IsNullOrEmpty(request.ExcludeArtistNames))
+            {
+                query.ExcludeArtistNames = request.ExcludeArtistNames.Split('|');
+            }
+
             var inputItems = libraryManager.GetItemList(query);
 
             var items = GetSimilaritems(item, libraryManager, inputItems, getSimilarityScore)

MediaBrowser.Api/UserLibrary/BaseItemsRequest.cs

@@ -266,6 +266,8 @@ namespace MediaBrowser.Api.UserLibrary
         [ApiMember(Name = "Artists", Description = "Optional. If specified, results will be filtered based on artist. This allows multiple, pipe delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
         public string Artists { get; set; }
 
+        public string ExcludeArtistNames { get; set; }
+
         [ApiMember(Name = "ArtistIds", Description = "Optional. If specified, results will be filtered based on artist. This allows multiple, pipe delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
         public string ArtistIds { get; set; }
 

MediaBrowser.Api/UserLibrary/ItemsService.cs

@@ -368,6 +368,12 @@ namespace MediaBrowser.Api.UserLibrary
                 query.ArtistNames = request.Artists.Split('|');
             }
 
+            // ExcludeArtistNames
+            if (!string.IsNullOrEmpty(request.ExcludeArtistNames))
+            {
+                query.ExcludeArtistNames = request.ExcludeArtistNames.Split('|');
+            }
+
             // Albums
             if (!string.IsNullOrEmpty(request.Albums))
             {

MediaBrowser.Controller/Entities/InternalItemsQuery.cs

@@ -138,6 +138,7 @@ namespace MediaBrowser.Controller.Entities
 
         public string[] AlbumNames { get; set; }
         public string[] ArtistNames { get; set; }
+        public string[] ExcludeArtistNames { get; set; }
         public string AncestorWithPresentationUniqueKey { get; set; }
 
         public bool GroupByPresentationUniqueKey { get; set; }
@@ -153,6 +154,7 @@ namespace MediaBrowser.Controller.Entities
 
             AlbumNames = new string[] { };
             ArtistNames = new string[] { };
+            ExcludeArtistNames = new string[] { };
             ExcludeProviderIds = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
 
             BlockUnratedItems = new UnratedItem[] { };

MediaBrowser.Server.Implementations/Persistence/SqliteItemRepository.cs

@@ -2883,6 +2883,20 @@ namespace MediaBrowser.Server.Implementations.Persistence
                 whereClauses.Add(clause);
             }
 
+            if (query.ExcludeArtistNames.Length > 0)
+            {
+                var clauses = new List<string>();
+                var index = 0;
+                foreach (var artist in query.ExcludeArtistNames)
+                {
+                    clauses.Add("@ExcludeArtistName" + index + " not in (select CleanValue from itemvalues where ItemId=Guid and Type <= 1)");
+                    cmd.Parameters.Add(cmd, "@ExcludeArtistName" + index, DbType.String).Value = artist.RemoveDiacritics();
+                    index++;
+                }
+                var clause = "(" + string.Join(" AND ", clauses.ToArray()) + ")";
+                whereClauses.Add(clause);
+            }
+
             if (query.GenreIds.Length > 0)
             {
                 // Todo: improve without having to do this