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30 lines
1.2 KiB
30 lines
1.2 KiB
using Dapper;
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using NzbDrone.Core.Datastore;
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namespace NzbDrone.Core.Housekeeping.Housekeepers
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{
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public class CleanupOrphanedArtistMetadata : IHousekeepingTask
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{
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private readonly IMainDatabase _database;
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public CleanupOrphanedArtistMetadata(IMainDatabase database)
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{
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_database = database;
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}
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public void Clean()
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{
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using (var mapper = _database.OpenConnection())
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{
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mapper.Execute(@"DELETE FROM ""ArtistMetadata""
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WHERE ""Id"" IN (
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SELECT ""ArtistMetadata"".""Id"" FROM ""ArtistMetadata""
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LEFT OUTER JOIN ""Albums"" ON ""Albums"".""ArtistMetadataId"" = ""ArtistMetadata"".""Id""
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LEFT OUTER JOIN ""Tracks"" ON ""Tracks"".""ArtistMetadataId"" = ""ArtistMetadata"".""Id""
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LEFT OUTER JOIN ""Artists"" ON ""Artists"".""ArtistMetadataId"" = ""ArtistMetadata"".""Id""
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WHERE ""Albums"".""Id"" IS NULL AND ""Tracks"".""Id"" IS NULL AND ""Artists"".""Id"" IS NULL)");
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}
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}
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}
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}
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