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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 CleanupOrphanedMetadataFiles : IHousekeepingTask
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{
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private readonly IMainDatabase _database;
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public CleanupOrphanedMetadataFiles(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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DeleteOrphanedByArtist();
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DeleteOrphanedByAlbum();
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DeleteOrphanedByTrackFile();
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DeleteWhereTrackFileIsZero();
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}
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private void DeleteOrphanedByArtist()
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{
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var mapper = _database.GetDataMapper();
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mapper.ExecuteNonQuery(@"DELETE FROM MetadataFiles
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WHERE Id IN (
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SELECT MetadataFiles.Id FROM MetadataFiles
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LEFT OUTER JOIN Artists
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ON MetadataFiles.ArtistId = Artists.Id
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WHERE Artists.Id IS NULL)");
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}
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private void DeleteOrphanedByAlbum()
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{
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var mapper = _database.GetDataMapper();
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mapper.ExecuteNonQuery(@"DELETE FROM MetadataFiles
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WHERE Id IN (
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SELECT MetadataFiles.Id FROM MetadataFiles
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LEFT OUTER JOIN Albums
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ON MetadataFiles.AlbumId = Albums.Id
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WHERE MetadataFiles.AlbumId > 0
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AND Albums.Id IS NULL)");
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}
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private void DeleteOrphanedByTrackFile()
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{
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var mapper = _database.GetDataMapper();
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mapper.ExecuteNonQuery(@"DELETE FROM MetadataFiles
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WHERE Id IN (
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SELECT MetadataFiles.Id FROM MetadataFiles
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LEFT OUTER JOIN TrackFiles
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ON MetadataFiles.TrackFileId = TrackFiles.Id
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WHERE MetadataFiles.TrackFileId > 0
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AND TrackFiles.Id IS NULL)");
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}
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private void DeleteWhereTrackFileIsZero()
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{
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var mapper = _database.GetDataMapper();
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mapper.ExecuteNonQuery(@"DELETE FROM MetadataFiles
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WHERE Id IN (
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SELECT Id FROM MetadataFiles
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WHERE Type IN (2, 5)
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AND TrackFileId = 0)");
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}
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}
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}
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