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61 lines
2.0 KiB
61 lines
2.0 KiB
using System.Collections.Generic; |
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using System.Data; |
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using System.Linq; |
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using System.Threading.Tasks; |
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using Dapper; |
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using ErsatzTV.Core.Domain; |
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using ErsatzTV.Core.Interfaces.Repositories; |
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using LanguageExt; |
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namespace ErsatzTV.Infrastructure.Data.Repositories |
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{ |
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public class ArtworkRepository : IArtworkRepository |
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{ |
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private readonly IDbConnection _dbConnection; |
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public ArtworkRepository(IDbConnection dbConnection) => _dbConnection = dbConnection; |
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public Task<List<Artwork>> GetOrphanedArtwork() => |
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_dbConnection.QueryAsync<Artwork>( |
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@"SELECT A.Id, A.Path FROM Artwork A |
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WHERE A.ArtistMetadataId IS NULL AND A.EpisodeMetadataId IS NULL |
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AND A.SeasonMetadataId IS NULL AND A.ShowMetadataId IS NULL |
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AND A.MovieMetadataId IS NULL AND A.MusicVideoMetadataId IS NULL |
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AND A.SongMetadataId IS NULL AND A.ChannelId IS NULL |
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AND NOT EXISTS (SELECT * FROM Actor WHERE Actor.ArtworkId = A.Id)") |
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.Map(result => result.ToList()); |
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public async Task<Unit> Delete(List<Artwork> artwork) |
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{ |
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IEnumerable<List<int>> chunks = Chunk(artwork.Map(a => a.Id), 100); |
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foreach (List<int> chunk in chunks) |
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{ |
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await _dbConnection.ExecuteAsync( |
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"DELETE FROM Artwork WHERE Id IN @Ids", |
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new { Ids = chunk }); |
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} |
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return Unit.Default; |
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} |
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private static IEnumerable<List<T>> Chunk<T>(IEnumerable<T> collection, int size) |
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{ |
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var count = 0; |
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var chunk = new List<T>(size); |
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foreach (T element in collection) |
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{ |
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if (count++ == size) |
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{ |
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yield return chunk; |
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chunk = new List<T>(size); |
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count = 1; |
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} |
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chunk.Add(element); |
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} |
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yield return chunk; |
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} |
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} |
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}
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