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[postgres-Server-V2] fix: pk conflict error in chapter download (still not working though)

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Alessandro Benetton 2025-02-02 00:18:57 +01:00
parent ef7ebf022d
commit 6315940cd6
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1 changed files with 15 additions and 4 deletions
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19
API/Schema/Jobs/DownloadNewChaptersJob.cs
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@ -12,11 +12,22 @@ public class DownloadNewChaptersJob(ulong recurrenceMs, string mangaId, string?
protected override IEnumerable<Job> RunInternal(PgsqlContext context) protected override IEnumerable<Job> RunInternal(PgsqlContext context)
{ {
Manga m = Manga ?? context.Manga.Find(MangaId)!; /*
MangaConnector connector = m.MangaConnector ?? context.MangaConnectors.Find(m.MangaConnectorId)!; * For some reason, directly using Manga from above instead of finding it again causes DBContext to consider
Chapter[] newChapters = connector.GetNewChapters(m); * Manga as a new entity and Postgres throws a Duplicate PK exception.
* m.MangaConnector does not have this issue (IDK why).
*/
Manga m = context.Manga.Find(MangaId)!;
MangaConnector connector = context.MangaConnectors.Find(m.MangaConnectorId)!;
// This gets all chapters that are not downloaded
Chapter[] allNewChapters = connector.GetNewChapters(m);
// This filters out chapters that are not downloaded but already exist in the DB
string[] chapterIds = context.Chapters.Where(chapter => chapter.ParentMangaId == m.MangaId).Select(chapter => chapter.ChapterId).ToArray();
Chapter[] newChapters = allNewChapters.Where(chapter => !chapterIds.Contains(chapter.ChapterId)).ToArray();
context.Chapters.AddRangeAsync(newChapters).Wait(); context.Chapters.AddRangeAsync(newChapters).Wait();
context.SaveChangesAsync().Wait(); context.SaveChangesAsync().Wait();
return newChapters.Select(chapter => new DownloadSingleChapterJob(chapter.ChapterId, this.JobId));
return allNewChapters.Select(chapter => new DownloadSingleChapterJob(chapter.ChapterId, this.JobId));
} }
} }