public async ValueTask <bool> Update(Manga manga, bool updateChapters) { using var context = Context; var mangaService = new MangaService(context); try { context.BeginTran(); if ((await mangaService.GetSingleAsync(it => it.ObjectId == manga.ObjectId)).Version >= manga.Version) { context.RollbackTran(); return(false); } manga.UpdateTime = DateTime.Now; if (updateChapters && manga.Chapters != null && manga.Chapters.Count != 0) { var chapterService = new ChapterService(context); var imageService = new ImageService(context); var result = await chapterService.Upsert(manga.Chapters); if (result.InsertList.Count != 0) { foreach (var storageableMessage in result.InsertList) { DataFormatter.Format(storageableMessage.Item); await imageService.Upsert(storageableMessage.Item.Images); } } } if (manga.Tags != null) { var mangaTagMappingService = new MangaTagMappingService(context); await mangaTagMappingService.DeleteTagByMangaId(manga.ObjectId); var mangaTagMappings = manga.Tags.Select(tag => new MangaTagMapping() { MangaId = manga.ObjectId, TagId = tag.Key }).ToList(); if (mangaTagMappings.Count > 0) { await mangaTagMappingService.Insert(mangaTagMappings); } } await mangaService.Upsert(manga); FtsIndexService.UpdateFtsIndex(manga); context.CommitTran(); return(true); } catch (Exception e) { context.RollbackTran(); throw; } }
public async ValueTask <bool> Update(Tag tag) { using var context = Context; try { context.BeginTran(); var tagService = new TagService(context); var toBeMapping = new HashSet <long>(); var mangaTagMappingService = new MangaTagMappingService(context); var oldTag = await tagService.GetTagWithAliases(it => it.ObjectId == tag.ObjectId); // Update metadata if (oldTag == null || !await tagService.Update(tag)) { context.RollbackTran(); return(false); } // Check type of key tag == type of tag if (oldTag.Key != tag.Key) { var keyTag = await tagService.GetSingleAsync(it => it.ObjectId == tag.Key); if (tag.TypeId != keyTag?.TypeId) { context.RollbackTran(); return(false); } toBeMapping.Add(oldTag.Key); } // Recover all removed aliases foreach (var alias in oldTag.Aliases.Where(oldTagAlias => tag.Aliases.All(it => it.ObjectId != oldTagAlias.ObjectId))) { var oldTagAlias = await tagService.GetSingleAsync(it => it.ObjectId == alias.ObjectId); oldTagAlias.Key = oldTagAlias.ObjectId; if (!await tagService.Update(oldTagAlias)) { context.RollbackTran(); return(false); } } for (int i = 0; i < tag.Aliases.Count; i++) { var tagAlias = tag.Aliases[i]; var oldAlias = await tagService.GetSingleAsync(it => it.ObjectId == tagAlias.ObjectId); if (oldAlias.TypeId != tag.TypeId) { context.RollbackTran(); return(false); } oldAlias.Aliases = await tagService.GetListAsync(it => it.Key == tagAlias.ObjectId && it.Key != it.ObjectId); if (oldAlias.Aliases != null) { tag.Aliases.AddRange(oldAlias.Aliases); } if (oldAlias.Key == tag.Key) { continue; } toBeMapping.Add(oldAlias.Key); oldAlias.Key = tag.Key; if (await tagService.Update(oldAlias)) { continue; } context.RollbackTran(); return(false); } foreach (var oldKey in toBeMapping) { await mangaTagMappingService.Update(oldKey, tag.Key); } FtsIndexService.UpdateFtsIndex(tag); context.CommitTran(); return(true); } catch (Exception e) { context.RollbackTran(); throw; } }