{"record":{"id":"fe660255709d1d1c","repo":"Tencent/WeKnora","slug":"failed-to-get-or-create-default-untagged-tag-w","errorCode":null,"errorMessage":"failed to get or create default untagged tag: %w","messagePattern":"failed to get or create default untagged tag: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/application/service/knowledge_faq.go","lineNumber":1971,"sourceCode":"\t\tif err != nil {\n\t\t\treturn \"\", fmt.Errorf(\"failed to find tag by seq_id %d: %w\", payload.TagID, err)\n\t\t}\n\t\treturn tag.ID, nil\n\t}\n\n\t// 如果提供了 tag_name，查找或创建标签\n\tif payload.TagName != \"\" {\n\t\ttag, err := s.tagService.FindOrCreateTagByName(ctx, kbID, payload.TagName)\n\t\tif err != nil {\n\t\t\treturn \"\", fmt.Errorf(\"failed to resolve tag by name '%s': %w\", payload.TagName, err)\n\t\t}\n\t\treturn tag.ID, nil\n\t}\n\n\t// 都没有提供，使用\"未分类\"标签\n\ttag, err := s.tagService.FindOrCreateTagByName(ctx, kbID, types.UntaggedTagName)\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"failed to get or create default untagged tag: %w\", err)\n\t}\n\treturn tag.ID, nil\n}\n\nfunc sanitizeFAQEntryPayload(payload *types.FAQEntryPayload) (*types.FAQChunkMetadata, error) {\n\t// 处理 AnswerStrategy，默认为 all\n\tanswerStrategy := types.AnswerStrategyAll\n\tif payload.AnswerStrategy != nil && *payload.AnswerStrategy != \"\" {\n\t\tswitch *payload.AnswerStrategy {\n\t\tcase types.AnswerStrategyAll, types.AnswerStrategyRandom:\n\t\t\tanswerStrategy = *payload.AnswerStrategy\n\t\tdefault:\n\t\t\treturn nil, werrors.NewBadRequestError(\"answer_strategy 必须是 'all' 或 'random'\")\n\t\t}\n\t}\n\tmeta := &types.FAQChunkMetadata{\n\t\tStandardQuestion:  strings.TrimSpace(payload.StandardQuestion),\n\t\tSimilarQuestions:  payload.SimilarQuestions,","sourceCodeStart":1953,"sourceCodeEnd":1989,"githubUrl":"https://github.com/Tencent/WeKnora/blob/988cbb03305e055d8ebb7d46d9ac6cc0803cd074/internal/application/service/knowledge_faq.go#L1953-L1989","documentation":"FindOrCreateTagByName failed for the default '未分类' (untagged) tag: neither the caller's tag_id nor tag_name was provided, and the fallback that ensures the default tag exists errored, so no tag can be assigned and the FAQ write is aborted.","triggerScenarios":"Thrown at internal/application/service/knowledge_faq.go:1971 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Check tag service/storage health from the wrapped error","Pre-seed the default untagged tag per knowledge base","Retry the operation; ensure-idempotency of FindOrCreate makes retries safe"],"exampleFix":null,"handlingStrategy":"retry","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"988cbb03305e055d8ebb7d46d9ac6cc0803cd074","analyzedAt":"2026-09-02T14:41:08.344Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}