Tencent/WeKnora · error

failed to get tenant: %w

Error message

failed to get tenant: %w

What it means

GetChatHistoryKBStats needs the tenant record to read its ChatHistoryConfig. It calls tenantService.GetTenantByID with the tenant ID from context; any failure fetching the tenant is wrapped here, so stats cannot be computed.

Source

Thrown at internal/application/service/message.go:449

		return
	}

	if len(knowledgeIDs) == 0 {
		return
	}

	logger.Infof(ctx, "Deleting %d chat history knowledge entries for session %s", len(knowledgeIDs), sessionID)
	if err := s.knowService.DeleteKnowledgeList(ctx, knowledgeIDs); err != nil {
		logger.Warnf(ctx, "Failed to batch delete chat history knowledge for session %s: %v", sessionID, err)
	}
}

// GetChatHistoryKBStats returns statistics about the chat history knowledge base.
func (s *messageService) GetChatHistoryKBStats(ctx context.Context) (*types.ChatHistoryKBStats, error) {
	tenantID := types.MustTenantIDFromContext(ctx)
	tenant, err := s.tenantService.GetTenantByID(ctx, tenantID)
	if err != nil {
		return nil, fmt.Errorf("failed to get tenant: %w", err)
	}

	stats := &types.ChatHistoryKBStats{}
	cfg := tenant.ChatHistoryConfig
	if cfg == nil || !cfg.Enabled {
		return stats, nil
	}

	stats.Enabled = true
	stats.EmbeddingModelID = cfg.EmbeddingModelID
	stats.KnowledgeBaseID = cfg.KnowledgeBaseID

	if cfg.KnowledgeBaseID == "" {
		return stats, nil
	}

	// Fetch KB info and fill counts (KnowledgeCount is gorm:"-", needs FillKnowledgeBaseCounts)
	kb, err := s.kbService.GetKnowledgeBaseByID(ctx, cfg.KnowledgeBaseID)

View on GitHub (pinned to 988cbb0330)

Solutions

1. Check the wrapped error from GetTenantByID for the root cause (not found vs connection failure).
2. Verify types.MustTenantIDFromContext(ctx) yields a valid, existing tenant ID.
3. Confirm the tenant exists in the database and was not soft-deleted.
4. If not-found, re-authenticate so the context carries a current tenant ID.

Example fix

// before
tenantID := types.MustTenantIDFromContext(ctx)
tenant, err := s.tenantService.GetTenantByID(ctx, tenantID)
if err != nil {
    return nil, fmt.Errorf("failed to get tenant: %w", err)
}
// after
tenantID, err := types.TenantIDFromContext(ctx)
if err != nil {
    return nil, fmt.Errorf("missing tenant in context: %w", err)
}
tenant, err := s.tenantService.GetTenantByID(ctx, tenantID)
if err != nil {
    return nil, fmt.Errorf("failed to get tenant: %w", err)
}

tenantID, ok := types.TenantIDFromContext(ctx)
if !ok || tenantID == 0 { return fmt.Errorf("no tenant in context") }

func hasTenant(ctx context.Context) bool {
    id, err := types.TenantIDFromContext(ctx)
    return err == nil && id != 0
}

stats, err := svc.GetChatHistoryKBStats(ctx)
if err != nil && strings.Contains(err.Error(), "failed to get tenant") {
    // tenant missing/deleted: force re-auth or return 404 to client
}

When it happens

Trigger: Calling GetChatHistoryKBStats with a context whose tenant ID does not exist, has been deleted, or when the tenant service/repository errors (DB down, timeout, permission issue).

Common situations: Stale tenant ID in auth context after tenant deletion; cross-tenant request where the tenant row was never created; tenant service DB outage.

Related errors

• failed to ensure FAQ knowledge: %w
• failed to create chunk: %w
• failed to update chunk status: %w
• failed to list FAQ chunks: %w
• failed to build tag map: %w

AI-assisted analysis of Tencent/WeKnora@988cbb0330 (2026-09-02). Data as JSON: /api/errors/83565edc175575ef. Report an issue: GitHub.