Implementation:Infiniflow Ragflow DialogService Update KB Selection

Knowledge Sources	RAGFlow
Domains	RAG, Knowledge_Management
Last Updated	2026-02-12 06:00 GMT

Overview

Concrete tool for updating the knowledge base selection on a chat application provided by RAGFlow DialogService.

Description

Uses DialogService.update_by_id (inherited from CommonService) to update the kb_ids field on a Dialog record. The REST endpoint validates that all referenced KB IDs exist before persisting.

Usage

Called via the same POST /v1/dialog/set endpoint with a dialog_id parameter to update an existing dialog.

Code Reference

Source Location

• Repository: ragflow
• File: api/db/services/common_service.py (update_by_id: L229-240), api/apps/dialog_app.py (L130-142)

Signature

# Uses CommonService.update_by_id
DialogService.update_by_id(pid: str, data: dict) -> int
# data = {"kb_ids": ["kb-uuid-1", "kb-uuid-2"]}

Import

from api.db.services.dialog_service import DialogService

I/O Contract

Inputs

Name	Type	Required	Description
pid	str	Yes	Dialog ID
data	dict	Yes	Update with kb_ids list

Outputs

Name	Type	Description
num	int	Rows updated (1 on success)

Usage Examples

from api.db.services.dialog_service import DialogService

DialogService.update_by_id("dialog-uuid-123", {
    "kb_ids": ["kb-uuid-1", "kb-uuid-2", "kb-uuid-3"]
})

Related Pages

Implements Principle

• Principle:Infiniflow_Ragflow_Knowledge_Base_Selection