Remove nonsensical user_id filter#484
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tisnik merged 1 commit intolightspeed-core:mainfrom Sep 2, 2025
Merged
Conversation
When checking whether an existing conversation already exists before persisting user conversation details, the `user_id` filter is unnecessary - the `conversation_id` is already unique, and ownership has already been validated in prior steps. This change removes the redundant `user_id` filter from the query.
Contributor
WalkthroughThe lookup for an existing UserConversation in persist_user_conversation_details now filters only by conversation id, not by both id and user_id. Update and create paths remain unchanged, and the session is still committed. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant Client
participant Endpoint as query.persist_user_conversation_details
participant DB as Database
Client->>Endpoint: persist_user_conversation_details(user_id, conversation_id, ...)
Note over Endpoint: Check existing conversation by id only
Endpoint->>DB: SELECT * FROM UserConversation WHERE id = :conversation_id
alt Found
DB-->>Endpoint: existing_conversation
Note over Endpoint: Update last_used_model/provider, last_message_at, increment message_count
Endpoint->>DB: UPDATE UserConversation SET ...
else Not Found
DB-->>Endpoint: None
Note over Endpoint: Create new UserConversation with provided user_id
Endpoint->>DB: INSERT INTO UserConversation (...)
end
Endpoint->>DB: COMMIT
DB-->>Endpoint: OK
Endpoint-->>Client: Return updated/created details
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Possibly related PRs
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Actionable comments posted: 0
🧹 Nitpick comments (2)
src/app/endpoints/query.py (2)
83-85: Prefer primary-key load via session.get for clarity and efficiency.Apply:
- existing_conversation = ( - session.query(UserConversation).filter_by(id=conversation_id).first() - ) + existing_conversation = session.get(UserConversation, conversation_id)
100-105: Make updates atomic to prevent lost increments under concurrent requests.Two workers can overwrite message_count or last_message_at. Use a single SQL UPDATE with a DB-side increment and timestamp.
Apply:
- else: - existing_conversation.last_used_model = model - existing_conversation.last_used_provider = provider_id - existing_conversation.last_message_at = datetime.now(UTC) - existing_conversation.message_count += 1 + else: + session.execute( + update(UserConversation) + .where(UserConversation.id == conversation_id) + .values( + last_used_model=model, + last_used_provider=provider_id, + last_message_at=func.now(), + message_count=UserConversation.message_count + 1, + ) + )Add import (outside this hunk):
+from sqlalchemy import update, func
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src/app/endpoints/query.py (1)
src/models/database/conversations.py (1)
UserConversation(11-36)
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🔇 Additional comments (1)
src/app/endpoints/query.py (1)
83-85: Ensure ownership validation before persisting conversation details
Confirm that every call to persist_user_conversation_details —in src/app/endpoints/query.py (around line 242) and src/app/endpoints/streaming_query.py (around line 652)—occurs only after the user’s ownership of the conversation has been validated.
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Description
When checking whether an existing conversation already exists before persisting user conversation details, the
user_idfilter is unnecessary - theconversation_idis already unique, and ownership has already been validated in prior steps.This change removes the redundant
user_idfilter from the query.Inspired by this comment
Type of change
Related Tickets & Documents
Checklist before requesting a review
Testing
Tested manually. User conversations are still persisted correctly. Unit tests are still passing
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