PMFlow/backend/app/models/qa_session.py

23 lines
927 B
Python

"""QA 会话模型。"""
from __future__ import annotations
from typing import Optional
from sqlalchemy import BigInteger, Integer, TIMESTAMP, VARCHAR
from sqlalchemy.orm import Mapped, mapped_column
from .base import Base
class QASession(Base):
__tablename__ = "qa_sessions"
id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
user_id: Mapped[Optional[int]] = mapped_column(BigInteger, nullable=True, index=True)
title: Mapped[str] = mapped_column(VARCHAR(120), nullable=False, default="新会话")
project_id: Mapped[Optional[int]] = mapped_column(BigInteger, nullable=True, index=True)
started_at: Mapped[Optional[TIMESTAMP]] = mapped_column(TIMESTAMP, nullable=True, index=True)
last_message_at: Mapped[Optional[TIMESTAMP]] = mapped_column(TIMESTAMP, nullable=True, index=True)
message_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0)