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- # -*- coding: utf-8 -*-
- """答疑会话：记录用户与数字人的问答历史"""
- from datetime import datetime
- from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey
- from backend.database import Base
- class QASession(Base):
- __tablename__ = "qa_sessions"
- id = Column(Integer, primary_key=True, index=True)
- user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
- question = Column(Text, nullable=False)
- answer = Column(Text, nullable=True)
- created_at = Column(DateTime, default=datetime.utcnow)
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