20 lines
1012 B
Python
20 lines
1012 B
Python
"""外部客户会话（企微单聊/群聊维度）。"""
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from datetime import datetime
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from sqlalchemy import String, DateTime, ForeignKey
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.models.base import Base
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class ChatSession(Base):
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__tablename__ = "chat_sessions"
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id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
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external_user_id: Mapped[str] = mapped_column(String(128), nullable=False, index=True) # 企微 external_userid
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external_name: Mapped[str | None] = mapped_column(String(128), nullable=True)
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status: Mapped[str] = mapped_column(String(32), default="open") # open / transferred / closed
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=datetime.utcnow)
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=datetime.utcnow, onupdate=datetime.utcnow)
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messages: Mapped[list["Message"]] = relationship("Message", back_populates="session", order_by="Message.id")
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