Class ChatMessage

backend/app/models/audit.py:46–64

Web chat message between user and agent.

class ChatMessage(Base):
    """Web chat message between user and agent."""

    __tablename__ = "chat_messages"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    agent_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("agents.id"), nullable=False, index=True)
    user_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False)
    role: Mapped[str] = mapped_column(
        Enum("user", "assistant", "system", "tool_call", name="chat_role_enum"),
        nullable=False,
    )
    content: Mapped[str] = mapped_column(Text, nullable=False)
    conversation_id: Mapped[str] = mapped_column(String(200), default="web", nullable=False, index=True)
    # Participant identity (unified User/Agent identity)
    participant_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("participants.id"), nullable=True)
    # Model thinking process
    thinking: Mapped[str | None] = mapped_column(Text, nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), index=True)


class EnterpriseInfo(Base):