PMFlow/backend/app/models/signal_edit.py

25 lines
964 B
Python

"""信号编辑历史模型"""
from __future__ import annotations
from datetime import datetime
from typing import Optional
from sqlalchemy import BigInteger, ForeignKey, Integer, TEXT, TIMESTAMP, VARCHAR
from sqlalchemy.orm import Mapped, mapped_column
from .base import Base
class SignalEdit(Base):
__tablename__ = "signal_edits"
id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
signal_id: Mapped[int] = mapped_column(
BigInteger, ForeignKey("signals.id"), nullable=False, index=True
)
field: Mapped[str] = mapped_column(VARCHAR(80), nullable=False)
old_value: Mapped[Optional[str]] = mapped_column(TEXT, nullable=True)
new_value: Mapped[Optional[str]] = mapped_column(TEXT, nullable=True)
edited_by: Mapped[Optional[int]] = mapped_column(BigInteger, ForeignKey("users.id"), nullable=True, index=True)
edited_at: Mapped[Optional[datetime]] = mapped_column(TIMESTAMP, nullable=True)