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