16 lines
430 B
Python
16 lines
430 B
Python
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from datetime import datetime
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from sqlalchemy import DateTime
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from sqlalchemy.orm import Mapped, mapped_column
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class TimestampMixin:
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"""时间字段：统一提供创建时间和更新时间。"""
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime,
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default=datetime.utcnow,
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onupdate=datetime.utcnow,
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)
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