27 lines
661 B
Python
27 lines
661 B
Python
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"""SQLAlchemy declarative base and common mixins."""
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from datetime import datetime
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from sqlalchemy import DateTime, func
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from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
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class Base(DeclarativeBase):
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"""Shared declarative base for all models."""
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pass
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class TimestampMixin:
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"""Adds ``created_at`` and ``updated_at`` columns with server defaults."""
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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onupdate=func.now(),
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)
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