38 lines
846 B
Python
38 lines
846 B
Python
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from __future__ import annotations
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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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"""Base class for all ORM models."""
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pass
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class TimestampMixin:
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"""Adds created_at and updated_at timestamps."""
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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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nullable=False,
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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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nullable=False,
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)
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class SoftDeleteMixin:
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"""Adds soft delete timestamp column."""
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deleted_at: Mapped[datetime | None] = mapped_column(
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DateTime(timezone=True),
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nullable=True,
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)
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