SQLAlchemy Base Mixins (orm/base.py)

Abstract base class and mixins adding created/updated timestamps and soft‑delete flag to SQLAlchemy ORM models.

# Source: https://github.com/mperkins0155/MIRIX | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
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import datetime as dt
from datetime import datetime
from typing import Optional

from sqlalchemy import Boolean, DateTime, String, func, text
from sqlalchemy.orm import (
    DeclarativeBase,
    Mapped,
    declarative_mixin,
    declared_attr,
    mapped_column,
)


class Base(DeclarativeBase):
    """absolute base for sqlalchemy classes"""


@declarative_mixin
class CommonSqlalchemyMetaMixins(Base):
    __abstract__ = True

    created_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True), server_default=func.now())
    updated_at: Mapped[Optional[datetime]] = mapped_

... (truncated -- full source via MCP)