not_enforced_fk_model.py

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#
# Licensed under the Apache License, Version 2.0 (the "License");
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#
#     http://www.apache.org/licenses/LICENSE-2.0
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from sqlalchemy import ForeignKey
from sqlalchemy.orm import DeclarativeBase
from sqlalchemy.orm import Mapped
from sqlalchemy.orm import mapped_column


class Base(DeclarativeBase):
    pass


class Singer(Base):
    __tablename__ = "singers"
    id: Mapped[str] = mapped_column(primary_key=True)
    name: Mapped[str]


class Album(Base):
    __tablename__ = "albums"
    id: Mapped[str] = mapped_column(primary_key=True)
    name: Mapped[str]
    singer_id: Mapped[str] = mapped_column(
        ForeignKey("singers.id", spanner_not_enforced=True)
    )