Model/infrastructure/postgres/landlord_water_heating_override_table.py
Jun-te Kim 3a0a122b7f Group landlord property-override enums under domain/epc/property_overrides 🟪
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 14:49:58 +00:00

69 lines
2.7 KiB
Python

"""SQLModel mirror of the ``landlord_water_heating_overrides`` Drizzle table.
The schema source of truth lives in the ``assessment-model`` TS repo
(`src/app/db/schema/landlord_overrides.ts`). The migrations are owned there;
this row class only mirrors the columns so the Python lambda can read/write.
See ADR-0003. Shape mirrors ``LandlordWallTypeOverrideRow`` -- the only
differences are the table name, the ``water_heating`` pgEnum on ``value``, and
the unique-constraint name.
"""
from datetime import datetime, timezone
from typing import ClassVar
from uuid import UUID, uuid4
from sqlalchemy import BigInteger, Column, UniqueConstraint
from sqlalchemy import Enum as SAEnum
from sqlmodel import Field, SQLModel
from domain.epc.property_overrides.water_heating_type import WaterHeatingType
from infrastructure.postgres.landlord_override_enums import override_source_sa_enum
class LandlordWaterHeatingOverrideRow(SQLModel, table=True):
__tablename__: ClassVar[str] = "landlord_water_heating_overrides" # pyright: ignore[reportIncompatibleVariableOverride]
__table_args__: ClassVar[tuple[UniqueConstraint, ...]] = ( # pyright: ignore[reportIncompatibleVariableOverride]
UniqueConstraint(
"portfolio_id",
"description",
name="landlord_water_heating_overrides_portfolio_description_unique",
),
)
id: UUID = Field(default_factory=uuid4, primary_key=True)
# bigint to match the Drizzle ``portfolio_id`` FK; SQLModel's default int
# mapping is 32-bit Integer and would overflow once portfolio IDs exceed
# 2^31. The FK to ``portfolio.id`` is enforced by the Drizzle migration,
# not declared here -- the ``portfolio`` table is not modelled in Python.
portfolio_id: int = Field(
sa_column=Column(BigInteger, nullable=False, index=True),
)
description: str = Field(nullable=False)
value: WaterHeatingType = Field(
sa_column=Column(
SAEnum(
WaterHeatingType,
name="water_heating",
values_callable=lambda cls: [m.value for m in cls], # pyright: ignore[reportUnknownLambdaType, reportUnknownMemberType, reportUnknownVariableType]
),
nullable=False,
),
)
# Shared SAEnum -- see ``landlord_override_enums`` for why this single
# instance is reused by every ``landlord_*_overrides`` row class.
source: str = Field(
sa_column=Column(override_source_sa_enum, nullable=False),
)
created_at: datetime = Field(
default_factory=lambda: datetime.now(timezone.utc),
nullable=False,
)
updated_at: datetime = Field(
default_factory=lambda: datetime.now(timezone.utc),
nullable=False,
)