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7a970ea393
PostgresUnitOfWork built its PropertyPostgresRepository without an overrides reader, so a Property re-hydrated through the unit silently dropped its Landlord Overrides (ADR-0032). The Baseline orchestrator runs through the UoW, so it scored the bare lodged EPC while the Plan modelled the override-folded Effective EPC — the two diverged (e.g. baseline effective 71/C vs plan baseline 62/D), producing "already at band C yet recommends reaching C". Wire PropertyOverridesPostgresReader into the unit's property repo (uow- independent committed reference data, read via the same session factory) so every re-hydration folds overrides, matching the live modelling path. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
80 lines
3.2 KiB
Python
80 lines
3.2 KiB
Python
from __future__ import annotations
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from collections.abc import Callable
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from types import TracebackType
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from typing import Optional
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from sqlmodel import Session
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from repositories.property_baseline.property_baseline_postgres_repository import (
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PropertyBaselinePostgresRepository,
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)
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from repositories.epc.epc_postgres_repository import EpcPostgresRepository
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from repositories.plan.plan_postgres_repository import PlanPostgresRepository
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from repositories.product.composite_product_repository import (
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catalogue_with_off_catalogue_overrides,
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)
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from repositories.property.property_overrides_postgres_reader import (
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PropertyOverridesPostgresReader,
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)
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from repositories.property.property_postgres_repository import (
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PropertyPostgresRepository,
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)
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from repositories.scenario.scenario_postgres_repository import (
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ScenarioPostgresRepository,
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)
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from repositories.solar.solar_postgres_repository import SolarPostgresRepository
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from repositories.spatial.spatial_postgres_repository import SpatialPostgresRepository
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from repositories.unit_of_work import UnitOfWork
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class PostgresUnitOfWork(UnitOfWork):
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"""Postgres-backed Unit of Work: one ``Session``, all repos bound to it.
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Built from a session factory (a module-scoped engine + sessionmaker in
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production, ADR-0012) so the connection pool is reused across warm Lambda
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invocations. The session is opened on ``__enter__`` and closed on
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``__exit__``; a fresh instance is one single-use unit.
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"""
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def __init__(self, session_factory: Callable[[], Session]) -> None:
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self._session_factory = session_factory
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def __enter__(self) -> "PostgresUnitOfWork":
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self._session = self._session_factory()
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epc_repo = EpcPostgresRepository(self._session)
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spatial_repo = SpatialPostgresRepository(self._session)
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# Fold Landlord Overrides onto the Effective EPC on every re-hydration
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# (ADR-0032), so what the Baseline orchestrator scores off ``uow.property``
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# matches what the Plan was modelled from. The reader is uow-independent —
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# ``property_overrides`` is committed reference data — so it opens its own
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# short read session per call via the same session factory.
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overrides_reader = PropertyOverridesPostgresReader(self._session_factory)
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self.property = PropertyPostgresRepository(
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self._session, epc_repo, spatial_repo, overrides_reader
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)
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self.epc = epc_repo
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self.solar = SolarPostgresRepository(self._session)
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self.spatial = spatial_repo
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self.property_baseline = PropertyBaselinePostgresRepository(self._session)
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self.scenario = ScenarioPostgresRepository(self._session)
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self.product = catalogue_with_off_catalogue_overrides(self._session)
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self.plan = PlanPostgresRepository(self._session)
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return self
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def __exit__(
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self,
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exc_type: Optional[type[BaseException]],
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exc: Optional[BaseException],
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tb: Optional[TracebackType],
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) -> None:
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try:
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self._session.rollback()
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finally:
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self._session.close()
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def commit(self) -> None:
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self._session.commit()
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def rollback(self) -> None:
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self._session.rollback()
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