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46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
"""Data access for the ``podcasts`` table.
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A thin async repository so the service and tasks never write raw queries. It
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only loads and persists rows; lifecycle rules and (de)serialization live in the
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service.
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"""
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from __future__ import annotations
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from .models import Podcast
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class PodcastRepository:
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"""Loads and stores :class:`Podcast` rows for one session."""
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def __init__(self, session: AsyncSession) -> None:
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self._session = session
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async def get(self, podcast_id: int) -> Podcast | None:
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return await self._session.get(Podcast, podcast_id)
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async def add(self, podcast: Podcast) -> Podcast:
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"""Persist a new row and assign its primary key."""
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self._session.add(podcast)
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await self._session.flush()
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return podcast
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async def latest_with_spec(self, search_space_id: int) -> Podcast | None:
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"""Most recent podcast in the space that has a stored brief.
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Used to seed language/voice defaults for a new podcast from what the
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user chose last.
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"""
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result = await self._session.execute(
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select(Podcast)
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.where(
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Podcast.search_space_id == search_space_id,
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Podcast.spec.is_not(None),
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)
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.order_by(Podcast.created_at.desc())
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.limit(1)
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)
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return result.scalars().first()
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