From 24f679e61944756c4dbc6b0fc4dd31affbfd385a Mon Sep 17 00:00:00 2001 From: Olezhich Date: Sat, 23 Aug 2025 17:39:49 +0300 Subject: [PATCH] added async db io logic --- audiostats/db/api.py | 21 ++--- audiostats/db/repositories.py | 38 ++++++--- audiostats/db/uof.py | 17 ++-- poetry.lock | 155 +++++++++++++++++++++------------- pyproject.toml | 3 + tests/__init__.py | 2 +- tests/db_fixture.py | 98 +++++++++++++++++++-- tests/test_db_api.py | 17 ++-- 8 files changed, 244 insertions(+), 107 deletions(-) diff --git a/audiostats/db/api.py b/audiostats/db/api.py index 8e52228..a67771f 100644 --- a/audiostats/db/api.py +++ b/audiostats/db/api.py @@ -1,8 +1,8 @@ import logging -import time from collections.abc import Iterator -from sqlalchemy.orm import sessionmaker, Session +from sqlalchemy.ext.asyncio import async_sessionmaker, AsyncSession +#from sqlalchemy.orm import sessionmaker, Session from .uof import UnitOfWork from audiostats.handlers import AlbumDTO @@ -11,18 +11,15 @@ logger = logging.getLogger(__name__) class DBApi: - def __init__(self, session_factory : sessionmaker[Session]): + def __init__(self, session_factory : async_sessionmaker[AsyncSession]): self._session_factory = session_factory - def upsert_albums(self, albums : Iterator[AlbumDTO]): - with UnitOfWork(self._session_factory) as uof: - total, success = 0, 0 + async def upsert_albums(self, albums : Iterator[AlbumDTO]): + async with UnitOfWork(self._session_factory) as uow: for album in albums: - uof.albums.upsert(album) - total += 1 - success += 1 + await uow.albums.upsert(album) - def get_all_albums(self): - with UnitOfWork(self._session_factory) as uof: - return uof.albums.all() + async def get_all_albums(self): + async with UnitOfWork(self._session_factory) as uow: + return await uow.albums.all() diff --git a/audiostats/db/repositories.py b/audiostats/db/repositories.py index def9794..04968dd 100644 --- a/audiostats/db/repositories.py +++ b/audiostats/db/repositories.py @@ -1,5 +1,10 @@ +#from sqlalchemy import select +from sqlalchemy import select, delete from sqlalchemy import select -from sqlalchemy.orm import Session +from sqlalchemy.ext.asyncio import AsyncSession +from sqlalchemy.orm import selectinload + +#from sqlalchemy.orm import Session from .models import Album from audiostats.handlers import AlbumDTO @@ -8,11 +13,11 @@ class AlbumRepository: - def __init__(self, session : Session): + def __init__(self, session : AsyncSession): self._session = session - def upsert(self, album_data : AlbumDTO): - album = self.find_by_title_performer(album_data.title, album_data.performer) + async def upsert(self, album_data : AlbumDTO): + album = await self.find_by_title_performer(album_data.title, album_data.performer) if not album: album = Album() @@ -30,11 +35,20 @@ def upsert(self, album_data : AlbumDTO): album.tracks.append(track) for track in old_tracks_by_title.values(): - #album.tracks.remove(track) - self._session.delete(track) - - def find_by_title_performer(self, title : str, performer : str | None) -> Album | None: - return self._session.query(Album).filter(Album.title == title and Album.performer == performer if performer else Album.performer.is_(None)).first() - - def all(self) -> list[Album]: - return [create_album_dto_f_orm(album) for album in self._session.scalars(select(Album)).all()] + await self._session.delete(track) + + async def find_by_title_performer(self, title : str, performer : str | None) -> Album | None: + result = await self._session.execute(select(Album).where( + Album.title == title, + Album.performer == performer + ).options( + selectinload(Album.tracks) + )) + return result.scalar_one_or_none() + #return self._session.query(Album).filter(Album.title == title and Album.performer == performer if performer else Album.performer.is_(None)).first() + + async def all(self) -> list[Album]: + result = await self._session.scalars(select(Album).options( + selectinload(Album.tracks) + )) + return [create_album_dto_f_orm(album) for album in result.all()] diff --git a/audiostats/db/uof.py b/audiostats/db/uof.py index b47074c..a1177e2 100644 --- a/audiostats/db/uof.py +++ b/audiostats/db/uof.py @@ -1,4 +1,5 @@ -from sqlalchemy.orm import sessionmaker, Session +from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker +#from sqlalchemy.orm import sessionmaker, Session import logging from .repositories import AlbumRepository @@ -6,23 +7,23 @@ logger = logging.getLogger(__name__) class UnitOfWork: - def __init__(self, session_factory: sessionmaker[Session]): + def __init__(self, session_factory: async_sessionmaker[AsyncSession]): self._session_factory = session_factory - self._session : Session | None = None + self._session : AsyncSession | None = None self.albums : AlbumRepository | None = None logger.debug(f'UoF initialized: {self}') - def __enter__(self): + async def __aenter__(self): self._session = self._session_factory() self.albums = AlbumRepository(self._session) logger.debug(f'AlbumRepo initialised: {self.albums}, Current Session: {self._session}') return self - def __exit__(self, exc_type, exc_val, exc_tb): + async def __aexit__(self, exc_type, exc_val, exc_tb): if exc_type is not None: - self._session.rollback() + await self._session.rollback() else: - self._session.commit() - self._session.close() + await self._session.commit() + await self._session.close() logger.debug(f'Session closed') diff --git a/poetry.lock b/poetry.lock index a44ff19..c3b7702 100644 --- a/poetry.lock +++ b/poetry.lock @@ -1,5 +1,24 @@ # This file is automatically @generated by Poetry 2.1.3 and should not be changed by hand. +[[package]] +name = "aiosqlite" +version = "0.21.0" +description = "asyncio bridge to the standard sqlite3 module" +optional = false +python-versions = ">=3.9" +groups = ["dev"] +files = [ + {file = "aiosqlite-0.21.0-py3-none-any.whl", hash = "sha256:2549cf4057f95f53dcba16f2b64e8e2791d7e1adedb13197dd8ed77bb226d7d0"}, + {file = "aiosqlite-0.21.0.tar.gz", hash = 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a1ab795..53f8b38 100644 --- a/tests/__init__.py +++ b/tests/__init__.py @@ -1 +1 @@ -from .db_fixture import test_engine, test_sessionmaker \ No newline at end of file +from .db_fixture import test_engine, test_session_factory#, setup_database \ No newline at end of file diff --git a/tests/db_fixture.py b/tests/db_fixture.py index 79f1d58..6788c8d 100644 --- a/tests/db_fixture.py +++ b/tests/db_fixture.py @@ -1,22 +1,104 @@ +import asyncio import logging import pytest -from sqlalchemy import create_engine +#from sqlalchemy import create_engine +from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine, async_sessionmaker, AsyncSession from sqlalchemy.orm import sessionmaker from audiostats.db.models import Base logger = logging.getLogger(__name__) +# @pytest.fixture(scope="session") +# def test_engine(): +# engine = create_engine("sqlite:///:memory:", connect_args={"check_same_thread": False}) +# Base.metadata.create_all(engine) +# yield engine +# engine.dispose() + +# @pytest.fixture(scope="session") +# def test_sessionmaker(test_engine): +# sessionfactory = sessionmaker(bind=test_engine) +# logger.debug(f'session type: {type(sessionfactory)}') +# return sessionfactory + +# @pytest.fixture(scope="function") +# def event_loop(): +# loop = asyncio.new_event_loop() +# asyncio.set_event_loop(loop) +# yield loop +# loop.close() +# +# @pytest.fixture(scope='function') +# async def test_engine(): +# engine: AsyncEngine = create_async_engine( +# "sqlite+aiosqlite:///:memory:", +# connect_args={"check_same_thread": False}, +# echo=False, +# ) +# async with engine.begin() as conn: +# await conn.run_sync(Base.metadata.create_all) +# yield engine +# await engine.dispose() +# +# @pytest.fixture(scope='function') +# async def test_sessionmaker(test_engine): +# factory = async_sessionmaker( +# bind=test_engine, +# class_=AsyncSession, +# expire_on_commit=False, +# autoflush=False, +# future=True, +# ) +# print("Type of test_engine:", +# type(test_engine)) # ← Должно быть: +# print("test_engine:", test_engine) +# return factory + +@pytest.fixture(scope="session") +def event_loop(): + """Создаем event loop для тестов""" + import asyncio + loop = asyncio.new_event_loop() + yield loop + loop.close() + @pytest.fixture(scope="session") def test_engine(): - engine = create_engine("sqlite:///:memory:", connect_args={"check_same_thread": False}) - Base.metadata.create_all(engine) + """Создает асинхронный engine для тестов""" + engine = create_async_engine( + "sqlite+aiosqlite:///:memory:", + connect_args={"check_same_thread": False}, + echo=False, + ) yield engine - engine.dispose() + engine.sync_engine.dispose() + +# @pytest.fixture(scope="session", autouse=True) +# async def setup_database(test_engine): +# """Создание и удаление таблиц""" +# async with test_engine.begin() as conn: +# await conn.run_sync(Base.metadata.create_all) +# yield +# async with test_engine.begin() as conn: +# await conn.run_sync(Base.metadata.drop_all) @pytest.fixture(scope="session") -def test_sessionmaker(test_engine): - sessionfactory = sessionmaker(bind=test_engine) - logger.debug(f'session type: {type(sessionfactory)}') - return sessionfactory \ No newline at end of file +def test_session_factory(test_engine): + """Создает async_sessionmaker который ожидает UnitOfWork""" + + async def setup(): + async with test_engine.begin() as conn: + await conn.run_sync(Base.metadata.create_all) + + # Запускаем setup + import asyncio + asyncio.run(setup()) + + return async_sessionmaker( + test_engine, + class_=AsyncSession, + expire_on_commit=False, + autoflush=False + ) \ No newline at end of file diff --git a/tests/test_db_api.py b/tests/test_db_api.py index 1526cec..8b39fc0 100644 --- a/tests/test_db_api.py +++ b/tests/test_db_api.py @@ -1,13 +1,16 @@ +import pytest + from audiostats.db.api import DBApi from audiostats.handlers import TrackDTO -from tests import test_sessionmaker, test_engine +from tests import test_session_factory, test_engine#, setup_database -def test_upsert_albums(test_sessionmaker, processed_album_dtos): - api = DBApi(test_sessionmaker) +@pytest.mark.asyncio +async def test_upsert_albums(test_session_factory, processed_album_dtos): + api = DBApi(test_session_factory) - api.upsert_albums(processed_album_dtos) + await api.upsert_albums(processed_album_dtos) - albums = api.get_all_albums() + albums = await api.get_all_albums() assert albums.sort(key=lambda x: x.title) == processed_album_dtos.sort(key=lambda x: x.title), 'Insert some albums to db' @@ -16,9 +19,9 @@ def test_upsert_albums(test_sessionmaker, processed_album_dtos): processed_album_dtos[1].tracks.append(TrackDTO(title='New_Track_1', number=6, path='music/new_track_1.flac', offset=None, duration=None)) processed_album_dtos[1].year = None - api.upsert_albums(processed_album_dtos) + await api.upsert_albums(processed_album_dtos) - albums=api.get_all_albums() + albums = await api.get_all_albums() assert albums.sort(key=lambda x: x.title) == processed_album_dtos.sort(key=lambda x: x.title), 'Update some albums in db'