forked from FOSS/AutoShop-Djimbo
48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
# - *- coding: utf- 8 - *-
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from collections.abc import AsyncIterator
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from contextlib import asynccontextmanager
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from pathlib import Path
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from sqlalchemy import event
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from sqlalchemy.ext.asyncio import AsyncAttrs, AsyncSession, async_sessionmaker, create_async_engine
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from sqlalchemy.orm import DeclarativeBase
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from tgbot.data.config import PATH_DATABASE
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database_path = Path(PATH_DATABASE)
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database_url = f"sqlite+aiosqlite:///{database_path.as_posix()}"
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engine = create_async_engine(database_url, echo=False)
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session_factory = async_sessionmaker(engine, expire_on_commit=False)
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# Общая база для всех SQLAlchemy-моделей
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class Base(AsyncAttrs, DeclarativeBase):
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pass
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# Включение SQLite-настроек на каждом соединении
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@event.listens_for(engine.sync_engine, "connect")
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def _configure_sqlite(dbapi_connection, connection_record) -> None:
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cursor = dbapi_connection.cursor()
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cursor.execute("PRAGMA foreign_keys=ON")
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cursor.execute("PRAGMA busy_timeout=5000")
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cursor.close()
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# Открытие сессии с автокоммитом или откатом
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@asynccontextmanager
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async def session_scope() -> AsyncIterator[AsyncSession]:
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async with session_factory() as session:
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try:
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yield session
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await session.commit()
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except Exception:
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await session.rollback()
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raise
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# Закрытие пула соединений БД
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async def close_database() -> None:
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await engine.dispose()
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