55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
"""
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Подключение к базе данных
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"""
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from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
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from sqlalchemy.orm import sessionmaker, Session
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from sqlalchemy import create_engine
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from typing import AsyncGenerator, Generator
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from config import DATABASE_URL, DATABASE_URL_SYNC
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# Синхронный движок
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sync_engine = create_engine(DATABASE_URL_SYNC)
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SyncSessionLocal = sessionmaker(bind=sync_engine, class_=Session)
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# Асинхронный движок
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async_engine = create_async_engine(
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DATABASE_URL,
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echo=False
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)
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AsyncSessionLocal = async_sessionmaker(
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bind=async_engine,
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class_=AsyncSession,
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expire_on_commit=False
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)
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def get_db() -> Generator[Session, None, None]:
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"""Получить синхронную сессию БД"""
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db = SyncSessionLocal()
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try:
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yield db
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finally:
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db.close()
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async def get_async_session() -> AsyncGenerator[AsyncSession, None]:
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"""Получить асинхронную сессию БД"""
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async with AsyncSessionLocal() 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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finally:
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await session.close()
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async def init_db():
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"""Инициализация БД (создание таблиц)"""
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from database.models import Base
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async with async_engine.begin() as conn:
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await conn.run_sync(Base.metadata.create_all)
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