wren
535d97a70c
17-table PostgreSQL schema with full Chinese column comments, FastAPI project structure (admin/common/modules), DSL rule files, and schema migration scripts.
22 lines
691 B
Python
22 lines
691 B
Python
"""SQLAlchemy 异步引擎和 session 工厂。"""
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from __future__ import annotations
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from contextlib import asynccontextmanager
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from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
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from fastapi_admin.config import ASYNCPG_DATABASE_URL
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_engine = create_async_engine(ASYNCPG_DATABASE_URL, echo=False, pool_size=20, max_overflow=10)
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_AsyncSessionFactory = async_sessionmaker(_engine, class_=AsyncSession, expire_on_commit=False)
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@asynccontextmanager
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async def GetAsyncSession():
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"""获取异步数据库 session（上下文管理器）。"""
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async with _AsyncSessionFactory() as session:
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yield session
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await session.commit()
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