f53a610a19
Full-stack energy management system for Tianpu Daxing campus. - Frontend: React 19 + TypeScript + Ant Design + ECharts - Backend: FastAPI + SQLAlchemy + PostgreSQL/TimescaleDB - Features: PV monitoring, heat pump management, carbon tracking, alarms, reports Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
30 lines
843 B
Python
30 lines
843 B
Python
from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
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from sqlalchemy.orm import DeclarativeBase
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from app.core.config import get_settings
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settings = get_settings()
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db_url = settings.DATABASE_URL_LOCAL if settings.DATABASE_URL_LOCAL else settings.DATABASE_URL
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engine_kwargs = {"echo": settings.DEBUG}
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if "sqlite" not in db_url:
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engine_kwargs["pool_size"] = 20
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engine_kwargs["max_overflow"] = 10
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engine = create_async_engine(db_url, **engine_kwargs)
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async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
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class Base(DeclarativeBase):
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pass
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async def get_db():
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async with async_session() 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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