default
d54e53e0b7
FastAPI + SQLAlchemy + asyncio TCP 服务器，支持设备管理、实时定位、 告警、考勤打卡、蓝牙记录、指令下发、TTS语音播报等功能。
50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
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from sqlalchemy.orm import DeclarativeBase
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from app.config import settings
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engine = create_async_engine(
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settings.DATABASE_URL,
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echo=settings.DEBUG,
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connect_args={"check_same_thread": False},
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)
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async_session = async_sessionmaker(
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bind=engine,
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class_=AsyncSession,
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expire_on_commit=False,
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)
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class Base(DeclarativeBase):
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pass
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async def get_db() -> AsyncSession:
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"""Dependency injection for async database sessions."""
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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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finally:
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await session.close()
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async def init_db() -> None:
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"""Create all database tables."""
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async with engine.begin() as conn:
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from app.models import ( # noqa: F401
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AlarmRecord,
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AttendanceRecord,
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BluetoothRecord,
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CommandLog,
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Device,
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HeartbeatRecord,
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LocationRecord,
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)
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await conn.run_sync(Base.metadata.create_all)
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