Codex
22 lines
641 B
Python
22 lines
641 B
Python
from collections.abc import Generator
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from sqlalchemy import create_engine
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from sqlalchemy.orm import Session, sessionmaker
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from app.core.config import get_settings
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settings = get_settings()
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# pool_pre_ping避免调度器长时间空闲后拿到失效的MySQL连接。
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engine = create_engine(settings.database_url, pool_pre_ping=True, future=True)
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SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, future=True)
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def get_db() -> Generator[Session, None, None]:
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# FastAPI依赖负责在请求结束后关闭数据库会话。
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db = SessionLocal()
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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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