34 lines
769 B
Python
34 lines
769 B
Python
from sqlalchemy import create_engine, event
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker, Session
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from app.config import get_settings
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settings = get_settings()
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# 创建引擎
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engine = create_engine(
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settings.DATABASE_URL,
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connect_args={"check_same_thread": False} if settings.DATABASE_URL.startswith("sqlite") else {},
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echo=settings.DEBUG
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)
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# 会话工厂
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# 模型基类
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Base = declarative_base()
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def get_db() -> Session:
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"""获取数据库会话"""
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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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def init_db():
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"""初始化数据库"""
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Base.metadata.create_all(bind=engine)
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