36 lines
842 B
Python
36 lines
842 B
Python
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"""
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数据库连接管理
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"""
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from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from app.core.config import settings
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# 创建数据库引擎
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engine = create_engine(
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settings.DATABASE_URL,
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echo=settings.DB_ECHO,
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pool_size=settings.DB_POOL_SIZE,
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max_overflow=settings.DB_MAX_OVERFLOW,
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pool_timeout=settings.DB_POOL_TIMEOUT,
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pool_recycle=settings.DB_POOL_RECYCLE,
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pool_pre_ping=True, # 连接前测试连接是否有效
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)
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# 创建会话工厂
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# 创建基础模型类
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Base = declarative_base()
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def get_db():
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"""
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获取数据库会话的依赖注入函数
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"""
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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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