27 lines
606 B
Python
27 lines
606 B
Python
from sqlalchemy import create_engine
|
|
from sqlalchemy.ext.declarative import declarative_base
|
|
from sqlalchemy.orm import sessionmaker
|
|
from .config import settings
|
|
|
|
# 创建数据库引擎
|
|
engine = create_engine(
|
|
settings.DATABASE_URL,
|
|
pool_pre_ping=True,
|
|
pool_recycle=3600,
|
|
echo=True # 开发环境打印 SQL
|
|
)
|
|
|
|
# 创建 Session 工厂
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
|
|
# 创建基类
|
|
Base = declarative_base()
|
|
|
|
# 依赖注入：获取数据库会话
|
|
def get_db():
|
|
db = SessionLocal()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|