31 lines
740 B
Python
31 lines
740 B
Python
from sqlalchemy import create_engine
|
|
from sqlalchemy.ext.declarative import declarative_base
|
|
from sqlalchemy.orm import sessionmaker
|
|
from mooc.core.config import settings
|
|
from typing import Generator
|
|
# 创建数据库引擎
|
|
engine = create_engine(
|
|
settings.SQLALCHEMY_DATABASE_URI,
|
|
pool_pre_ping=True,
|
|
echo=settings.SQLALCHEMY_ECHO
|
|
)
|
|
|
|
# 创建会话工厂
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
|
|
# 创建基类
|
|
Base = declarative_base()
|
|
|
|
def init_db():
|
|
"""初始化数据库"""
|
|
Base.metadata.create_all(bind=engine)
|
|
|
|
def get_db() -> Generator:
|
|
"""
|
|
获取数据库会话的依赖项
|
|
"""
|
|
try:
|
|
db = SessionLocal()
|
|
yield db
|
|
finally:
|
|
db.close() |