ai_0824/database.py

from sqlalchemy import *
from sqlalchemy.orm import declarative_base, sessionmaker

db_url = "mysql+pymysql://root:123456@127.0.0.1:3306/ai0824?charset=utf8mb4"
engine = create_engine(db_url)

Base = declarative_base()
Session = sessionmaker(bind=engine
                       , autoflush=False
                       , autocommit=False
                       )


def get_db():
    db = Session()
    try:
        yield db
    finally:
        db.close()

@order_api.put('/{id}')
def get_orders(order:OrderRequest,id:int,db=Depends(get_db)):
    try: # 数据更新是有返回值的，返回的是影响的行数
        rows = db.query( Order ).filter( Order.id == id ).update( order.model_dump(exclude_unset=True) )
    except:
        db.rollback()
        raise HTTPException(status_code=500, detail='更新异常，请稍后执行！')
    else:
        db.commit()
    print('更新影响的行数：',rows)
    return {'code':200,'totals':rows,'detail':'更新成功'}
'嘿嘿'
print('aaaaa')