把SQLAlchemy查询对象转换成字典使用

Posted 2021-02-01 三度

注:针对的是查询出来的是单条对象

1.config.py文件

#!/usr/bin/env python
#-*- coding: utf-8 -*-

from sqlalchemy import create_engine,Column,String,Integer
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

HOSTNAME = ‘127.0.0.1‘
PORT = ‘3306‘
DATABASE = ‘1‘
USERNAME = ‘root‘
PASSWORD = ‘root‘


DB_URI = "mysql+mysqlconnector://{username}:{password}@{host}:{port}/{db}?charset=utf8".format(username=USERNAME,password=PASSWORD,host=HOSTNAME,port=PORT,db=DATABASE)

engine = create_engine(DB_URI)

Base = declarative_base(engine)

session = sessionmaker(engine)()

class Views(Base):
    __tablename__ = ‘views‘
    id = Column(Integer, primary_key=True)
    name = Column(String(100))
    ports = Column(String(100))

def to_dict(self):
        model_dict = dict(self.__dict__)
        del model_dict[‘_sa_instance_state‘]
        return model_dict

    Base.to_dict = to_dict

2.mian.py文件
..........

Info = session.query(Views).filter_by(id=1).first()
Info.to_dict() # 把查询得到的结果转换成字典样式,键是数据表中的字段名,值是数据表中对应的值

..........