SQLAlchemy和flask-sqlalchemy中通过数据库映射出model.py文件

SQLAlchemy中使用sqlacodegen

flask-sqlalchemy中使用flask-sqlacodegen --flask

flask-sqlalchemy它致力于简化在 Flask 中 SQLAlchemy 的使用，提供了有用的默认值和额外的助手来更简单地完成常见任务。

## 自己的代码

#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
Generate models from database
Created date: 2018/12/05
Author: Bryan Yang
"""

import os


def gen_models():
    db_url = "mysql://root:root@localhost:3306/Plants?charset=utf8"
    plants_path = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
    model_path = os.path.join(plants_path, 'plants_app/models/models.py')
    cmd = 'flask-sqlacodegen --flask {}'.format(db_url)
    try:
        output = os.popen(cmd)
        content = str(output.read())
        with open(model_path, 'w+') as f:
            f.write(content)
        print('Generated database models successfully')
    except Exception, e:
        print e


if __name__ == '__main__':
    gen_models()