mongodb:flask-pymongo

1 安装

pip install Flask-PyMongo

chapip list | grep pymongo

 

2 集成进入flask框架

app中配置：

'MONGO_URI': 'mongodb://localhost:27017/sydc',
'MONGO_USERNAME': 'root',
'MONGO_PASSWORD': 'root',
'MONGO_CONNECT': False,

'MONGO2_URI': 'mongodb://localhost:27017/hello',
'MONGO2_USERNAME': 'root',
'MONGO2_PASSWORD': 'root',
'MONGO2_CONNECT': False,

 

应用的__init__.py 文件中：此处mongodb忽略

import pymysql
pymysql.install_as_MySQLdb()

 

models.py文件中：

from flask_pymongo import PyMongo
db = PyMongo()
db02 = PyMongo()

 

初始化flask应用

db.init_app(app)
db02.init_app(app,config_prefix='MONGO2')

 

3 基本操作

 

创建索引：

index = mongo.db.user_imgs.create_index([('id', pymongo.ASCENDING)], unique=True)

index = mongo.db.user_imgs.create_index([('wechat_info.token_info.unionid', pymongo.ASCENDING)], unique=True)

 

增：

import uuid

user_id = str(uuid.uuid4()) 
mongoldb  存储的时候要存字符串,默认存二进制，不然再查找没法查

user = {}

user['user_id'] = user_id

user['user_type'] = CONSUMER

unionid_obj = mongo.db.users.insert_one(user)

 

删：

del_obj = mongo.db.users.delete_one({'id': '123'})

 

改：

mongo.db.phone_code.update({'phone_num':phone_num}, {'$set': {'code': code}})

 

 

查：

unionid_obj = mongo.db.users.find_one({'wechat_info.token_info.unionid': unionid})