代码

# -*- coding: utf-8 -*-
# Author    : markadc

import pymongo


# status字段类型变为int，'1' ==> 1
def filed_to_int():
    coll = pymongo.MongoClient()['coursehero']['tasks']
    coll.update_many(
        {},
        [
            {'$set':
                 {'status':
                      {'$convert':
                           {'input': '$status', 'to': 'int'}
                       }
                  }
             }
        ]
    )