nmongo 0.4.1

连接到数据库

>>> import nmongo
>>> db = nmongo.connect('servername', 'somewhatdatabase')
>>>

ssl连接

>>> import nmongo
>>> db = nmongo.connect('servername', 'somewhatdatabase', use_ssl=True)
>>>

或

>>> import nmongo
>>> db = nmongo.connect('servername', 'somewhatdatabase', use_ssl=True, ssl_ca_certs='/path/to/something-cert.crt)
>>>

用户认证

>>> import nmongo
>>> db = nmongo.connect('servername', 'somewhatdatabase', user='user', password='password')
>>>

创建

>>> db.fruits.insert({'name': 'apple', 'price': 200})
1
>>> db.fruits.insert([{'name': 'orange', 'price': 100}, {'name': 'banana', 'price': 50}])
2
>>> db.fruits.count()
3
>>>

读取

>>> cur = db.fruits.find({'name': 'banana'})
>>> cur.fetchone()
{'price': 50, '_id': ObjectId("5826b2313d28909ce9f6ea63"), 'name': 'banana'}
>>> cur = db.fruits.find()
>>> cur.fetchall()
[{'price': 200, '_id': ObjectId("5826b2273d28909ce9f6ea61"), 'name': 'apple'}, {'price': 100, '_id': ObjectId("5826b2313d28909ce9f6ea62"), 'name': 'orange'}, {'price': 50, '_id': ObjectId("5826b2313d28909ce9f6ea63"), 'name': 'banana'}]
>>>

更新

>>> db.fruits.update({'name': 'banana'}, {'$inc': {'price': 20}})
{'nModified': 1, 'ok': 1, 'n': 1}
>>> cur = db.fruits.find({'name': 'banana'})
>>> cur.fetchone()
{'_id': ObjectId("5823dd6d3d28909ce9f6e99c"), 'name': 'banana', 'price': 70}
>>>

删除

>>> db.fruits.remove({'name': 'banana'})
1
>>> db.fruits.count()
2

计算每个采集记录

>>> for collection in db.getCollections():
...     print(collection.name, collection.count())
...
fruits 3
>>> db.getCollection('fruits').count()
3
>>>

另请参见mongo shell方法（集合和数据库部分）。

• https://docs.mongodb.com/manual/reference/method/#collection
• https://docs.mongodb.com/manual/reference/method/#database

普通

• 网格

微蟒

• SSL
• datetime.datetime
• time.struct_时间