pymongo

问题 How do I select records from a date field which has a time (HH:MM:SS.Milisecond) value greater than zero from a MongoDB collection and update it with a time (HH:MM:SS) value as zero by keeping the date value the same as the existing value in a Python script? The current data would look like as below - 1) "createdDate" : ISODate("2015-10-10T00:00:00Z") 2) "createdDate" : ISODate("2015-10-11T00:00:00Z") 3) "createdDate" : ISODate("2015-10-12T00:00:00Z") 4) "createdDate" : ISODate("2015-10-13T01

问题 How do I select records from a date field which has a time (HH:MM:SS.Milisecond) value greater than zero from a MongoDB collection and update it with a time (HH:MM:SS) value as zero by keeping the date value the same as the existing value in a Python script? The current data would look like as below - 1) "createdDate" : ISODate("2015-10-10T00:00:00Z") 2) "createdDate" : ISODate("2015-10-11T00:00:00Z") 3) "createdDate" : ISODate("2015-10-12T00:00:00Z") 4) "createdDate" : ISODate("2015-10-13T01

问题 I am currently runnning Ubuntu 12.04 with mongodb 2.2 and pymongo version 2.3. I am attempting to gather some information using Twitters API and I am getting an error when attempting to import mymongo. Here is what I have: import pycurl, json import pymongo STREAM_URL = "https://stream.twitter.com/1/statuses/filter.json" WORDS = "track=#obama" USER = "myuser" PASS = "mypass" ImportError: No module named pymongo Any ideas? 回答1: I had the same problem. Pymongo conflicts with the bson package.

问题 I'm using pymongo and want to do a search for items starting with a certain sequence of characters. I might implement that like this: items = collection.find({ 'key': '/^text/' }) This should work, but what if text is a variable? I could do something like: items = collection.find({ 'key': '/^' + variable + '/' }) But now if the text in variable contains any characters with special regex meaning (such as $ ), the query no longer behaves as expected. Is there a way to do some sort of parameter

问题 assume that i have a BlogPost model with zero-to-many embedded Comment documents. can i query for and have MongoDB return only Comment objects matching my query spec? eg, db.blog_posts.find({"comment.submitter": "some_name"}) returns only a list of comments. edit: an example: import pymongo connection = pymongo.Connection() db = connection['dvds'] db['dvds'].insert({'title': "The Hitchhikers Guide to the Galaxy", 'episodes': [{'title': "Episode 1", 'desc': "..."}, {'title': "Episode 2", 'desc

问题 I am using MongoDB as the back-end database for Python web application (PyMongo + Bottle). Users can upload files and optionally 'tag' these files during upload. The tags are stored as a list within the document, per below: { "_id" : ObjectId("561c199e038e42b10956e3fc"), "tags" : [ "tag1", "tag2", "tag3" ], "ref" : "4780" } I am trying to allow users to append new tags to any document. I came up with something like this: def update_tags(ref, new_tag) # fetch desired document by ref key as

问题 I am using pymongo to query for all items in a region (actually it is to query for all venues in a region on a map). I used db.command(SON()) before to search in a spherical region, which can return me a dictionary and in the dictionary there is a key called results which contains the venues. Now I need to search in a square area and I am suggested to use db.places.find , however, this returns me a pymongo.cursor.Cursor class and I have no idea how to extract the venue results from it. Does

问题 I'm trying to use the sort feature when querying my mongoDB, but it is failing. The same query works in the MongoDB console but not here. Code is as follows: import pymongo from pymongo import Connection connection = Connection() db = connection.myDB print db.posts.count() for post in db.posts.find({}, {'entities.user_mentions.screen_name':1}).sort({u'entities.user_mentions.screen_name':1}): print post The error I get is as follows: Traceback (most recent call last): File "find_ow.py", line 7

问题 I need to search an ObjectId with python using pymongo but I always get this error. Any ideas how to search? import pymongo from pymongo import MongoClient from pymongo import ObjectId gate = collection.find({'_id': ObjectId(modem["dis_imei"])}) print gate Traceback (most recent call last): File "C:\Users\gerswin\Documents\Proyectos\Demonio py\test.py", line 2, in <module> import pymongo File "C:\Python27\lib\site-packages\pymongo\__init__.py", line 80, in <module> from pymongo.connection

问题 I am trying to perform a regex query using pymongo against a mongodb server. The document structure is as follows { "files": [ "File 1", "File 2", "File 3", "File 4" ], "rootFolder": "/Location/Of/Files" } I want to get all the files that match the pattern *File. I tried doing this as such db.collectionName.find({'files':'/^File/'}) Yet i get nothing back , am i missing something because according to the mongodb docs this should be possible. If I perform the query in the mongo console it