Tagged Questions

MongoDB is a scalable, high-performance, open source, document-oriented database. It supports a large number of languages and application development platforms. Questions about administrating it can be asked on dba.stackexchange.com

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Aggregate group by matching fields

I have the following results which have been created with aggregation: { "result" : [ { "_id" : 1, "zipcode" : 63109, "students" : { ...
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0answers
5 views

Query mongodb using Predicate and sub-document $type

What I am looking for is how do you translate a query using java spring mongodb based on type of the sub-document into a Predicate. A normal query would look something like: Query query = new ...
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0answers
9 views

How can I do a has many relationship in Mongoose?

ITEMS _id price name shop_id SHOPS _id name I'm building a geolocation app and I need to get stores and the items they have in them. I used NodeJS + Mongoose for quickness and I understand ...
1
vote
1answer
8 views

MongoDB Regex with multiple options

How do I search in mongo with regex that has multiple options? as per mongo documentation I can do, db.collection.find( { field: { $regex: 'acme.*corp', $options: 'i' } } ) How do I do this with ...
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0answers
7 views

OSX Terminal - How To Write This Command Correctly To Import CSV Into MongoDb

I'm trying to import a TSV file into Mongodb. However I'm not very good with Terminal, and the following command keeps failing. Any advice? /mongoimport --db webapp-dev --collection cities --type ...
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2answers
16 views

PB mongodb, mongoose, node.js

I get this error when I try to insert something in mongodb, can you give me a doc for understand and do what I need please ? ...
0
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1answer
11 views

.NET implementation of MongoDB remove command

From the console this is as easy as running the command: db.<collectionName>.remove(); This does not appear to be implemented as part of the .NET driver functionality. How can I produce ...
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0answers
22 views

Simple WHERE clause with MongoDB

I just started using MongoDB and I have a simple query that's throwing an exception: public static List<WorkflowItem> GetBySubId(string subId) { var query = Query<WorkflowItem>.EQ(x ...
0
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1answer
16 views

How to query a dynamic key - mongodb schema design

I have the following document: { _id : 1, key1 : { samekeyA : "value1", samekeyB : "value2" }, key2 : { ...
0
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1answer
23 views

MongoDB query to break ties and remove duplicates

I have documents which have a Version, URL, and DateAdded field (among others but these are the relevant ones). I'd like to find all documents where the Version is "5.5" and the DateAdded is less ...
0
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0answers
12 views

Rails With MongoDB - Error On Bundle Update

I have installed mongodb and rails on a CentOS vps. rails new myapp --skip-active-record In my Gemfile I have: gem 'mongoid', github: 'mongoid/mongoid' gem 'bson_ext', '~> 1.8.6' And then I ...
0
votes
2answers
18 views

Mongodb - will $addToSet create the field?

Will an array update using $addToSet create the field if it doesn't exist? In other words, if field2 in the line below does not exist, will it be created by this command: db.collection.update({id: ...
0
votes
1answer
9 views

WaterlineJS find all not in ($nin)

I'm using the Waterline ORM (MongoDB adapter) with SailsJS and trying to return all documents that don't match the specified query along the lines of this: User.find({ id: { $nin: [array] ...
1
vote
0answers
16 views

ReferenceError: client is not defined Node.js Mongodb

I am creating a client management system and I am using a RESTful approach to create a dash board or sorts. But, unfortunate I am getting an error in terminal when trying to start a node server that ...
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votes
0answers
15 views

Symfony2 fires an error “class 'stdClass' was not found…”

The exception: "The class 'stdClass' was not found in the chain configured namespaces test\UserBundle\Document, test\SignUpBundle\Document" is thrown from CollectionPersister class: ...

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