MongoDB is a scalable, high-performance, open source, document-oriented database. It supports a large number of languages and application development platforms.
-2
votes
0answers
25 views
Asynchronous JavaScript code [closed]
good morning, I have the following code:
for (var i = 0; i < 8; i++) {
async.each([5,6,7,8,9,19,11,12],main, function(err){
console.log("end");
});
};
...
12
votes
2answers
102 views
Builder pattern for users in document database
I'm attempting to make a builder pattern that makes sense and is practical for storing user data in a flexible way in a document database. The DB I chose is MongoDB, and I'm using its Java API ...
2
votes
0answers
26 views
Trade off in database efficiency versus a nested for loop on client
I built an app where a user has a recipe box with recipes in it - for the db, there is a user and recipe model, user has "recipeBox" property. The recipebox is an array of objects like so:
User ...
0
votes
0answers
232 views
A plugin that integrates Angular Smart Tables with Mongoose DB for server side pagination
I'm using Angular Smart Tables with data that might become a huge set of documents and rows. So rather than client side processing of the data for pagination, I borrowing code from two Mongoose.js ...
1
vote
1answer
32 views
6
votes
3answers
39 views
Pulling Docker Machine IP
I am working with MongoDB through Docker, and I have a terrible bash command to pull the Docker Machine IP so I can sanely connect locally.
...
7
votes
1answer
48 views
Retrieving StackExchange sites and tags
I have setup agenda tasks to periodically retrieve and possibly insert new SE sites and tags in my MongoDB database.
Some things that bother me in particular:
Lots of code duplication
No string ...
2
votes
0answers
52 views
Loading and rendering images from MongoDB
I'm playing with Node.js/Express.js/MongoDB and I want to write module to include all MongoDB related functions. My goal is to build simple app to load small jpeg images from MongoDB by _id and render ...
0
votes
1answer
32 views
Flattening a 2D array to use map/reduce
I have been trying to get better at functional programming, which includes understanding map/reduce. I wrote a function intended to fill an autocomplete with values. The challenge I was encountering ...
4
votes
2answers
211 views
Get all followers and friends of a Twitter user
I'm trying to find my bug or any potential bottleneck that cause my program to be really slow. The script is to get all the followers and friends and save that in MongoDB.
...
1
vote
0answers
26 views
Pulling data quickly from mongodb with node.js
I am currently struggling with a request I am making to my server that is taking more than 4 seconds!
I am using socket.io, express and mongoDB in the back end.
I cut out a lot of the cruft to ...
1
vote
0answers
103 views
Game server in Java querying MongoDB for JSON
I was hoping someone would have a look at how I retrieve the questions from the db, parse the JSON and process the results - possibly advise how I could improve efficiency by streamlining my code. I ...
0
votes
1answer
97 views
Multi-player game server accessing and querying MongoDB
I have a remote hosted server that's running Java VM with custom server code for a multiplayer real-time quiz game. The server deals with matchmaking, rooms, lobbies etc. I'm also using a MongoDB on ...
0
votes
0answers
171 views
MongoDB repository, dynamic objects, Razor Templates
I am writing a repository for MongoDB and are looking for some review at its current state. I am looking for ways to improve it without adding complexity.
Should I be using a Singelton pattern for ...
2
votes
0answers
25 views
Modify records at one time
Do you think this works well? I.e, do I need to close the database connection at the end? The goal is to be able to upsert and delete many records in one shoot.
Here is is an example HTTP POST ...
7
votes
2answers
94 views
Recursive download articles and dump to MongoDB
This is simple code that recursively downloads articles from the public WordPress API:
...
8
votes
1answer
127 views
One-to-many relationship with Python objects
I have built Python objects to simulate a one-to-many relationship and then store the object in a MongoDB instance. I am using lots of composition to achieve what I want. The code works perfectly fine ...
3
votes
1answer
100 views
Realtime chat service
I am new to Node.js and Socket.io. I implemented a realtime chat service that has a chatroom feature. When the actual product is launched, there will be at least 200 concurrent users with 50 groups of ...
0
votes
1answer
51 views
Constructing MongoDB document from a dict with character code-to-integer translation
I have an class definition:
...
4
votes
1answer
66 views
Tabulating a report
I have a method for generating a report in Python. I want to organize the section about the date into a separate method so I can repeat the report for different dates.
What's the best way to ...
1
vote
3answers
61 views
Top-10 lists of occupations, ranked by various attributes
In the code below, all pairs of functions are very similar:
set function
rankListId is different
rankListName is ...
2
votes
1answer
339 views
Node.js Paging with Mongodb
I want to create variable paging on Node.js with MongoDB. I use MongoJS on client side create a request:
...
0
votes
0answers
51 views
1
vote
0answers
18 views
Nesting models within models
I am saving data into a MongoDB. The data will be saved into 3 Mongoose models that are hierarchical. A User model contains an ...
2
votes
2answers
99 views
SQL Server to MongoDB Template
Looking for feedback on a set of templates I've just created. I'm planning on converting them to Yeoman but want to make sure they're ready for prime time before doing so. They are currently in ...
3
votes
1answer
61 views
Probability ordering by seller's tariff
I have an instance method which calculates the position of an element, depending on the tariff of its seller.
If the seller is of a level3 tariff, it gets to top ...
2
votes
0answers
31 views
Iterating a list to make API calls
I'm new to JavaScript and was hoping there was a cleaner way to write this. It's a block of code that looks at a group of documents in a collection (called Messages), and makes a call to the GitHub ...
0
votes
0answers
24 views
Gathering emails, phones, URIs, and tag related to a room
I've made a strange method with multiples conditionals, creating a lot of Lists and I was wondering if I could write it in a better and more legible way.
...
1
vote
0answers
206 views
Node.js log parser for mongoDB
I have developed a log parser, the goal is to take whatever log type I can, and convert them in a mongoDB collection.
I think I've done a pretty good job at reading whatever type of log are trhown at ...
0
votes
1answer
91 views
Which is a better data structure using mongodb?
I'm still confused which structure is better structure using MongoDB.
Place child in parent:
...
0
votes
0answers
117 views
Secure and optimize Mongoose model component
Please help in deciding if this method for a Mongoose model component for user authentication can be made more secure and optimized, for efficiency and platform independence.
...
2
votes
0answers
303 views
Log my external IP address using NodeJS
I've been learning NodeJS recently, and have a small program to get the external IP address on my home network from fugal.net, compare it to the previous IP address, and if there is a change update ...
2
votes
0answers
125 views
NoSQL-based sequence generator
For my web application I have to generate a sequence of following format:
<year><sometext><month><sequence>
For example:
...
4
votes
1answer
111 views
Querying MongoDB for information on a collection of books
I have this huge chunk of code. Is there any better to write this code, or am I too paranoid that I check every MongoDB query for error?
The logic is here:
Bookcollection = collection of books
Book ...
4
votes
2answers
1k views
Node.js script may have memory leak
I use this node.js script to migrate MongoDB collection to a schema to another. It does work if the collection is <20k documents, but slows down to a crawl and sometime throw a
FATAL ERROR: JS ...
2
votes
0answers
44 views
Parsing CSVs for bulk database insertions
I'm writing this as (eventually) part of a larger program. This will serve as the bulk data insertion from .csv files we parse.
I'm primarily looking for parts that are
breaking Go's formatting, ...
3
votes
1answer
963 views
Node js single mongodb connection
I want my entire node application to use one single mongodb connection, at least that's what I think is better. I wrote this little script and want some feedback on it. Especially if what I'm doing ...
1
vote
0answers
34 views
Structuring my application documents
I'm just starting out on an application and I've heard some good things about MongoDB so I thought I'd give it a crack in this new project to see how well it works.
Please bear in mind that prior to ...
14
votes
1answer
168 views
Making an efficient and healthy db call for a real-time browser game
I'm doing a calculation for a real-time browser game, where users can invest some of their balances to the site. I need to update their invest's based on ...
2
votes
1answer
41 views
2
votes
1answer
103 views
NoSQL schema for weather data
I am using NodeJS and MongoDB for a weather app that takes the weather info from a logger, saves it to a database, and relays the data to the browser in real-time. It is hosted here with code here ...
5
votes
1answer
263 views
E-commerce product price tracker
I building a very simple price tracker web app. I am using MongoDB with pymongo. The user will enter the URL of the product he wishes to track and the desired amount, when the price goes below this ...
2
votes
1answer
131 views
Views Counter made in Python, Gevent and MongoDB
I've created a Views Counter in Python, Gevent and MongoDB (Flask is also included in the full stack as you can see from the context issue in the code).
My gut still tells me that it can be still ...
4
votes
2answers
910 views
Modularize this node.js express server code for routes and session handlers?
I have express node.js server code using Passport. It receives a user to authenticate it and ...
10
votes
2answers
776 views
NodeJS broker between MongoDB and RabbitMQ
I wrote a small program that aims to take some data from the MongoDB database and put them in the RabbitMQ queue.
I tried to use only promise style but I am a beginner in JavaScript. Could you please ...
1
vote
2answers
771 views
Number of Google search results over a period of time, saved to database
I am writing a Python script that scrapes data from Google search results and stores it in a database. I couldn't find any Google API for this, so I am just sending a HTTP GET request on Google's main ...
0
votes
1answer
77 views
Class for connecting to mongodb databases and return collection object
This code connects to a mongodb database and returns collection objects. I am concerned about the exception handling, variable names and comments.
...
4
votes
1answer
1k views
Optimizing async joins for mongodb (mongoose) using async.js
I'm building a media viewer web app for a kiosk in node that uses data in mongo. To render the viewer, it gathers together all the Asset objects (representing video files), each of which belong to a ...
2
votes
1answer
221 views
Thoughts on this conversion of code from Step.js to Q promise library?
I have some code that I'd written using this pattern with Step.js. In this case, talking to MongoDB in Node:
...
1
vote
1answer
205 views
Transform a MongoDb parent reference tree into a deep nested tree
Given a mongodb collection that stores trees as nodes with parent references this methods returns a deep nested tree where every child nodes are stored in a property childs[Seq]
...
