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Showing posts with the label Mongodb

Cannot Find Mongodb Module When Deploying To Heroku

When I deploy my node.js server to Heroku it throws the following error: 2018-12-27T10:10:28.3701… Read more Cannot Find Mongodb Module When Deploying To Heroku

Is It Possible To Use Query Projection On The Same Collection That Has A $elemmatch Projection?

I understand that you can limit the items in a subcollection array using $elemMatch as a projection… Read more Is It Possible To Use Query Projection On The Same Collection That Has A $elemmatch Projection?

Query On Date For Posts Created The Last 24h

I have this schema with a date for the field 'created_at': var post = new mongoose.Schema({… Read more Query On Date For Posts Created The Last 24h

How Do You Do A "join" On An Array In Mongoose (mongodb) With Node.js?

How do you do a 'join' (i know it is not the correct term) with an array of messages in mon… Read more How Do You Do A "join" On An Array In Mongoose (mongodb) With Node.js?

Exporting Multiple Objects In Node.js

I'm working on a MEAN stack project, and trying to pass a set of variables from one controller … Read more Exporting Multiple Objects In Node.js

Mongoose Text Search With And Operator

So what I'm trying to do is making a 'AND' search with mongoose to mongoDb, but the res… Read more Mongoose Text Search With And Operator

How To Return Subdocuments From An Object In An Array With Meteor And Mongodb

This is a followup question from my previous question here on stackoverflow.com. Firstly, Thanks to… Read more How To Return Subdocuments From An Object In An Array With Meteor And Mongodb

How To Check If Selected Email & Name Is Alread Exist In Mongodb

I would like to get information if selected user email & name already exist somewhere in MongoD… Read more How To Check If Selected Email & Name Is Alread Exist In Mongodb

Mongoose Model, Array Of Strings, Array Of Objects Structure

I am trying to design my database model and i dont have clue how to fit array of strings and array … Read more Mongoose Model, Array Of Strings, Array Of Objects Structure

Meteor App Ran With Pm2 Fatal Error: Call_and_retry_last Allocation Failed - Javascript Heap Out Of Memory

I am using meteor. I build my app with meteor build. Then I try to run it with pm2 MONGO_URL=mongod… Read more Meteor App Ran With Pm2 Fatal Error: Call_and_retry_last Allocation Failed - Javascript Heap Out Of Memory

Mongoose - Aggregation $match Based On Enum Values

I have an aggregation with mongoose, the objects what i get looks like this: foods: { fruits: {… Read more Mongoose - Aggregation $match Based On Enum Values

Maintaining Order Of Http Requests Within A For Loop In Javascript

I am trying to save an array of objects in MongoDB using node.js express and mongoose (MEAN stack).… Read more Maintaining Order Of Http Requests Within A For Loop In Javascript

Perform $inc In Instance Method, Get Updated Document

I have an instance method in Mongoose where I need to perform Mongo's $inc operator on a field.… Read more Perform $inc In Instance Method, Get Updated Document

How To Rearrange Cards And Lists Like Trello?

I'm trying to create a rearrangement of cards, lists like Trello. I read about how it does here… Read more How To Rearrange Cards And Lists Like Trello?

Express Js Unlimited Query Parameter Function?

I'm trying to set an unlimited query parameter in express js.But I couldn't figure out how … Read more Express Js Unlimited Query Parameter Function?

How To Save 1 Million Records To Mongodb Asyncronously?

I want to save 1 million records to mongodb using javascript like this: for (var i = 0; i Solution … Read more How To Save 1 Million Records To Mongodb Asyncronously?

Techniques For Storing Libraries In Mongodb's System.js

Are there any reliable techniques for storing prototype-based libraries/frameworks in mongoDB's… Read more Techniques For Storing Libraries In Mongodb's System.js

How To Lookup A Field With An Array In Nested Subdocument Mongodb?

I am trying to retrieve some lookup data for an embedded array in a document. Here is a sample of t… Read more How To Lookup A Field With An Array In Nested Subdocument Mongodb?

Objects Are Not Valid As A React Child Data From Mongodb

I'm working on a project that uses Flask as a backend and sends data from MongoDB database and … Read more Objects Are Not Valid As A React Child Data From Mongodb

Got Duplicated Data When Subscribe Multiple Times

I am using MongoDB aggregation in meteor. I got duplicated data when subscribe multiple times. (The… Read more Got Duplicated Data When Subscribe Multiple Times