Here i am trying to update the 'rating' field of my document by taking average of previously existing value of the rating field and newly sent rating value. this is my rating field specification in the model rating: { type:…
everyone. I'm still new to NodeJs and Mongodb and i would like some help when it comes to adding and retrieving an image depending on a user in my database. I created this mongoose schema and I have as a…
Does it make any sense at all, since the each value of the prefix will have only one value of any suffix, there is no further sorting that can be done after the prefix?
I tried to make function for my project in the service. This service need to check is user exists in my database, but my function(this function is checking) inside the class return undefined. This is my code: const express =…
I am developing a flutter app for Android. For that I am using a realm database and I am using the realm dependency for flutter https://realm.io/realm-flutter/ to read data from it. This realm database is generated by some android library…
I am trying to get a number of documents depending on what query you type in. For example I have a bunch of documents: [ {name: 'jon', city: 'la', country: 'us'}, {name: 'foo', city: 'ca', country: 'us'}, {name: 'alf', city:…
I am trying to find a certain collection which I see existing in my mongoDB database however trying to access it through my express server used to work but it does not work anymore. The connection to the database is…
I have used the $group pipeline and inside it, I have used $addToSet which has created an array of objects which contains two values - {subGenre (string), flag (bool)}. In the next pipeline of $project, I need to run a…
I need help with a bit more complex version of sorting than usual. So I have times: [Date] field in scheme. Let's say my DB has 2 items with these fields: a) time: [ "2022-12-28T18:00:00.000+00:00", "2023-01-04T18:00:00.000+00:00" ]. b) time: […
function getDigitalMigrationJoin(req, res, next) { DigitalMigrationForm.aggregate([ // Join with user_info table { $lookup: { from: DigitalMigrationFormList.collection.name, // other table name localField: "_id", // name of users table field foreignField: "digitalFormId", // name of userinfo table field as: "forms" // alias…