mongodb Questions

Mongodb – Can you help me find why Mongoose returns this undefined error in Object.isPOJO?

October 18, 2022
lytonist
2 Answers

I'll be grateful if you can help me understand an error generated by mongoose. Log Error: TypeError: Cannot read properties of undefined (reading 'name') at Object.isPOJO (C:Users[...]node_modulesmongooselibutils.js:396:38) at Object.toObject (C:[...]node_modulesmongooselibutils.js:354:15) at model.Query.Query.find (C:[...]node_modulesmongooselibquery.js:2341:22) at Function.find (C:[...]node_modulesmongooselibmodel.js:2244:13) at Object.exports.findMatches (C:[...]controllersmatches.js:13:11) at…

VIEW QUESTION

is there a way to pull only the name of the fields in a document in mongodb using mongoose

October 17, 2022
OFMN21
2 Answers

my website takes a dataset and the dataset contains data about a students or employees..etc, so I want to display the column names to the user. Is there a way to pull the fields name? ex: Name, Age, Country String,…

VIEW QUESTION

Mongodb sum of views by day name

October 17, 2022
StormTrooper
3 Answers

I have this simple collection of views: Views: [ { title: "cartoons", views: 1, created_at: 2022-10-03 12:00:00.000Z }, { title: "songs", views: 4, created_at: 2022-10-04 12:00:00.000Z }, { title: "lectures", views: 3, created_at: 2022-10-10 12:00:00.000Z }, { title: "news", views:…

VIEW QUESTION

Which way is a best to fetch data in node js from mongodb?

October 17, 2022
David
2 Answers

everyone I have such a question, I fetch data in node js from MongoDB, also I Have two routes where was fetched "users" and "posts", check the code: // Mongoose schema models const users = require('../models/users') const posts = require('../models/posts')…

VIEW QUESTION

MongoDB select best matched document

October 17, 2022
dilip
2 Answers

I have a collection of documents like this: [{ "_id" : ObjectId("6347e5aa0c009a37b81da700"), "testField1" : "1000", "testField2" : "2000", "testField3" : NumberInt(1) }, { "_id" : ObjectId("6347e5890c009a37b81da701"), "testField2" : 2000, "testField3" : NumberInt(2) }, { "_id" : ObjectId("6347e5960c009a37b81da702"), "testField3" : NumberInt(3)…

VIEW QUESTION

MongoDB query that looks for documents with lowercase values

October 17, 2022
Benji
2 Answers

Is it possible to make a MongoDB query that searches a field for completely lowercase string values? Something like this pseudo query perhaps? { address: { $eq: { $toLower: "$address" } } } ...that would return docs with data like:…

VIEW QUESTION

Mongodb – How to access $and operator from Filter<T> in Typescript, in method where Filter<T> is passed in as a parameter?

October 17, 2022
saddiqs1
2 Answers

I have some code which works, but keeps on throwing up TypeScript errors in my IDE. I have condensed the code down to show what my issue is. Within a Next.JS app, I have a type (TestModel), a method which…

VIEW QUESTION

Get maximum value from MongoDB aggregation query

October 16, 2022
Cooler-cpu
2 Answers

I have a list of posts: [{"name: "POST 1", {"name": "POST 2",}, {"name": "POST 1",} I want to count the number of identical names and output the maximum number. The expected result is: {"id: "POST 1", count:2} Now I wrote…

VIEW QUESTION

Mongodb – How to create or update within object of objects

October 16, 2022
Nugget
2 Answers

I'm trying to access a database with the following difficult schema and want to update the file_name value if it exists, or create a new object with the file_name if it does not. As I have searched, the option {…

VIEW QUESTION

How to handle a million documents in MongoDB using expressJS?

October 15, 2022
Tanzim Ahmed
2 Answers

I have an "annotations" collection in MongoDB, which contains 5 million documents. The collection size is almost 2.5 GB, and its index size is 55 MB. I was trying to store the collection in a variable const Annotation = await…

VIEW QUESTION