mongodb Questions

nodejs mongodb aggregation not working properly

April 25, 2022
Pratik Ranpariya
3 Answers

I have this type of MongoDB collection { "uploaded_video": [ { "_id": "622a03e66d59f72b72358069", "user_id": "Ec3FNhk45Lh1xk92cO9eoXDiWEk2", "uploaded_video": { "_id": "622a0616242e5b2e65e8b3b4", "video_description": "test", "created_At": "2022-03-10T14:05:29.000Z", "recordedVideo": false, "thumbnailCreated": true }, "activityType": "uploaded_video" } ], "comment_video": [ { "_id": "622a03e66d59f72b72358069", "user_id": "Ec3FNhk45Lh1xk92cO9eoXDiWEk2", "comment_video":…

VIEW QUESTION

Mongodb – Mongoose Model.find by id donsent return desired data

April 24, 2022
Juan
2 Answers

MongoDB with Mongoose API inst returning the data I need the next line is the copy-paste of the property of the data I'm trying to access and returns fine with a find all "_id": "62657d142ac1ad1cab8ca7f7" queries tried as first and…

VIEW QUESTION

Filter nested array in mongoDB with mongoose

April 24, 2022
VinayGowda
3 Answers

I need to filter a multi-level nested array in MongoDB. The schema is as follows, { "_id": "1234", "array1": [ { "id": "a11", "array2": [ { "id": "a21", "array3": [ { "id": "a31", "status": "done" }, { "id": "a32", "status":…

VIEW QUESTION

Mongodb – UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'unlink' of undefined at Grid.remove

April 24, 2022
Rio
2 Answers

I'm trying to delete a file by its id using gridfs but I get this error when calling the delete API. Controller : let gfs; connect.once("open", () => { gfs = Grid(connect.db, mongoose.mongo); gfs.collection("uploads"); }); exports.deleteFile = (req, res) =>…

VIEW QUESTION

MongoDB lookup in multi label nested array

April 24, 2022
Pallab
2 Answers

I am very new in MongoDB. I am trying to make lookup in multi label nested array. My data is looks like bellow. [ { "_id": "621eedae92979fd8f0e9451d", "name": "Pallab Koley", "shifts": { "_id": "62636b9fcbda6d2b17f5cae0", …

VIEW QUESTION

MongoDB aggregate query to filter documents created 7 days ago

April 24, 2022
user16463210
2 Answers

I want to filter the dataset to extract documents which were created 7 days ago OR a Month ago OR Documents created at any date. filter documents based on createdAt field in document. Dataset:- [ { "_id": ObjectId("6257047cffd61ab62864c1ae"), "type": "A",…

VIEW QUESTION

Mongodb – Error: Request failed with status code 500 but it works after I refresh the page

April 24, 2022
Moe I.
2 Answers

When I run my Next.Js/MongoDB Project for the first time it always greets me with a "Error: Request failed with status code 500", but after I refresh the page it works totally fine.. Is this going to be a problem…

VIEW QUESTION

Mongodb – Unable to update a document using save()

April 24, 2022
creativated
2 Answers

I am working on a NodeJS project. I am using express and mongoose. I am trying to update a document in MongoDB but updates are not showing up. Also, there is no error as the page is getting redirected as…

VIEW QUESTION

Mongodb – How do I save data from a model.find({}) function?

April 24, 2022
Erratic
2 Answers

I am trying to work out an average value for a collection in my database using Mongoose and Express. I want to use this value in the render for the "calculator" page, hence it being inside a post for the…

VIEW QUESTION

How to express if-then-else MongoDB aggregation?

April 24, 2022
diziaq
2 Answers

Say we have a collection with this document structure { "full": <string>, "first": <string>, "last": <string> } Looking for an expression in $project with the following logic if ("$full" is null or absent) concatenate ("$first", "_" , "$last") else "$full"…

VIEW QUESTION