I have a collection called "datas" and the other collection is named as "aidretentionandgraduations" in a database called "challenge". Both collections have similar values stored in different field called unitId and Unitid, their values should be used to merge those…
How to say the custom message that the Email is unique from mongoose Schema. I do not want to check that this email exists or not from my back-end because I already said in mongoose schema that email: { type:…
I have all combination of compound indexes for this collection. The aggregattion query i used is: db.products.aggregate( [ { $facet: { "categorizedByColor": [ { $match: { size: { $in : [50,60,70] }, brand: { $in : ["Raymond","Allen Solly","Van Heusen"] }…
I have an array of reviews, I want to retrieve only a review from an array of objects inside a schema. Here is my schema: const sellerSchema = new mongoose.Schema({ user: { type: mongoose.Schema.Types.ObjectId, ref: "User", unique: true, }, reviews:…
I have an "Image" collection below ( Note: labels field is an array, because 1 Image maybe have many labels) { "_id" : ObjectId("624d182b6a4e7f001ed5cd9f"), "is_deleted" : false, "labels" : [ { "_id" : ObjectId("627a0fbc12458800209dd69c"), "labelId" : ObjectId("624d14d76a4e7f001ed5c6ca"), "xmin" : 0.440625,…
I made a get request but I have an error about _id param it can not be read app.get('/users/:id', (res, req) => { const _id = req.params.id if(_id.length != 24) { res.status(404).send(`id length must be do not less than 24…
I've created an update function using Mongoose. However whenever I update the data using findOneAndUpdate. It updates only the fields entered and making it so that the others are now null or empty. I would like it so that when…
In my application I have activity logs of users stored in my DB (mongoDB), Since a lot of logs are collected within 3 months I want to Delete all the activity log records older than 3 months from current date.…
i'm trying to loop over an array of objects, saving them to MongoDB and then add the returned ObjectIds to a parent Schema which then is also saved. I'm at a loss here. Everything gets saved correctly but the Recipe…
I'm creating a project using the mern stack. I'm trying to update a project from my frontend to my backend. When I update it it will return success but when I check the database nothing is updated? I'm trying to…