I have a Mongoose model like this: const centerSchema = mongoose.Schema({ centerName: { type: String, required: true, }, candidates: [ { candidateName: String, voteReceived: { type: Number, default: 0, }, candidateQR: { type: String, default: null, }, }, ], totalVote:…
I have the following MongoDB structure: Division Collection: { "_id": ObjectId("5b28cab902f28e18b863bd36"), "name": "Premier League", ... "teams": [ ObjectId("5b28cab902f28e18b863bd01"), ObjectId("5b28cab902f28e18b863bd02"), ObjectId("5b28cab902f28e18b863bd03"), ... ] ... }, ... Teams Collection: { "_id": ObjectId("5b28cab902f28e18b863bd01"), "name": "Liverpool", ... "players": [ ObjectId('5b23tmb902f28e18b863bd01'), ObjectId('5b23tmb902f28e18b863bd02'), ObjectId('5b23tmb902f28e18b863bd03'), ... ]…
let newdata = await tripModel.find( { tripId: ID }, {salesOrder:1, no: "$deliveryDetails.invoiceNo", _id: 0 } ); let nullInvoices = []; console.log("vvvvvvv", newdata[0].salesOrder); for (let i = 0; i < newdata[0].no.length; i++) { if (newdata[0].no[i] === null) nullInvoices.push({ SO: newdata[0].salesOrder[i], invoice:…
I'm trying to save an entry in a MongoDB time series collection, but I'm unable to store the timeField correctly, mongo is throwing the error. MongoServerError: 'blockTime' must be present and contain a valid BSON UTC datetime value How can…
I have been trying to get the specific value from database of MongoDB in node.js using. I have used find() and findOne() but in both case I am getting some object like thing in console. This is my code: const…
Want to sort data by names, but unfortunately there are many data with leading whitespaces, that is why rest_framework.filters.OrderingFilter doesn't work properly. Mongo, DRF are used in my project. My model: from mongoengine import DynamicDocument, fields class Book(DynamicDocument): name =…
Hello how to change an id of document to diffrent when some ids are equal? I want to change some of employees id_director to object id thats is equal to id_director. I mean for example, when some document have id_director…
I am adding MongoDB into my discord bot, I have it set so when something happens it does await ticketSchema.findOneAndUpdate( { $inc: { ticketNumber: 1 } } ) That all works fine, its when I try to find it later…
In MongoDB, what does it mean to have the required = true condition for a field in a collection? Can the value be null?
A collection has an indexed involved field_A. But field_A is not required. So what happens if some documents do not have this field? Will the index still work for documents that do have this field?