I am building an app to make simple surveys, and I am using mongoose. I setup a single entity to define surveys, and this entity includes questions and answers
const mongoose = require("mongoose");
const {User} = require("./User");
const SurveySchema = mongoose.Schema({
user: {
type: mongoose.Schema.Types.ObjectId,
ref: 'User',
required: true
},
title: {
type: String,
minLength: 5,
maxlength: 100,
required: true
},
// other fields///
questions: [{
question: {
type: String,
minLength: 10,
maxlength: 200,
required: true
},
answers: [{
type: String,
minLength: 10,
maxlength: 100,
required: false
}],
}],
}, {timestamps: true} );
module.exports.Survey = mongoose.models.Survey || mongoose.model('Survey', SurveySchema);
when I need to add a question to a survey, I am doing this (answers is just an array of strings)
let survey = await surveyManager.getSurvey(surveyId);
let newQuestion = {
question: question,
answers: answers
};
survey.questions.push(newQuestion);
await survey.save();
return survey;
and this is my new question as seen quering mongodb from the command line
"questions" : [
{
"question" : "this is a question?",
"answers" : [
"answer number 1",
"answer number 2",
"answer number 3"
],
"_id" : ObjectId("63a89d2e101149d7958e0f78")
}
],
as you can see, an object id is assigned to each question, which is fine. So my question is, how can I assign an object id to each answer as well? I’d need it to refer to then form another collection.
2
Answers
I suppose you could declare your
answers
like so and this will automatically assign an_id
to them:You can just set the answers to be an object, and Mongoose will add a new
_id
to each item in the array: