How to export a subdocument without creating an empty collection-CodePudding

I am trying to create a document that has an array of another sub-document. I need to be able to export the sub-document for use elsewhere. I am using mongoose.model and this works, however, it creates an empty collection in my database that is just never used. How can I prevent this behavior?

Usage example:

    const mongoose = require("mongoose");
    
    const ChildSchema = new mongoose.Schema({
        childName: String
    });
    
    const ParentSchema = new mongoose.Schema({
        parentName: String,
        children: [ChildSchema]
    });
    
    module.exports = {
        Parent: mongoose.model("parent", ParentSchema),
        Child: mongoose.model("child", ChildSchema)
    }

CodePudding user response：

You can do it with autoCreate and autoIndex options on your Schema:

const ChildSchema = new mongoose.Schema({
  autoCreate: false,
  autoIndex: false,
  childName: String
});

const ParentSchema = new mongoose.Schema({
  parentName: String,
  children: [ChildSchema]
});