How to create a dynamic nested mongoose document with the same schema on multiple levels

Question

Before everyone tells me I can't call a const before initializing, I do know that. But I think this is the simplest way to render the concept I have in mind, ( where any subdocument within the replies array also has the same schema as the parent, and documents within the replies array of those subdocuments also having the same schema ). I would really appreciate anyone's input.

const mongoose = require("mongoose");
const Schema = mongoose.Schema;

var commentSchema = new mongoose.Schema({
   content: String,
   createdAt: {
      type: Date,
      default: Date.now
   },
   score: {
      type: Number,
      default: 1
   },
   username: {
      type: String,
      lowercase: true
   },
   parent: { 
      type: Schema.Types.ObjectId,
      ref: 'comment'
   },
   replyingTo: String,
   replies: [commentSchema]
});

module.exports = mongoose.model("comment", commentSchema);

Answer 1

Since a const can't be called before initialization, to fix this issue the parent schema should be called on the children array after initialization the code below:

 commentSchema.add({ replies: [commentSchema] })

The final result should look like this:

 const mongoose = require("mongoose"); const Schema = mongoose.Schema; const commentSchema = new mongoose.Schema({ content: String, createdAt: { type: Date, default: Date.now }, score: { type: Number, default: 1 }, username: { type: String, lowercase: true }, parent: { type: Schema.Types.ObjectId, ref: 'comment' }, replyingTo: String, }); commentSchema.add({ replies: [commentSchema] })