Support prop: [schema1, schema2] as a way of defining an array of length 2 with subdoc 0 having schema = schema1 and subdoc 1 having schema = schema2

[enkicoma]

Do you want to request a feature or report a bug?
Bug
What is the current behavior?
The schema will create 2 objects as scripted, but it will iterate twice with the values defined for object 1 in a children array.
If the current behavior is a bug, please provide the steps to reproduce.

const mongoose = require('mongoose');

const subAddressAV = new mongoose.Schema(
{
    nameAV: {
        type: String,
        default: "Available"
    },
    colorAV: {
        type: String,
        default: "rgb(40%, 100%, 40%)"
    },
    available: {
        type: Number,
        // required: [true, 'Please Pick a Number'],
        default : 0,
        min: 0,
        max: 100
    }
}
);
const subAddressNV = new mongoose.Schema(
    {
        nameNV: {
            type: String,
            default: "NonAvailable"
        },
        colorNV: {
            type: String,
            default: "rgb(100%, 83.5%, 0%)"
        },
        nonavailable: {
            type: Number,
            // required: [true, 'Please Pick a Number'],        
            default : 0,
            min: 0,
            max: 100
        }
    }
);

const subAddress = new mongoose.Schema({
    name: {
        type: String,
        // required: [true, 'Please add a Name'],
        unique: true,
        maxLength: [20, 'Name cannot be more than 20 characters']
    },
    description: {
        type: String,
        // required: true,
        maxLength: [400, 'Description cannot be more than 400 characters']
    },
    color: {
        type: String,
        // required: true,
    },
    createdAt: {
        type: Date,
        default: Date.now
    },
    children: [subAddressAV, subAddressNV]
});

const NoteSchema = new mongoose.Schema({
    team_title: {
        type: String,
        default: "TEAM"
    },
    team_description: {
        type: String,
        default: "We!!"
    },
    team_color: {
        type: String,
        default: "rgb(50.2%, 0%, 50.2%)"
    },
    children: [subAddress]   
})

module.exports = mongoose.models.Note || mongoose.model('Note', NoteSchema);

N/A
What is the expected behaviour?
The behaviour: it should return and assign the values for both objects when doing a POST request
the Post request:

{
    "children": [
        {
            "name": "swwss",
            "description": "sswws s",
            "children": [
                {
                    "nameAV": "sswwws",
                    "colorAV": "rbg(ww)",
                    "available":10
                },
                {
                    "nameNV": "sss",
                    "colorNV": "rbg(sswwss)",
                    "nonavailable":11
                }
            ]
        }
    ]
}

and te return is totally wrong:

{
    "success": true,
    "data": {
        "team_title": "TEAM",
        "team_description": "We!!",
        "team_color": "rgb(50.2%, 0%, 50.2%)",
        "_id": "603a78cbea92dc2cd76cf198",
        "children": [
            {
                "_id": "603a78cbea92dc2cd76cf199",
                "name": "swwss",
                "description": "sswws s",
                "children": [
                    {
                        "nameAV": "sswwws",
                        "colorAV": "rbg(ww)",
                        "available": 10,
                        "_id": "603a78cbea92dc2cd76cf19a"
                    },
                    {
                        "nameAV": "Available",
                        "colorAV": "rgb(40%, 100%, 40%)",
                        "available": 0,
                        "_id": "603a78cbea92dc2cd76cf19b"
                    }
                ],
                "createdAt": "2021-02-27T16:52:27.747Z"
            }
        ],
        "__v": 0
    }
}

more information: https://stackoverflow.com/questions/66306598/next-js-mongoose-schema-wrong-children-values-at-a-post-request
What are the versions of Node.js, Mongoose and MongoDB you are using? Note that "latest" is not a version.
I am using studio3t (localhost - mongo)

  "dependencies": {
    "d3": "5.12.0",
    "isomorphic-unfetch": "^3.1.0",
    "mongoose": "^5.11.17",
    "next": "10.0.6",
    "react": "17.0.1",
    "react-dom": "17.0.1",
    "semantic-ui-css": "^2.4.1",
    "semantic-ui-react": "^2.0.3",
    "sunburst-chart": "1.11.2"
  }

and

node --version
v15.8.0

is this possible at all, to have 2 objects in a child schema array?

[vkarpov15]

Unfortunately, new Schema({ children: [subAddressAV, subAddressNV] }) is equivalent to new Schema({ children: [subAddressAV] }) in Mongoose. We will need to add a new feature to support this.

As a workaround, you'll need to use embedded discriminators, or structure your data as an object rather than an array:

new Schema({
  subAddressAV,
  subAddressNV
});