getting schema attributes from Mongoose Model

Question

I\'m using Mongoose.js to create models with schemas.

I have a list of models (many) and at times I\'d like to get the attributes/keys that make up a particular mo

Answer 1

You can use Schema.prototype.obj that returns the original object passed to the schema constructor. and you can use it in a utility function to build the object you're going to save.

import Todo from './todoModel'
import { validationResult } from 'express-validator'

const buildObject = (body) => {
    const data = {};
    const keys = Object.keys(Todo.schema.obj);
    keys.map(key => { if (body.hasOwnProperty(key)) data[key] = body[key] })
    return data;
}

const create = async (req, res) => {
    try {
        const errors = validationResult(req);
        if (!errors.isEmpty()) return res.json(errors);
        let toBeSaved = buildObject(req.body);
        const todo = new Todo(toBeSaved);
        const savedTodo = await todo.save();
        if (savedTodo) return res.json(savedTodo);
        return res.json({ 'sanitized': keys })
    } catch (error) {
        res.json({ error })
    }
}

another way is to to not call the buildObject function and add it in two lines but you will write every key you want to save

let { title, description } = req.body;
let toBeSaved = { title, description };

Using ES6 shorthand property names