Call statics in mongoose.Schema from another mongoose.Schema

Question

I use mongoose Schema , I've two js file;

first.js:

 const mongoose = require('mongoose')

    var FirstSchema= new mongoose.Schema({

        F1: {
            type: Boolean,
            default: null
        },
        F2: {
            type: Boolean,
            default: null
        }
    })


    FirstSchema.statics.add_to = function (_param) {
           //DO SOMETHING
    }

    var First = mongoose.model('First', FirstSchema )

    module.exports = {
        First
    }

socound.js :

 const mongoose = require('mongoose')
 var { First } = require('../func/first.js')

 var SocoundSchema = new mongoose.Schema({

    S1: {
        type: Boolean,
        default: null
    },
    S2: {
        type: Boolean,
        default: null
    }
})


 SocoundSchema.statics.add_other = function (_param) {

        return new Promise((resolve, reject) => {

            return First.add_to(_param).then((Result) => {
                return resolve(Result);
            }, (err) => {
                return reject(err);
            })

         })
}

var socound = mongoose.model('socound', SocoundSchema )

module.exports = {
    socound 
}

When I call First.add_to, it does not work.

I tested different codes and methods, but failed...

How can I use the static in a mongooseSchema in another mongooseSchema? Does it have a solution?

Answer 1

In the socound.js there is a problem in your .add_other function(missing parentheses):

SocoundSchema.statics.add_other = function (_param) {

    return new Promise((resolve, reject) => {

        return First.add_to(_param)
        .then((Result) => {
            return resolve(Result);
        }, (err) => {
            return reject(err);
        })

     })
}

and you are using .then when calling First.addd_to() so its supposed to be a Promise, i just added async to the code

First.js:

FirstSchema.statics.add_to = async function (_param) {
       //DO SOMETHING
       console.log('ayy');
       return true;
}