MongoDB function and how to call it? - mongodb

Question

I'm new to MongoDB and I found this function on the web. it's going to work for my all queries.
For settings.amount, settings.balance etc..
exports.updateUsers = function ( user_id, where, what, pass ) {
var _where = 'settings.'+where; //when I use it doesn't update
var update = {};
update[_where] = what;
user.findOneAndUpdate(
{'user_id' : user_id},
update).exec(function(e,d){
pass("ok")
})
};
Could anyone explain to me how can I call this query to update balance or amount?
Could anyone give me an example of updating something?

Answer 1

You can use it like this:
const { updateUsers } = require('./pathToFile.js'); // add the correct path;
// assuming you want to update the balance of a user to 69
updateUsers('some id', 'balance', 69, (result) => {
if(result === 'ok') {
// do something
} else if(result === 'bad') {
// you have an error
}
})
I would also change updateUsers to handle errors:
exports.updateUsers = function (user_id, where, what, pass) {
var _where = 'settings.' + where; //when I use it doesn't update
var update = {};
update[_where] = what;
user.findOneAndUpdate(
{ 'user_id': user_id },
update).exec(function (error, d) {
if (!error) {
pass('ok');
} else {
pass('bad')
}
})
};