node mongoose updating an Object in Array doesn't work - node.js

Question

I am trying to update an Array of objects wo any success..
the update statement does not work ..
I may have to update the table instance array and update it with the new valueand then save the table...
const picked = table.meta.permissions.find(obj => obj._id == req.params.permissionId);
console.log('picked: %j', picked); // need to update it !
// how can I update this permission object with the new value from req.body ?
table.save()
.then(savedTable => res.json(savedTable))
.catch(e => next(e););
I have an Array of permissions in a 'meta' field:
MODEL
const Schema = mongoose.Schema;
const Permission = new Schema({
permission: {
role_id: { type: String },
canWrite: { type: Boolean }
}
});
const TableSchema = new mongoose.Schema({
meta: {
name: { type: String, required: true },
permissions: [Permission],
...
},
...
);
In the controller , I firstly load the requested table and append it to the req object, then I execute the updatePermission function, and try to update the table instance permission with new values using $set
CONTROLLER
import Table from '../../models/table.model';
/**
* Load table and append to req.
*/
function load(req, res, next, id) {
Table.get(id)
.then((table) => {
req.table = table;
return next();
})
.catch(e => next(e));
}
function updatePermission(req, res, next) {
const table = req.table;
console.log('Current table.meta.permissions: %j', table.meta.permissions, '\n');
console.log('update permission: ', req.params.permissionId, ' with: ', req.body, '\n');
const query = { 'meta.permissions._id': req.params.permissionId }
const update = { $set: { 'meta.permissions.$.permission': req.body } };
const options = { new: true};
table.update(query, update, options)
.then(savedTable => res.json(savedTable))
.catch((e) => { next(e); });
}
The console log displays the current table permissions and the req.params and req.body
Why the update statement doesn't run correctly
thanks for feedback

Answer 1

I found a way to solve this issue but I don't know if it's the best one ?
I update the table object using some() then I save the table..
function updatePermission(req, res, next) {
const table = req.table;
table.meta.permissions.some((obj, idx) => {
if (obj._id == req.params.permissionId) {
table.meta.permissions[idx].permission = req.body;
return true;
}
return false;
});
table.save()
.then(savedTable => res.json(savedTable))
.catch(e => next(e); );
}