How to update in Mongoose query Object - node.js

Question

I need to change the status to Y for particular comment if i click approved button in UI, My document structure is below.
{
"_id" : ObjectId("5a1fd0ffef39ff11ae353d10"),
"file_name" : "Profile",
"file_type" : "docx",
"created_date" : ISODate("2017-11-28T10:29:10.373Z"),
"updated_date" : ISODate("2017-11-28T12:39:32.148Z"),
"comments" : [
{
"created_date" : ISODate("2017-11-28T13:23:51.472Z"),
"status" : "N",
"comment_text" : "Yes...",
"username" : "Vishnu"
},
{
"created_date" : ISODate("2017-11-28T13:24:15.938Z"),
"status" : "N",
"comment_text" : "Yes...",
"username" : "Vishnu"
},
{
"created_date" : ISODate("2017-11-28T13:28:44.455Z"),
"status" : "N",
"comment_text" : "fsdfdsf",
"username" : "T"
},
{
"created_date" : ISODate("2017-11-28T13:29:22.132Z"),
"status" : "N",
"comment_text" : "fdsfsdf",
"username" : "dasdas"
},
{
"created_date" : ISODate("2017-11-28T13:29:46.247Z"),
"status" : "N",
"comment_text" : "fdgdfgfd",
"username" : "Vishnu T"
}
]
}
I have tried some query which was already in stackover flow like
mongo.filemanager.update(
{ "_id": req.body.id, "comments.comment_text": req.body.comments },
{ "$set": { "comments.$.status": 'Y' } }
)
But status value is not get changing. am using mongoose here.
Kindly help me in this issue.. Thanks In advance
Updated
mongo.filemanager.findOneAndUpdate(
{ "_id": req.body.id, "comments.comment_text": req.body.comments },
{
"$set": { "comments.$.status": 'Y' }
},
function(err,doc) {
if (err) throw err
console.log("Updated Commentstatus")
}
);

Answer 1

Here is the syntax of update in mongoose.
Model.update(conditions, update, options, callback);
So,
$set should be the second paramter,
try
mongo.filemanager.update({ "_id": req.body.id, "comments.comment_text": req.body.comments },{ "$set": { "comments.status": 'Y' } })
Mongoose official Documentation
You can also use findOneAndUpdate,
mongo.filemanager.findOneAndUpdate(
{ "_id": req.body.id, "comments.comment_text": req.body.comments },
{
"$set": { "comments.status": 'Y' }
},
function(err,doc) {
}
);

Answer 2

I've made an example that look like your case, interesting.
You can simulate mongodb terminal online in here for free