Update inner object of mongo model with innder id - node.js

Question

My Model which has coure_name, c_material as array, c_task as array and I am trying to fetch the results based on the below query:
const taks_schema = mongoose.Schema({
course_name : {
type : String,
required : true,
unique : [true, "Someone register using this email"],
trim : true
},
c_material : [
{
m_name : {
type : String
},
m_link : {
type : String
},
m_file : {
type : String
},
m_date : {
type : String
}
}
],
c_task : [
{
t_name : {
type : String
},
t_details : {
type : String
},
t_start_date : {
type : Date
},
t_end_date : {
type : Date
},
t_q_file : {
type : String
},
t_s_file : [
{
t_s_email: {
type : String
},
t_s_file_inner : {
type : Array
},
t_s_file_Date : {
type : Date
}
}
]
}
]
});
I apply this query which searches through the database, but get 0 modified in the result object.
let submit_files = await stu_task.updateOne({$and: [{course_name : "Web Development with Node js"}, {c_task : {_id : req.body.task_id}}]}, {$set : {c_task : {t_s_file : {t_s_email : check_cookie.email, t_s_file_inner : files_names, t_s_file_Date : Date.now()}}}});
Is there any problem in the query that I have created?

Answer 1

You don't have "c_task._id" defined in the schema , but you have it in the updateOne search criteria ...

Answer 2

You also need arrayFilters to update nested arrays check the documentation and also you need a id to search in t_s_file array in following query is used t_s_email field because I don't know the real data, so I searching in t_s_file based on t_s_email can using _id if exist
await stu_task.updateOne(
{
$and: [
{ course_name: "Web Development with Node js" },
{ "c_task._id": req.body.task_id },
],
},
{
$set: {
"c_task.$[].t_s_file.$[i].t_s_email": {
t_s_email: check_cookie.email,
t_s_file_inner: files_names,
t_s_file_Date: Date.now(),
},
},
},
{ arrayFilters: [{ "i.t_s_email": "email#gmail.com" }] }
);