How to update and delete item from array in mongoose? - node.js

Question

I have a board object and I want to edit it from express and mongoose, this is my object:
"boardMembers": [
"5f636a5c0d6fa84be48cc19d",
],
"boardLists": [
{
"cards": [
{
"_id": "5f7c9b77eb751310a41319ab",
"text": "card one"
},
{
"_id": "5f7c9bb524dd8d42d469bba3",
"text": "card two"
}
],
"_id": "5f7c9b6b02c19f21a493cb7d",
"title": "list one",
"__v": 0
}
],
"_id": "5f63877177beba2e3c15d159",
"boardName": "board1",
"boardPassword": "123456",
"boardCreator": "5f636a5c0d6fa84be48cc19d",
"g_createdAt": "2020-09-17T15:57:37.616Z",
"__v": 46
}
Now this is my code, I tried to do it with $pull, but nothing happend when I check it on Postman
router.put("/delete-task/:list/:task", auth, boardAuth, async (req, res) => {
const listId = req.params.list;
const task = req.params.task;
const board = await Board.findOne({ _id: req.board._id });
if (!board) return res.status(404).send("no such board");
Board.findOneAndUpdate(
{ _id: req.board._id },
{ $pull: { "boardLists.$[outer].cards": { _id: task } } },
{
arrayFilters: [{ "outer._id": listId }],
}
);
await board.save();
res.send(board);
});
what I am missing here?

Answer 1

Hope this will work in your case, you just need to convert your ids into mongo objectId. So your code will look something like this:
import mongoose from "mongoose";
const task = mongoose.Types.ObjectId(req.params.task);
const listId = mongoose.Types.ObjectId(req.params.list);
board = await Board.findOneAndUpdate(
{ _id: req.board._id},
{ $pull: {
"boardLists.$[outer].cards": { _id: task }
}
},
{
arrayFilters: [{ "outer._id": listId }],
returnNewDocument: true
}
);
res.send(board);