How to update a specific nested array inside a MongoDB document - node.js

Question

So I have a primary mongoDB object that has multiple documents nested within. I want to access a specific document in an array and modify one of its values. This is my document setup
const sectionSchema = new mongoose.Schema({
name: String,
items: [itemSchema],
currentAmount: {
type: mongoose.Decimal128,
default: 0
},
limitAmount: {
type: mongoose.Decimal128,
required: true
},
isActive: {
type: Boolean,
default: 0
}
});
const Section = new mongoose.model("Section", sectionSchema);
const userSchema = new mongoose.Schema({
username: {
type: String,
required: true,
unique:true
},
email: {
type: String,
lowercase: true,
trim:true,
required: true,
unique: true
},
password: {
type: String,
required: true
},
sections: [sectionSchema]
});
const User = new mongoose.model("User", userSchema);
I've added some dummy values to fill the database, including the other testSection and testItems.
const testSection2 = new Section({
name: "Vacation",
items: [testItem3,testItem4],
currentAmount: 0,
limitAmount: 800,
isActive: 1
});
const testUser = new User({
username: "wavey123",
email: "wvy#123.com",
password: "wvy123",
sections: [testSection1,testSection2]
});
I've tried different iterations of the .findOneAndUpdate methods with no success like:
app.post("/sSelect", function(req,res){
const selectedSection = req.body.sectionName;
User.findOneAndUpdate({sections: {$elemMatch: {isActive: 1}}},{sections: {isActive: 0}},{new: true}, function(err, aSection){
if (err){
console.log(err)
}
console.log(aSection);
})
User.findOneAndUpdate(({sections: {$elemMatch: {name: selectedSection}}}),{$set: {sections: {isActive: 1}}},{new: true}, function(err, aSection){
if (aSection){
res.redirect("/");
}
})
I end up with my base document looking like this:
[
{
_id: ObjectId("629a971bb8a72843a07df0fd"),
username: 'wavey123',
email: 'wvy#123.com',
password: 'wvy123',
sections: [
{
currentAmount: Decimal128("0"),
isActive: false,
_id: ObjectId("629a9756792a3b21872c329f"),
items: []
}
],
__v: 0
}
]
This happens after the first .findOneAndUpdate. Cant seem to get my head around it.

Answer 1

so i just scrapped the whole .findOneAndUpdate and just used JS to find the isActive key and manipulate it like so:
app.post("/sSelect", function(req,res){
const selectedSection = req.body.sectionName;
User.findOne({}, function(err, aSection){
aSection.sections.forEach(function(section){
if(section.isActive === true){
section.isActive = false;
console.log(section.isActive)
aSection.save();
}
})
});
User.findOne({}, function(err, aSection){
aSection.sections.forEach(function(section){
if(section.name === selectedSection){
section.isActive = true;
console.log(section.name,section.isActive)
aSection.save();
}
})
});
res.redirect("/");
:)