Add and update child arrays value in Mongo db - arrays

Question

I want to add value in array of the following json structure in mongo db collection "Scdtls".
I need to add value only where "Type": "Fees" and "IsCurrentVersion": true.
{
"_id": ObjectId("60e71243b484cf3ec22a6845"),
"Item": "School",
"Text": "School Details",
"Types": [
{
"Type": "Library",
"Values": [
{
"IsCurrentVersion": false,
"KeyWords": [
{
"_id": ObjectId("611a4f113800d6af3fc4814f"),
"Value": "Physics"
}
]
}
]
},
{
"Type": "Fees",
"Values": [
{
"IsCurrentVersion": false,
"KeyWords": [
{
"_id": ObjectId("611a4f113800d6af3fc4814f"),
"Value": "Admission"
},
{
"_id": ObjectId("611a4f113800d6af3fc4814k"),
"Value": "Canteen"
}
]
},
{
"IsCurrentVersion": true,
"KeyWords": [
{
"_id": ObjectId("611a4f113800d6af3fc4814g"),
"Value": "Tution"
}
]
}
]
}
]
}
This is how I am trying
db.Scdtls.update({
"Item": "School",
"Types.Type": "Fees",
"Types.Values.IsCurrentVersion": true
},
{
"$push": {
"Types.1.Values.$[].KeyWords": {
"_id": ObjectId(),
"Value": "Sports"
}
}
})
But it is also adding "Value": "Sports" in "Type" : "Fees" where "IsCurrentVersion": false.
Not able to understand the reason.

Answer 1

If I understand correctly, you can do the update you want using "arrayFilters", like this:
db.Scdtls.update({
"Item": "School",
"Types.Type": "Fees",
"Types.Values.IsCurrentVersion": true
},
{
"$push": {
"Types.$[x].Values.$[y].KeyWords": {
"_id": ObjectId("deadbeafcafebabec0deface"),
"Value": "Sports"
}
}
},
{
"arrayFilters": [
{ "x.Type": "Fees" },
{ "y.IsCurrentVersion": true }
]
})
Try it on mongoplayground.net.