Update documents nested multiple levels in an array - arrays

Question

I have this JSON structure in MongoDb and want to update changing a specific value of a particular item in a nested array. I would like to change the key targetAreaId from USER_MESSAGE to VISUAL_MESSAGE.
{
"_id" : "5cde9f482f2d5b924f492da2",
"scenario" : "SCENARIOX",
"mediaType" : "VISUAL",
"opCon" : "NORMAL",
"stepConfigs" : [
{
"stepType" : "STEPX",
"enabled" : true,
"configs" : [
{
"contentTemplateId" : "5cde9f472f2d5b924f492973",
"scope" : "STANDARD",
"key" : "CONTENT"
},
{
"priorityId" : "5cde9f472f2d5b924f49224f",
"scope" : "STANDARD",
"key" : "PRIORITY"
},
{
"targetAreaId" : "USER_MESSAGE",
"scope" : "STANDARD",
"key" : "TARGET_AREA"
}
],
"description" : "XPTO"
}
],
"scope" : "STANDARD" }
How can I do it in the same time?
EDIT
I am trying this way:
var cursor = db.getCollection('CollectionX').find({
"scenario": "SCENARIOX",
"stepConfigs.stepType": "STEPX",
"stepConfigs.configs.key": "TARGET_AREA"
});
if (cursor.hasNext()) {
var doc = cursor.next();
doc.stepConfigs.find(function(v,i) {
if (v.stepType == "STEPX") {
doc.stepConfigs[i].configs.find(function(w,j) {
if (w.key == "TARGET_AREA") {
var result = db.getCollection('CollectionX').update(
{ "_id" : doc._id },
{ "$set" : { doc.stepConfigs[i].configs[j].targetAreaId: "VISUAL_MESSAGE" }}
);
}
});
};
});
} else {
print("Step does not exist");
}
But the error below is occurring:
Error: Line 15: Unexpected token .

Answer 1

I don't think that's possible.
You can update the specific element you want using this query:
db.test_array.updateOne({}, {
$set: {
"stepConfigs.$[firstArray].configs.$[secondArray].targetAreaId": "VISUAL_MESSAGE"
}
}, {
arrayFilters: [{
"firstArray.stepType": "STEPX"
}, {
"secondArray.targetAreaId": "USER_MESSAGE"
}]
})
But pushing in the same array at the same time does render this (this was for the original model, but it's still the same problem, you can't $set and $push in the same array this way):
> db.test_array.updateOne({"step.type":"B"},{$push:{"step.$.configs":{"className":"something"}}, $set:{"step.$.configs.$[secondArray].targetAreaId":"TA-1"}},{arrayFilters:[{"secondArray.targetAreaId":"TA-2"}]})
2019-09-06T13:53:44.783+0200 E QUERY [js] WriteError: Updating the path 'step.$.configs.$[secondArray].targetAreaId' would create a conflict at 'step.$.configs' :