Update nested array document in mongoDB [duplicate] - mongodb

Question

This question already has answers here:
Updating a Nested Array with MongoDB
(2 answers)
Closed 5 years ago.
I have mongo document like
{
"_id" : ObjectId("59ad2dbd7549de7c69ef0132"),
"customerId" : "TELEFONICA",
"organization" : "TELEFONICA",
"description" : "",
"events" : [
{
"id" : "abandonCartEvent",
"name" : "Abandoned Cart Event",
"attributes" : [
{
"attrId" : "geoLocation",
"attrName" : "Customer Location",
"defaultValue" : "London"
},
{
"attrId" : "traits",
"attrName" : "Customer Traits",
"defaultValue" : "Sports Lover"
}
]
},
{
"id" : "resumeEvent",
"name" : "Resume Event",
"attributes" : [
{
"attrId" : "geoLocation",
"attrName" : "Customer Location",
"defaultValue" : "London"
},
{
"attrId" : "traits",
"attrName" : "Customer Traits",
"defaultValue" : "Sports Lover"
}
]
},
{
"id" : "cancelEvent",
"name" : "Cancel Event",
"attributes" : [
{
"attrId" : "geoLocation",
"attrName" : "Customer Location",
"defaultValue" : "London"
},
{
"attrId" : "traits_",
"attrName" : "Customer Traits",
"defaultValue" : "Sports Lover"
}
]
}
]
}
Here I want to update "attributes" array, i.e, I need to modify any one object of attributes array.
Can someone provide me solution for updating this nested document

Answer 1

You have to wait for the next version of mongodb to this. Check this.
Untill that time, redesign your document structure in a way so that it has one array(not double nested array) or traverse second array on application level.

Answer 2

Above you given same document I mentioned output scenario,
If are you going to update id : "abandonCartEvent" & attrId : "geoLocation" ,
update({ "customerId" : "TELEFONICA", "events.id":"abandonCartEvent"}, {$set: {"events.0.attributes.0.attrId": "CustLocation"}})
1a. If are you going to update attrId: "traits"
update({ "customerId" : "TELEFONICA", "events.id":"abandonCartEvent"}, {$set: {"events.0.attributes.1.attrId": "traidstTest"}})
If are you going to update Id: "resumeEvent" arrtID ?
update({ "events.id":"resumeEvent"}, {$set: {"events.1.attributes.0.attrId": "GeoLocationSS"}})
Same like if are you updating cancelEvent id,
update({ "events.id":"cancelEvent"}, {$set: {"events.2.attributes.0.attrId": "GeoLocationSTested"}})
I hope, you will understand the update on array fields.
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Thanks