mongoDB upsert on array

Question

my db model looks like this

\"clientId\":\"123456\"
\"devices\" : 
[{
      \"deviceId\" : \"123\",
      \"deviceType\" : \"ios\",
      \"notificat         


        

Answer 1

You're looking for a typical positional operator case:

db.coll.update
(
    {
        "clientId":"123456","devices.deviceId":"321"
    },
    {
        $set:
        {
            "devices.$.deviceType":"kindle","devices.$.notification":"false"
        }
    }
)

You need to update an element matched inside an array, $ does this for you, so you can find a document with a specific element inside of an array and "remember" with the positional operator $ which one you matched to update it.