Update Elements in Array

Question

Lets say I have this Object:

{town_id: 13, houses_data: [
    {house_id: 5, price: 32, description: \"thats a house\"},
    {house_id: 2, price: 12, descript         


        

Answer 1

You might use $ to update the first embedded document matching the given query:

db.test.town.update({town_id: 13, "houses_data.house_id":5},
                    {$set: { "houses_data.$.description": "sold"}})