How can I create unique IDs for embedded documents in MongoDB?

Question

So I need to reference particular subdocuments uniquely from items in my collection. For instance:

User = {
    \'name\': \'jim\',
    \'documents: [
        {\         


        

Answer 1

And this is how you can do it in python (pymongo):

from pymongo import MongoClient
import bson

client = MongoClient('mongodb://localhost:27017/')
db = client.test_db

result=db.users.insert_one({'name': 'jim',
    'documents': [
        {'_id': bson.objectid.ObjectId(), 'title': "My document"},
        {'_id': bson.objectid.ObjectId(), 'title': "My second document!"},
    ]})

print list(db.users.find({}))