#!/usr/bin/env python
# coding: utf-8
import asyncio

import asyncio_mongo

@asyncio.coroutine
def example():
    mongo = yield from asyncio_mongo.Connection.create('localhost', 27017)

    foo = mongo.foo  # `foo` database
    test = foo.test  # `test` collection

    yield from test.insert({"src":"Twitter", "content":"bla bla"}, safe=True)
    yield from test.insert({"src":"Twitter", "content":"more data"}, safe=True)
    yield from test.insert({"src":"Wordpress", "content":"blog article 1"}, safe=True)
    yield from test.insert({"src":"Wordpress", "content":"blog article 2"}, safe=True)
    yield from test.insert({"src":"Wordpress", "content":"some comments"}, safe=True)

    result = yield from test.group(keys=["src"],
        initial={"count":0}, reduce="function(obj,prev){prev.count++;}")

    print("result:", result)

if __name__ == '__main__':
    asyncio.get_event_loop().run_until_complete(example())