Support for custom commands

[skion]

Is there any way to issue a custom command (like findAndModify) through public txmongo API? The only solution I found so far is via private methods:

http://pastie.org/pastes/809589

[fiorix]

It shouldn't be hard to implement. I'd accept a pull request with this.

[danieleapi]

I've tested the following and it seems to work. Any comment?

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

import txmongo
from twisted.internet import defer, reactor

from txmongo._pymongo.son import SON

@defer.inlineCallbacks
def example():
    mongo = yield txmongo.MongoConnection()

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

    # insert new document
    yield things.insert({"foo":"bar", "name":"bar_name"}, safe=True)

    # find_and_modify
    # @see: http://www.mongodb.org/display/DOCS/findAndModify+Command
    spec = SON([
        ("findAndModify", "things"),
        ("query", {"foo":"bar"}),
        ("update", {"$set": {"name": "changed_name"}}),
        ("new", True)])

    result = yield things._database["$cmd"].find_one(spec)
    print result

if __name__ == '__main__':
    example().addCallback(lambda ign: reactor.stop())
    reactor.run()

[danieleapi]

I've forked and updated here...
https://github.com/aappii/mongo-async-python-driver/commits/master
first tests are OK...

[fiorix]

Cool !!
Let me know when you're done so I can review the pull request and merge into master

[danieleapi]

done... hope it's ok now... previous pull request had a bug (worked only for findAndModify, not for generic commands)