MongoDB Manager for Django: providing native Django ORM support for Mongo DB.
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moma_django Release 0.1.0 : bugfix example static files location Mar 10, 2014
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README.rst

moma-django

Info:A Mongo Manager for Django, providing native Django ORM support for Mongo DB
Version: 0.1.1
Maintainer:Gadi Oren (http://cloudoscope.com)
Build Status

About

moma-django is a Mongo Manager for Django. It provides native Django ORM support for Mongo DB.

moma-django provides a framework to bridge between a SQL DB and the NonSQL MongoDB using a simple and powerful framework allowing an application to have models both on SQL database and on Mongo, and a quick experimentation / migration path from SQL only to a mixed model. Created and maintained by [Gadi Oren](http://twitter.com/gadioren), as a part of the [Lucidel](http://lucidel.com) and [Cloudoscope](http://cloudoscope.com) products.

Features

  • Adoption: changing a model to reside on MongoDB is as simple as changing the inheritance from django.db.models.Model to MongoModel!
  • Model features: large subset of the model capabilities is supported (e.g. unique together)
  • Enhanced model: Mongo models can include lists and dictionaries as a field
  • Django administration: most of the administration functions are supported for Mongo based models
  • Testing: support the creation of an alternative mongodb collection for unit tests
  • Relationships between models on SQL db and Mongo: limited support. ForeignKeys can be defined but transactions or cascading delete is not supported
  • Django query: support for queries (e.g. date__gte notation) as well as Q statements. Not supported yet: annotations and aggregations
  • Enhanced Django query: queries can include "drill into" objects. E.g. for a record entry = {a:3, b:{k1:4, k2:3,km:'a'}} you can query: qs = Entry.objects.filter(a__gte=2,b__km__regexp='^a$') ) (note the b__km__regexp "drill into")
  • South: applications can contain regular and mongo models. However, in order to use south, the mongo models should be excluded of the south management (see documentation on how to exclude mongo models)
  • loaddata_mongo: utility that allows loading of fixtures

Why?

There are other packages out there that create tight integration between MongoDB and django. Why use this one? This package was originally created as a part of very careful experimentation with MongoDB, and developed in small increments. The reason was that we couldn't afford a radical change like replacing the entire Django or moving completely to a NoSQL type of environment. This package allowed us to enjoy both worlds without massive impact on the project. It is used in production, as part of a high scale & performance project. If that is the type of decision and constraints that you are facing, this package may be a good option.

Installation

Get MongoDB:

Download the right version per http://www.mongodb.org/downloads

Get pymongo:

pip install pymongo=>2.1.1

Get the code:

pip install moma-django

Install the dependency in your settings.py:

INSTALLED_APPS = (
...
'moma_django',
...
)

Documentation

All the documentation for this project is hosted at http://moma-django.readthedocs.org.

Dependencies

  • Django 1.4.1
  • PyMongo 2.1.1
  • djangotoolbox 0.9.2

Quick start

Versioning

Releases will be numbered with the following format:

<major>.<minor>.<patch>

And constructed with the following guidelines:

  • Breaking backward compatibility bumps the major (and resets the minor and patch)
  • New additions without breaking backward compatibility bumps the minor (and resets the patch)
  • Bug fixes and misc changes bumps the patch

Bug tracker

Have a bug? Please create an issue here on GitHub that conforms with [the guidelines](https://github.com/).

https://github.com/gadio/moma-django/issues

Twitter account

Please follow us on Twitter, [@cloudoscope_inc](http://twitter.com/cloudoscope_inc). Keep up to date on announcements and more by following Gadi on Twitter, [@gadioren](http://twitter.com/gadioren).

Blog

Cloudoscope blog can be found [here](http://blog.cloudoscope.com). Read more detailed announcements, discussions, and more on [The Official Blog](http://blog.cloudoscope.com).

Developers

How to test: Please read [Example application README](https://github.com/gadio/moma-django/tree/master/moma_example/README.md) about running the unit tests.

More information

Watch the [presentation] (http://www.slideshare.net/GadiOren/moma-django-overviewshare) and the [video] (http://youtu.be/cxQKTDLjb-w)

Contributing

Please submit all pull requests against *-wip branches. When relevant, you must include relevant unit tests. Thanks!

Authors

Gadi Oren

Additional contributor https://github.com/Alerion (as part of a contract position with Lucidel)

Copyright and license

Copyright 2012 Lucidel, Inc., 2013 Cloudoscope Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in compliance with the License. You may obtain a copy of the License in the LICENSE file, or at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Support this project!

You can hire the lead maintainer to perform dedicated work on this package. Please email gadi.oren.1 at gmail.com.