django-cassandra-engine 0.0.5

Django Cassandra Engine - the Cassandra backend for Django

django-cassandra-engine is a database wrapper for Django Framework. It uses latest Cqlengine which is currently the best Cassandra CQL 3 Object Mapper for Python.

License:

2-clause BSD

Keywords:

django, cassandra, orm, nosql, database, python

URL (pypi):

django-cassandra-engine

Requirements

• cassandra

• cqlengine

• django-nonrel

• djangotoolbox

Features

• complete django integration

• working syncdb and flush commands

• support for creating/destroying test database

• accept all Cqlengine connection options

• automatic connection/disconnection handling

• support for multiple databases (also relational)

Installation

Recommended installation:

pip install django-cassandra-engine

Usage

1. Add django-cassandra-engine to INSTALLED_APPS in your settings.py file:

   INSTALLED_APPS += ('django_cassandra_engine',)

2. Also change DATABASES setting:

   DATABASES = {
       'default': {
           'ENGINE': 'django_cassandra_engine',
           'NAME': 'db',
           'TEST_NAME': 'test_db',
           'HOST': 'db1.example.com,db2.example.com',
           'OPTIONS': {
               'replication': {
                   'strategy_class': 'SimpleStrategy',
                   'replication_factor': 1
               }
           }
       }
   }

3. Define some model:

   #  myapp/models.py
   import uuid
   from cqlengine import columns
   from cqlengine.models import Model
   
   class ExampleModel(Model):
       read_repair_chance = 0.05 # optional - defaults to 0.1
       example_id      = columns.UUID(primary_key=True, default=uuid.uuid4)
       example_type    = columns.Integer(index=True)
       created_at      = columns.DateTime()
       description     = columns.Text(required=False)

4. Run ./manage.py syncdb

5. Done!

Links

• Changelog