una-django-cassandra-engine

Django Cassandra Engine - the Cassandra backend for Django


Keywords
django cassandra engine backend driver wrapper database nonrel cqlengine, cassandra, django, django-cassandra-engine, python, scylladb
License
BSD-2-Clause
Install
pip install una-django-cassandra-engine==5.0.16

Documentation

Django Cassandra Engine - the Cassandra backend for Django

All tools you need to start your journey with Apache Cassandra and Django Framework!

Latest version CI Donate

Features

  • integration with latest python-driver and optionally dse-driver from DataStax
  • working flush, migrate, sync_cassandra, inspectdb and dbshell commands
  • support for creating/destroying test database
  • accepts all Cqlengine and cassandra.cluster.Cluster connection options
  • automatic connection/disconnection handling
  • works well along with relational databases (as secondary DB)
  • storing sessions in Cassandra
  • working django forms
  • usable admin panel with Cassandra models

Installation

Recommended installation:

pip install django-cassandra-engine

Basic Usage

  1. Add django_cassandra_engine to INSTALLED_APPS in your settings.py file:

     INSTALLED_APPS = ('django_cassandra_engine',) + INSTALLED_APPS
    
  2. 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 cassandra.cqlengine import columns
     from django_cassandra_engine.models import DjangoCassandraModel
    
     class ExampleModel(DjangoCassandraModel):
         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 sync_cassandra

  5. Done!

Documentation

The documentation can be found online here.

Donation

If this project help you reduce time to develop, you can give me a cup of coffee :)

Donate

License

Copyright (c) 2014-2020, Rafał Furmański.

All rights reserved. Licensed under BSD 2-Clause License.