https://github.com/dcramer/django-db-routes

work in progress
https://github.com/dcramer/django-db-routes

Last synced: about 2 months ago
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work in progress

• Host: GitHub
• URL: https://github.com/dcramer/django-db-routes
• Owner: dcramer
• License: apache-2.0
• Created: 2014-02-07T21:27:21.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2014-02-07T21:42:51.000Z (almost 12 years ago)
• Last Synced: 2025-02-06T11:18:54.915Z (11 months ago)
• Language: Python
• Homepage:
• Size: 121 KB
• Stars: 20
• Watchers: 6
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst
  • License: LICENSE

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README

          
django-db-routes

================

The gist of the package is that we create a custom connection handler (``django.db.connections``) which

will map virtual shards to real databases. Databases end up being ``.shard``.

Partitioned Models

------------------

::

        DATABASES = {

            'mycluster': {

                'NAME': 'mycluster',

                'SHARDS': 1024,

                'HOSTS': [

                    {'HOST': '192.168.0.100'},

                    {'HOST': '192.168.0.101'},

                    {'HOST': '192.168.0.102'},

                    {'HOST': '192.168.0.103'},

                ],

            },

        }

Extend the PartitionModel class when creating your models:

::

    from django.db import models

    from dbroutes.models import PartitionModel

    class MyModel(PartitionModel):

        user_id = models.PositiveIntegerField()

        class Shards:

            routing_key = 'user_id'

            cluster = 'mycluster'

Query the nodes passing in your ``key``:

::

    objects = MyModel.objects.filter(user_id=1)