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Simple models and views to work with Couchbase in Django applications.

Project Description

Django CBTools

Django CBTools is a wrapper around Couchbase python library plus several hook to Sync-Gateway API.

The document search is done using Couchbase library (directly) connection to couchbase server, but saving and retrieving of the document is done using Sync-Gateway HTTP API. This is done in order to have documents available for mobile clients, which can get all benefits of Couchbase library only through Sync-Gateway.

The essential part of the package is models. They are inherited from Django models with almost all the benefits they have: can be validated with Django forms and have fields all sort of field you are used to have.

Installation

Pre-requisite

  • working Couchbase server / cluster
  • working Sync-Gateway server

Requirements

  • couchbase==2.0.2
  • django-extensions==1.5.5
  • django-tastypie==0.12.2
  • requests==2.7.0
  • shortuuid==0.4.2

couchbase package installation can be tricky. A recipe for Ubuntu 12:

sudo wget -O/etc/apt/sources.list.d/couchbase.list http://packages.couchbase.com/ubuntu/couchbase-ubuntu1204.list
wget -O- http://packages.couchbase.com/ubuntu/couchbase.key | sudo apt-key add -
sudo apt-get update
sudo apt-get install libcouchbase-dev libcouchbase2-libevent

For Ubuntu 14:

sudo wget -O/etc/apt/sources.list.d/couchbase.list http://packages.couchbase.com/ubuntu/couchbase-ubuntu1404.list
wget -O- http://packages.couchbase.com/ubuntu/couchbase.key | sudo apt-key add -
sudo apt-get update
sudo apt-get install libcouchbase-dev libcouchbase2-libevent

Quick Install

Install package:

pip install django-cbtools

The following configuration settings are used for the package (you can use the set below for the fast installation):

COUCHBASE_BUCKET = 'default'
COUCHBASE_HOSTS = ['127.0.0.1']
COUCHBASE_PASSWORD = None
SYNC_GATEWAY_BUCKET = 'default'
SYNC_GATEWAY_URL = 'http://127.0.0.1:4984'
SYNC_GATEWAY_ADMIN_URL = 'http://127.0.0.1:4985'
SYNC_GATEWAY_USER = "demo_admin"
SYNC_GATEWAY_PASSWORD = "demo_admin_password"
SYNC_GATEWAY_GUEST_USER = "demo_guest"
SYNC_GATEWAY_GUEST_PASSWORD = "demo_guest_password"

Add django_cbtools to INSTALLED_APPS:

INSTALLED_APPS = (
    # ...
    'django_cbtools',
)

Create folder couchbase_views in the project root.

Testing

You should create a testing couchbase bucket to run the package tests (and further your apps tests). For example default_test.

The testing bucket must contain test in the name. Otherwise some helper functions will raise exception.

Certianly SyncGateway configuration must also have to be configurated properly to take in account additional bucket, for example:

{
    "adminInterface":"0.0.0.0:4985",
    "databases": {
        "default": {
            "server": "http://127.0.0.1:8091",
            "bucket": "default"
        },
        "default_test": {
            "server": "http://127.0.0.1:8091",
            "bucket": "default_test"
        }
    }
}

Also you need an alternative settings.py to run tests. Probably you already have similar file to run your own tests. If you don’t it’s time to create it now. The following settings should be changed in order to run Couchbase-related tests properly:

  1. COUCHBASE_BUCKET is targetted to test bucket
  2. SYNC_GATEWAY_BUCKET is targetted to test bucket
  3. COUCHBASE_STALE is set to disable Couchbase caching

Like that, in file settings_test.py:

# ...
COUCHBASE_BUCKET = 'default_test'
COUCHBASE_STALE = False
SYNC_GATEWAY_BUCKET = 'default_test'
# ...

Now run tests as usual for django:

python manage.py test --settings=<your-project>.settings_test django_cbtools
Release History

Release History

This version
History Node

1.2.0

History Node

1.0.0

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