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Django configuration Utility to manage multiple "websites" in a project.

Project description

## ABOUT ##

This module provides you an API that lets you code django
applications such that those apps can segment themselves
into multiple sections and have different settings for each

For example, say I want to use the same app under two different
url paths and have different behavior (different settings) for both.


Also, say I want to enable or disable individual apps on those different
urls, via an admin interface.

Also, say I want to have a consistent way to define settings for those apps.

This module helps you to accomplish those things.


Install from pip

pip install site_config

Install from Github

git clone

This application allows you to specify different siteconfig backends.
The siteconfig backend is responsible for getting and setting settings
from/to a persistent location.

Currently, two backends are present in this module:

- model_backend
- settings_backend

The model_backend stores configuration settings in a set of
database models. It allows for customizing the settings for a given
app inside of the admin interface and allows for different
settings for different 'websites' inside an app. Choosing this
backend enables an Django admin module for setting these settings.

The settings_backend is a simple backend that uses
This is not dynamic; when an application needs a setting, this
backend just looks it up from



# If using model_backend

# if using settings_backend


SITECONFIG_BACKEND_DEFAULT (optional) = This specifies the default backend
that is to be used. If this setting is not defined, it defaults
to the model_backend.

Valid values for this are as follows:

"site_config.backends.model_backend.DatabaseBackend" # model_backend
"site_config.backends.settings_backend.SettingsBackend" # settings_backend

### CONFIGURING THE settings_backend ###

Set the following in

- SITECONFIG_SITEAPP_STATUS (optional) - This sets whether or not apps using this module should
be marked as active or not.
Valid values are: "disabled", "curtained", or "enabled"
The default is "enabled"

- SITECONFIG_CURTAIN_MESSAGE (optional) = This sets the curtain message string when
SITECONFIG_SITEAPP_STATUS is set to "curtained".

### CONFIGURING THE model_backend ###

You need to run the following if using the model_backend:

./ syncdb
./ migrate

## USAGE ##

In order to use this system, you have to implement several things
in your application.

1. Create a configuration class

Create add the following class in a django app's,
or some other location that is called when django first executes.
Define "application_short_name" and "application_verbose_name" attributes.

Implement the "get_default_configs()" method. This must return a
configuration dictionary where the keys are the configuration
variables for the application, and the values are nested metadata

Each nested dictionary must contain 3 keys:
- default = the default value that the key will take
- field = a django Field instance used to validate the value
- help (optional) = a help text entry that describes the key
- choices (optional) = a list of tuples constraining the input.
Only works with fields that are like ChoiceField that take
choices as part of the constructor
i.e. (('a_short_name','A text'),('b_short_name', 'B text'))

You also need to register the config class with the "register()" method.

See the example below:


import site_config

class FooSiteConfig(site_config.SiteConfigBase):

application_short_name = "foo"
application_verbose_name = "Foo Application"

# Optionally override if you want to customize the backend
# used for a given config.
def get_backend(self):
backend = getattr(settings, 'SITECONFIG_BACKEND_DEFAULT',
return backend

def get_default_configs(self):
return {'TEST_A':{'default':"Test A default",
'help':'Test A help text.'},
'help':'Test B help text.'}}


2. Enable and disable urls via enable_disable_website() decorator

In order to make use django_site_config's ability to enable and disable
particular views, you need to wrap your urls as follows. In order to
use this website switching functionality, you need to pass in the
"website" kwarg as part of the url string.


from django.conf.urls import patterns, include, url
from site_config.decorators import enable_disable_website, decorated_includes
from example.app_foo import FooConfig
from .views import IndexView

# Wrap a single url

urlpatterns = [
template_name='index.html'), FooConfig),

# OR you can decorate an entire include

urlpatterns += decorated_includes(lambda func: enable_disable_website(func, BarConfig),
patterns('', url(r'^(?P<website>\w+)/bar/', include('example.app_bar.urls')))

Note: You can also use this enable_disable_website() function to decorate
a django CBV or FBV according to the django documentation.

Note: Your views must accept the 'website' keyword argument.

3. Allow template overrides

This module also provides a means to override templates for a specific site.


Normally, if a FBV defines a template_name parameter in the url, say
"index.html", the view will lookup that template file via the normal
template loader chain.

However, the website_template_override() decorator will first try
to lookup a url at "[website]/index.html" and then fall back to using
the "index.html".


# Wrap a single url

urlpatterns = [

# OR you can decorate an entire include

urlpatterns += decorated_includes(website_template_override,
patterns('', url(r'^(?P<website>\w+)/bar/',

# OR you can use both decorators at once on an entire include.
urlpatterns += decorated_includes(
lambda func: enable_disable_website(func, BarConfig),
patterns('', url(r'^(?P<website>\w+)/bar/',

You then need to accept the website variable as a keyword argument
to your view function. The website variable can be used in your view logic.


# Function based view example
def index(request, template_name, website=None, *args, **kwargs):
config = BarConfig(website=website)
return render_to_response(template_name,


You should use the WebsiteOverrideTemplateViewMixin to allow for the
template override behavior.


from site_config.utils import WebsiteOverrideTemplateViewMixin
from site_config.decorators import website_template_override
from example.app_bar import BarConfig

class IndexView(WebsiteOverrideTemplateViewMixin, TemplateView):

def dispatch(self, request, *args, **kwargs): = kwargs.get('website', None)
self.config = BarConfig(
return super(IndexView, self).dispatch(request, *args, **kwargs)

def get_context_data(self, **kwargs):
kwargs['config'] = self.config
kwargs['website'] =
return kwargs

4. You can access settings in the view or template by calling the settings
like you would an attribute on the config class.

Here is a usage example:

from example.app_foo import FooConfig
c = FooConfig(website="joesite")

in order for the settings to be looked up dynamically (on each request), the
config class must be instantiated inside the view with the proper
website passed to the constructor (or None) on every request to the view.


You can override the template below to customize the curtain
page that displays when a Website Application as marked as
"curtained". Note, the default template extends "base.html"
so this will need to be present in your application.



pip install -e .[testing]
cd example/
./ test site_config

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