django-template-utils / docs / context_processors.txt

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Context processors for settings

It's often useful for an application to expose the values of certain
settings -- especially custom settings -- for use in
templates. Django's ``RequestContext`` and context processors provide
an easy way to automatically add certain variables to every template
context, but (for good reasons) Django does not provide a context
processor which can expose the values of settings.

This module provides a simple function which can generate context
processors for settings, and a pre-generated context processor for the
most common use case: media settings.


This function takes a list of setting names, and returns a new
function: a context processor which will add the values of those
settings to any ``RequestContext`` in which it is used.

So, for example, you might define a file ```` in
your application, and place the following in it::

    from template_utils.context_processors import settings_processor
    my_settings_processor = settings_processor('INTERNAL_IPS', 'SITE_ID')

The function ``my_settings_processor`` would be a context processor
which added the values of the settings ``INTERNAL_IPS`` and
``SITE_ID`` to each ``RequestContext`` in which it was used, and then
you would just need to add
``myproject.myapp.context_processors.my_settings_processor`` (changing
the name to suit the actual names of your project and application, of
course) to your `` TEMPLATE_CONTEXT_PROCESSORS`` setting.


This is a pre-generated context processor which adds the values of the
settings ``MEDIA_URL`` and ``ADMIN_MEDIA_PREFIX`` to each
``RequestContext`` in which it is used.

To enable it, add ```` to your
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