django-right-to-left 0.1.1
A Django template loader that looks for an alternative right to left version of a template file if the activated language is a right to left language such as Arabic or Hebrew.
License: BSD
Keywords: Django,translation,internationalization,righ to left,bidi

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django-right-to-left
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Summary
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A Django template loader that looks for an alternative right to left version of a template file if the activated language is a right to left language such as Arabic or Hebrew. 

This provides a clean and easy way to customise the markup in your templates without having to place conditional logic in your templates.

The most common use case for this would be a Django website that supports both a left to right and right to left language, such as English and Arabic.

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Example
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Suppose you had the following Django template::

    # homepage.html
    {% extends "layout.html" %}
    
    {% block content %}
        <div id="main_content">...</div>
        <div id="side_promo">...</div>   
    {% endblock %}

To swap the content around when the activated language is Arabic, an IF statement would have to be wrapped around the div tags. This may be a feasible solution for small templates but for most templates this will make the template very hard to read and messy. 

Using the django-right-to-left template loader makes this process a lot cleaner by allowing you to create an alternative template with the same name but with "_rtl" appended to the file name. In this example, a file called "homepage_rtl.html" will be picked up as the alternative.

Now when a template is rendered, regardless of whether it is rendered by a Django view or by extending another template using the "extends" block or included using the "include" block, the django-right-to-left template loader will look to see if an alternative template suffixed with "_rtl" exists. If it doesn't exist it will load the standard version of the template.

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Installation
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You can install django-right-to-left using pip::

    $ pip install django-right-to-left

or easy_install::

    $ easy_install django-right-to-left

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Instructions
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django-right-to-left works in exactly the same way as the Django `cached template loader <https://docs.djangoproject.com/en/dev/ref/templates/api/#django.template.loaders.cached.Loader>`_.
The django-right-to-left template loader is a class-based loader that you configure with a list of other loaders that it should wrap.

Simply wrap the template loaders defined in your settings file with the django-right-to-left-loader.

For example, if you are currently using the filesystem loader and app_directories loader, 
change the ``TEMPLATE_LOADERS`` settings from::

    TEMPLATE_LOADERS = (
        'django.template.loaders.filesystem.Loader',
        'django.template.loaders.app_directories.Loader',
    )

to this::

    TEMPLATE_LOADERS = (
        ('rtl.loaders.Loader', (
            'django.template.loaders.filesystem.Loader',
            'django.template.loaders.app_directories.Loader',
        )),
    )

That's all there is to it. All you have to do now is create your alternative templates, ensuring that the string "_rtl" is appended to the filename. So the alternative template for "homepage.html" will be "homepage_rtl.html".

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Running the tests
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django-right-to-left has a small but extensive test suite. You can run the tests by running the 
following commands, assuming you 
have `virtualenvwrapper <http://www.doughellmann.com/projects/virtualenvwrapper/>`_ installed::

    $ git clone git@github.com:abbas123456/django-right-to-left.git
    $ cd django-right-to-left
    $ mkvirtualenv django-right-to-left
    $ pip install -r requirements.txt
    $ ./runtests.py