Mobile middleware success!

middleware.py

from django.conf import settings

class MobileTemplateMiddleware:

	def process_request(self, request):
		
		host = request.META.get('HTTP_HOST', '')
		host_s = host.split('.')
		if len(host_s) > 1:
			subdomain = host_s[0]
		else:
			subdomain = None
		
		# This is where the magic happens	
		if subdomain == settings.MOBILE_SUBDOMAIN:
			settings.TEMPLATE_DIRS = settings.MOBILE_TEMPLATE_DIR + settings.TEMPLATE_DIRS
	
		request.subdomain = subdomain
		request.host = host

###
### The relevant settings:
###

# List of callables that know how to import templates from various sources.
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
)

import os.path
PROJECT_PATH = os.path.abspath(os.path.dirname(__file__))# this is not Django setting.

TEMPLATE_DIRS = (
    os.path.join(PROJECT_PATH, "templates"),
)

MOBILE_SUBDOMAIN = 'm'
MOBILE_TEMPLATE_DIR = os.path.join(PROJECT_PATH, "mobile_templates"),

MIDDLEWARE_CLASSES = (
	#...
    'middlewaretest.web.middleware.MobileTemplateMiddleware',
    #...
)