from django.core.urlresolvers import RegexURLPattern, RegexURLResolver
from django.conf.urls.defaults import patterns, url, include
from django.contrib import admin
from myproject.myapp.decorators import superuser_required

class DecoratedURLPattern(RegexURLPattern):
    def resolve(self, *args, **kwargs):
        result = super(DecoratedURLPattern, self).resolve(*args, **kwargs)
        if result:
            result.func = self._decorate_with(result.func)
        return result

class DecoratedRegexURLResolver(RegexURLResolver):
    def resolve(self, *args, **kwargs):
        result = super(DecoratedRegexURLResolver, self).resolve(*args, **kwargs)
        if result:
            result.func = self._decorate_with(result.func)
        return result

def decorated_includes(func, includes, *args, **kwargs):
    urlconf_module, app_name, namespace = includes
    
    for item in urlconf_module:
        if isinstance(item, RegexURLPattern):
            item.__class__ = DecoratedURLPattern
            item._decorate_with = func
            
        elif isinstance(item, RegexURLResolver):
            item.__class__ = DecoratedRegexURLResolver
            item._decorate_with = func

    return urlconf_module, app_name, namespace

# urls.py - usage example with the admin site
adminurls = include(admin.site.urls)

urlpatterns = patterns('',
    # normal views
    (r'^assets/', include('myapp.assets.urls')),

    # all of these views are decoratored
    (r'^admin/', decorated_includes(superuser_required, include(admin.site.urls)) ),
)