Fixed #13093 -- Updated some decorators and the decorator_from_middleware function to allow callable classes to be decorated. Thanks to Brian Neal for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12762 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/utils/decorators.py

@@ -11,3 +11,9 @@ class DecoratorFromMiddlewareTests(TestCase):
         Test a middleware that implements process_view.
         """
         self.client.get('/utils/xview/')
+
+    def test_callable_process_view_middleware(self):
+        """
+        Test a middleware that implements process_view, operating on a callable class.
+        """
+        self.client.get('/utils/class_xview/')

tests/regressiontests/utils/urls.py

@@ -4,4 +4,5 @@ import views
 
 urlpatterns = patterns('',
     (r'^xview/$', views.xview),
+    (r'^class_xview/$', views.class_xview),
 )

tests/regressiontests/utils/views.py

@@ -8,3 +8,10 @@ xview_dec = decorator_from_middleware(XViewMiddleware)
 def xview(request):
     return HttpResponse()
 xview = xview_dec(xview)
+
+
+class ClassXView(object):
+    def __call__(self, request):
+        return HttpResponse()
+
+class_xview = xview_dec(ClassXView())