Merge https://github.com/dzen/django-rest-framework

djangorestframework/tests/views.py

 from django.conf.urls.defaults import patterns, url
+from django.http import HttpResponse
 from django.test import TestCase
 from django.test import Client
 from django import forms
@@ -16,6 +17,13 @@ class MockView(View):
     """This is a basic mock view"""
     pass
 
+
+class MockViewFinal(View):
+    """View with final() override"""
+
+    def final(self, request, response, *args, **kwargs):
+        return HttpResponse('{"test": "passed"}', content_type="application/json")
+
 class ResourceMockView(View):
     """This is a resource-based mock view"""
 
@@ -43,6 +51,7 @@ urlpatterns = patterns('djangorestframework.utils.staticviews',
     url(r'^accounts/login$', 'api_login'),
     url(r'^accounts/logout$', 'api_logout'),
     url(r'^mock/$', MockView.as_view()),
+    url(r'^mock/final/$', MockViewFinal.as_view()),
     url(r'^resourcemock/$', ResourceMockView.as_view()),
     url(r'^model/$', ListOrCreateModelView.as_view(resource=MockResource)),
     url(r'^model/(?P<pk>[^/]+)/$', InstanceModelView.as_view(resource=MockResource)),
@@ -52,6 +61,13 @@ class BaseViewTests(TestCase):
     """Test the base view class of djangorestframework"""
     urls = 'djangorestframework.tests.views'
 
+    def test_view_call_final(self):
+        response = self.client.options('/mock/final/')
+        self.assertEqual(response['Content-Type'].split(';')[0], "application/json")
+        parser = JSONParser(None)
+        (data, files) = parser.parse(StringIO(response.content))
+        self.assertEqual(data['test'], 'passed')
+
     def test_options_method_simple_view(self):
         response = self.client.options('/mock/')
         self._verify_options_response(response,

djangorestframework/views.py

@@ -154,19 +154,8 @@ class View(ResourceMixin, RequestMixin, ResponseMixin, AuthMixin, DjangoView):
         except ErrorResponse, exc:
             response = exc.response
 
-        # Always add these headers.
-        #
-        # TODO - this isn't actually the correct way to set the vary header,
-        # also it's currently sub-optimal for HTTP caching - need to sort that out.
-        response.headers['Allow'] = ', '.join(self.allowed_methods)
-        response.headers['Vary'] = 'Authenticate, Accept'
-
-        # merge with headers possibly set at some point in the view
-        response.headers.update(self.headers)
-
         set_script_prefix(orig_prefix)
-
-        return self.render(response)
+        return self.final(request, response, *args, **kwargs)
 
     def options(self, request, *args, **kwargs):
         response_obj = {
@@ -183,6 +172,19 @@ class View(ResourceMixin, RequestMixin, ResponseMixin, AuthMixin, DjangoView):
             response_obj['fields'] = field_name_types
         return response_obj
 
+    def final(self, request, response, *args, **kargs):
+        """
+        Hook for any code that needs to run after everything else in the view.
+        """
+        # Always add these headers.
+        response.headers['Allow'] = ', '.join(self.allowed_methods)
+        # sample to allow caching using Vary http header
+        response.headers['Vary'] = 'Authenticate, Accept'
+
+        # merge with headers possibly set at some point in the view
+        response.headers.update(self.headers)
+        return self.render(response)
+
 
 class ModelView(View):
     """