Fixes #32. @cache_response doesn't seem to be working with DRF 2.4

docs/index.md

@@ -2063,6 +2063,8 @@ django >= 1.7
 * [Documented ETag usage with GZipMiddleware](#gzipped-etags)
 * Fixed `ListSqlQueryKeyBit` and `RetrieveSqlQueryKeyBit` [problems](https://github.com/chibisov/drf-extensions/issues/28)
 with `EmptyResultSet`.
+* Fixed [cache response](#cache-response) compatibility [issue](https://github.com/chibisov/drf-extensions/issues/32)
+with DRF 2.4.x
 
 #### 0.2.5
 

rest_framework_extensions/cache/decorators.py

@@ -54,6 +54,8 @@ def process_cache_response(self,
             response = view_instance.finalize_response(request, response, *args, **kwargs)
             response.render()  # should be rendered, before picklining while storing to cache
             self.cache.set(key, response, self.timeout)
+        if not hasattr(response, '_closable_objects'):
+            response._closable_objects = []
         return response
 
     def calculate_key(self,

tests_app/tests/functional/cache/__init__.py

@@ -0,0 +1 @@
+

tests_app/tests/functional/cache/decorators/__init__.py

@@ -0,0 +1 @@
+

tests_app/tests/functional/cache/decorators/tests.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+import datetime
+
+from django.test import TestCase
+
+from .urls import urlpatterns
+
+
+class TestCacheResponseFunctionally(TestCase):
+    urls = urlpatterns
+
+    def test_should_return_response(self):
+        resp = self.client.get('/hello/')
+        self.assertEqual(resp.content, '"Hello world"')
+
+    def test_should_return_same_response_if_cached(self):
+        resp_1 = self.client.get('/hello/')
+        resp_2 = self.client.get('/hello/')
+        self.assertEqual(resp_1.content, resp_2.content)

tests_app/tests/functional/cache/decorators/urls.py

@@ -0,0 +1,9 @@
+# -*- coding: utf-8 -*-
+from django.conf.urls import url
+
+from .views import HelloView
+
+
+urlpatterns = [
+    url(r'^hello/$', HelloView.as_view(), name='hello'),
+]

tests_app/tests/functional/cache/decorators/views.py

@@ -0,0 +1,11 @@
+# -*- coding: utf-8 -*-
+from rest_framework import views
+from rest_framework.response import Response
+
+from rest_framework_extensions.cache.decorators import cache_response
+
+
+class HelloView(views.APIView):
+    @cache_response()
+    def get(self, request, *args, **kwargs):
+        return Response('Hello world')

tox.ini

@@ -10,6 +10,9 @@ envlist =
     py27-drf2.3.12,
     py27-drf2.3.13,
     py27-drf2.3.14,
+    py27-drf2.4.0,
+    py27-drf2.4.1,
+    py27-drf2.4.2,
     py3,
     django1.5,
     django1.6,