Fixed #23323 -- Made django.utils.translation.override usable as a de…

…corator.

django/utils/translation/__init__.py

@@ -3,6 +3,7 @@
 """
 from __future__ import unicode_literals
 import re
+from django.utils.decorators import ContextDecorator
 from django.utils.encoding import force_text
 from django.utils.functional import lazy
 from django.utils import six
@@ -149,7 +150,7 @@ def deactivate():
     return _trans.deactivate()
 
 
-class override(object):
+class override(ContextDecorator):
     def __init__(self, language, deactivate=False):
         self.language = language
         self.deactivate = deactivate

docs/releases/1.8.txt

@@ -129,6 +129,11 @@ Minor features
 
 * ...
 
+:mod:``django.utils.translation``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* ``django.utils.translation.override`` is now usable as a function decorator.
+
 Cache
 ^^^^^
 

tests/i18n/tests.py

@@ -73,6 +73,25 @@ def test_override(self):
         finally:
             deactivate()
 
+    def test_override_decorator(self):
+        activate('de')
+
+        @translation.override('pl')
+        def func_pl():
+            self.assertEqual(get_language(), 'pl')
+
+        @translation.override(None)
+        def func_none():
+            self.assertEqual(get_language(), settings.LANGUAGE_CODE)
+
+        try:
+            func_pl()
+            self.assertEqual(get_language(), 'de')
+            func_none()
+            self.assertEqual(get_language(), 'de')
+        finally:
+            deactivate()
+
     def test_lazy_objects(self):
         """
         Format string interpolation should work with *_lazy objects.