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Fixed #16967 -- Made sure CachedStaticFilesStorage repopulates its cache if there was a miss (for example if the cache server went down). 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17067 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Jannis Leidel 2011-11-02 17:45:32 +00:00
parent 44a4037466
commit 0e2c543979
2 changed files with 24 additions and 5 deletions
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13
django/contrib/staticfiles/storage.py
View File

@ -90,11 +90,14 @@ class CachedFilesMixin(object):
Returns the real URL in DEBUG mode.
"""
if settings.DEBUG and not force:
return super(CachedFilesMixin, self).url(name)
cache_key = self.cache_key(name)
hashed_name = self.cache.get(cache_key)
if hashed_name is None:
hashed_name = self.hashed_name(name)
hashed_name = name
else:
cache_key = self.cache_key(name)
hashed_name = self.cache.get(cache_key)
if hashed_name is None:
hashed_name = self.hashed_name(name)
# set the cache if there was a miss (e.g. if cache server goes down)
self.cache.set(cache_key, hashed_name)
return super(CachedFilesMixin, self).url(hashed_name)
def url_converter(self, name):

16
tests/regressiontests/staticfiles_tests/tests.py
View File

@ -352,6 +352,22 @@ class TestCollectionCachedStorage(BaseCollectionTestCase,
with storage.staticfiles_storage.open(relpath) as relfile:
self.assertTrue("https://" in relfile.read())
def test_cache_invalidation(self):
name = "cached/styles.css"
hashed_name = "cached/styles.93b1147e8552.css"
# check if the cache is filled correctly as expected
cache_key = storage.staticfiles_storage.cache_key(name)
cached_name = storage.staticfiles_storage.cache.get(cache_key)
self.assertEqual(self.cached_file_path(name), cached_name)
# clearing the cache to make sure we re-set it correctly in the url method
storage.staticfiles_storage.cache.clear()
cached_name = storage.staticfiles_storage.cache.get(cache_key)
self.assertEqual(cached_name, None)
self.assertEqual(self.cached_file_path(name), hashed_name)
cached_name = storage.staticfiles_storage.cache.get(cache_key)
self.assertEqual(cached_name, hashed_name)
# we set DEBUG to False here since the template tag wouldn't work otherwise
TestCollectionCachedStorage = override_settings(**dict(TEST_SETTINGS,
STATICFILES_STORAGE='django.contrib.staticfiles.storage.CachedStaticFilesStorage',