Author: lukeplant
Date: 2009-09-23 18:47:53 -0500 (Wed, 23 Sep 2009)
New Revision: 11593
Modified:
django/trunk/django/views/decorators/cache.py
Log:
Improved error messages when people use cache_page in undocumented and now
unsupported ways.
Modified: django/trunk/django/views/decorators/cache.py
===================================================================
--- django/trunk/django/views/decorators/cache.py 2009-09-23 23:41:35 UTC
(rev 11592)
+++ django/trunk/django/views/decorators/cache.py 2009-09-23 23:47:53 UTC
(rev 11593)
@@ -20,15 +20,20 @@
from django.utils.cache import patch_cache_control, add_never_cache_headers
from django.middleware.cache import CacheMiddleware
-def cache_page(*args, **kwargs):
+def cache_page(*args):
# We need backwards compatibility with code which spells it this way:
# def my_view(): pass
# my_view = cache_page(123, my_view)
# and this way:
# my_view = cache_page(123)(my_view)
+
+ # We also add some asserts to give better error messages in case people are
+ # using other ways to call cache_page that no longer work.
timeout = args[0]
if len(args) > 1:
+ assert len(args) == 2, "cache_page accepts at most 2 arguments"
fn = args[1]
+ assert callable(fn), "cache_page is expecting 2nd argument to be a
callable"
return
decorator_from_middleware_with_args(CacheMiddleware)(timeout)(fn)
else:
return decorator_from_middleware_with_args(CacheMiddleware)(timeout)
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