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Code Issues 32 Releases Wiki Activity

Fixed #20346 -- Made cache middleware vary on the full URL.

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Previously, only the URL path was included in the cache key.

Thanks jamey for the suggestion.
This commit is contained in:
ijl
2013-12-26 23:14:08 -05:00
committed by Tim Graham
parent 280c1a65cc
commit 71a03e01aa
4 changed files with 92 additions and 19 deletions
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8
docs/topics/cache.txt
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@@ -1046,13 +1046,19 @@ the contents of a Web page depend on a user's language preference, the page is
said to "vary on language."
By default, Django's cache system creates its cache keys using the requested
path and query -- e.g., ``"/stories/2005/?order_by=author"``. This means every
fully-qualified URL -- e.g.,
``"http://www.example.com/stories/2005/?order_by=author"``. This means every
request to that URL will use the same cached version, regardless of user-agent
differences such as cookies or language preferences. However, if this page
produces different content based on some difference in request headers -- such
as a cookie, or a language, or a user-agent -- you'll need to use the ``Vary``
header to tell caching mechanisms that the page output depends on those things.
.. versionchanged:: 1.7
Cache keys use the request's fully-qualified URL rather than path
and query string.
To do this in Django, use the convenient
:func:`django.views.decorators.vary.vary_on_headers` view decorator, like so::