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Corrected an inconsistency in the documentation regarding the way to specify the locmem and dummy cache backend. Thanks to Jens Diemer for the report. 

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.1.X@11750 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Russell Keith-Magee 2009-11-19 11:20:06 +00:00
parent 47f1330be1
commit 55b6f3cf21
1 changed files with 10 additions and 10 deletions
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docs/topics/cache.txt
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@ -179,9 +179,9 @@ Local-memory caching
If you want the speed advantages of in-memory caching but don't have the If you want the speed advantages of in-memory caching but don't have the
capability of running Memcached, consider the local-memory cache backend. This capability of running Memcached, consider the local-memory cache backend. This
cache is multi-process and thread-safe. To use it, set ``CACHE_BACKEND`` to cache is multi-process and thread-safe. To use it, set ``CACHE_BACKEND`` to
``"locmem:///"``. For example:: ``"locmem://"``. For example::
CACHE_BACKEND = 'locmem:///' CACHE_BACKEND = 'locmem://'
Note that each process will have its own private cache instance, which means no Note that each process will have its own private cache instance, which means no
cross-process caching is possible. This obviously also means the local memory cross-process caching is possible. This obviously also means the local memory
@ -199,7 +199,7 @@ various places but a development/test environment where you don't want to cache
and don't want to have to change your code to special-case the latter. To and don't want to have to change your code to special-case the latter. To
activate dummy caching, set ``CACHE_BACKEND`` like so:: activate dummy caching, set ``CACHE_BACKEND`` like so::
CACHE_BACKEND = 'dummy:///' CACHE_BACKEND = 'dummy://'
Using a custom cache backend Using a custom cache backend
---------------------------- ----------------------------
@ -249,7 +249,7 @@ In this example, ``timeout`` is set to ``60``::
In this example, ``timeout`` is ``30`` and ``max_entries`` is ``400``:: In this example, ``timeout`` is ``30`` and ``max_entries`` is ``400``::
CACHE_BACKEND = "locmem:///?timeout=30&max_entries=400" CACHE_BACKEND = "locmem://?timeout=30&max_entries=400"
Invalid arguments are silently ignored, as are invalid values of known Invalid arguments are silently ignored, as are invalid values of known
arguments. arguments.
@ -440,11 +440,11 @@ The low-level cache API
Sometimes, caching an entire rendered page doesn't gain you very much and is, Sometimes, caching an entire rendered page doesn't gain you very much and is,
in fact, inconvenient overkill. in fact, inconvenient overkill.
Perhaps, for instance, your site includes a view whose results depend on Perhaps, for instance, your site includes a view whose results depend on
several expensive queries, the results of which change at different intervals. several expensive queries, the results of which change at different intervals.
In this case, it would not be ideal to use the full-page caching that the In this case, it would not be ideal to use the full-page caching that the
per-site or per-view cache strategies offer, because you wouldn't want to per-site or per-view cache strategies offer, because you wouldn't want to
cache the entire result (since some of the data changes often), but you'd still cache the entire result (since some of the data changes often), but you'd still
want to cache the results that rarely change. want to cache the results that rarely change.
For cases like this, Django exposes a simple, low-level cache API. You can use For cases like this, Django exposes a simple, low-level cache API. You can use
@ -752,10 +752,10 @@ Django comes with a few other pieces of middleware that can help optimize your
apps' performance: apps' performance:
* ``django.middleware.http.ConditionalGetMiddleware`` adds support for * ``django.middleware.http.ConditionalGetMiddleware`` adds support for
modern browsers to conditionally GET responses based on the ``ETag`` modern browsers to conditionally GET responses based on the ``ETag``
and ``Last-Modified`` headers. and ``Last-Modified`` headers.
* ``django.middleware.gzip.GZipMiddleware`` compresses responses for all * ``django.middleware.gzip.GZipMiddleware`` compresses responses for all
moderns browsers, saving bandwidth and transfer time. moderns browsers, saving bandwidth and transfer time.
Order of MIDDLEWARE_CLASSES Order of MIDDLEWARE_CLASSES