[1.6.x] Fixed #24035 -- Clarified docs on CACHE_MIDDLEWARE_KEY_PREFIX vs KEY_PREFIX

Default: ``default``

The cache connection to use for the cache middleware.

The cache connection to use for the :ref:`cache middleware

<the-per-site-cache>`.

.. setting:: CACHE_MIDDLEWARE_ANONYMOUS_ONLY

Default: ``''`` (Empty string)

The cache key prefix that the cache middleware should use.

A string which will be prefixed to the cache keys generated by the :ref:`cache

middleware <the-per-site-cache>`. This prefix is combined with the

:setting:`KEY_PREFIX <CACHES-KEY_PREFIX>` setting; it does not replace it.

See :doc:`/topics/cache`.

Default: ``600``

The default number of seconds to cache a page when the caching middleware or

``cache_page()`` decorator is used.

The default number of seconds to cache a page for the :ref:`cache middleware

<the-per-site-cache>`.

See :doc:`/topics/cache`.

Invalid arguments are silently ignored, as are invalid values of known

arguments.

.. _the-per-site-cache:

The per-site cache

==================

    def my_view(request):

        ...

The two settings can also be combined. If you specify a ``cache`` *and*

a ``key_prefix``, you will get all the settings of the requested cache

alias, but with the key_prefix overridden.

The ``key_prefix and ``cache`` arguments may be specified together. The

``key_prefix`` argument and the :setting:`KEY_PREFIX <CACHES-KEY_PREFIX>`

specified under :setting:`CACHES` will be concatenated.

Specifying per-view cache in the URLconf

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