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Дата индексирования: Mon Apr 11 23:45:57 2016
Кодировка: koi8-r
PerlDoc < System < Foswiki

internal package Foswiki::Request::Cache

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internal package Foswiki::Request::Cache

Class that implements a disk cache of Foswiki::Request objects.

There are a couple of cases where we need to cache request objects; over a 403 redirect (which is a GET and therefore has limited parameter capacity) and over a confirmation, such as a strikeone validation. In these cases we need to cache not just the request parameters, but also any uploads associated with the request. We also need the means to keep the cache tidy.

Note that the cache records the method() and path_info() of the original request and restores them on reload.

ClassMethod new()

Construct a new request cache.

ObjectMethod save( $request ) → $uid

$request is a Foswiki::Request object to be cached; the cache is identifiable by the unique $uid, which can be stored and passed to $cache->load(). A cache file will be kept until it is loaded (which destroys the cache) or it is cleaned up.

ObjectMethod load( $uid, $request )

$uid is the id returned by save() which identifies the request cache. $request must be a Foswiki::Request object that will be popluated with the data from the cache. Loading a cache will destroy the cache on disk.

StaticMethod cleanup($timeout)

Clean up the cache by removing everything older than $timeout seconds. If $timeout is 0 or undefined, it defaults to {Sessions}{ExpireAfter}.

Topic revision: r1 - 19 Apr 2011, ProjectContributor
 
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