On Wed, Jun 8, 2011 at 1:50 PM, Robert Cummings <[email protected]>wrote:
> I've looked around for methods to manipulate the cache duration for a
> given article. There are methods to facilitate the expiration of an
> article, and there are extensions that can disable caching for articles
> via convenient management interfaces. What seems to be lacking though,
> is a way to expire the article after some duration. For instance, I'm
> working with embedded RSS feeds...
>
[snip]
It looks like MediaWiki 1.17 and later support this already, by calling
updateCacheExpiry() on the parser cache output object.
The RSS extension uses this in its rendering hook:
if ( $wgRSSCacheCompare ) {
$timeout = $wgRSSCacheCompare;
} else {
$timeout = $wgRSSCacheAge;
}
$parser->getOutput()->updateCacheExpiry( $timeout );
In theory at least this should propagate the shorter expiry time out to both
the parser cache entry and the actual output page's HTTP headers, though I
haven't tested to double-check myself yet.
-- brion
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