55 lines
1.3 KiB
PHP
55 lines
1.3 KiB
PHP
<?php
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class ParserCache
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{
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function getKey( &$article, &$user ) {
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global $wgDBname;
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$hash = $user->getPageRenderingHash();
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$pageid = intval( $article->getID() );
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$key = "$wgDBname:pcache:idhash:$pageid-$hash";
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return $key;
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}
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function get( &$article, &$user ) {
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global $wgMemc, $wgCacheEpoch;
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$fname = "ParserCache::get";
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wfProfileIn( $fname );
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$hash = $user->getPageRenderingHash();
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$pageid = intval( $article->getID() );
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$key = $this->getKey( $article, $user );
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$value = $wgMemc->get( $key );
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if ( $value ) {
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# Delete if article has changed since the cache was made
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$touched = $article->getTouched();
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if ( $value->getCacheTime() <= $touched || $value->getCacheTime < $wgCacheEpoch ) {
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$wgMemc->delete( $key );
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$value = false;
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}
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} else {
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$value = false;
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}
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wfProfileOut( $fname );
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return $value;
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}
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function save( $parserOutput, &$article, &$user ){
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global $wgMemc;
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$key = $this->getKey( $article, $user );
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$now = wfTimestampNow();
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$parserOutput->setCacheTime( $now );
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$parserOutput->mText .= "\n<!-- Saved in parser cache with key $key and timestamp $now -->\n";
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if( $parserOutput->containsOldMagic() ){
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$expire = 3600; # 1 hour
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} else {
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$expire = 86400; # 1 day
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}
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$wgMemc->set( $key, $parserOutput, $expire );
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}
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}
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?>
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