includes/ParserCache.php

   1 <?php
   2
   3 class ParserCache
   4 {
   5         function getKey( &$article, &$user ) {
   6                 global $wgDBname;
   7                 $hash = $user->getPageRenderingHash();
   8                 $pageid = intval( $article->getID() );
   9                 $key = "$wgDBname:pcache:idhash:$pageid-$hash";
  10                 return $key;
  11         }
  12
  13         function get( &$article, &$user ) {
  14                 global $wgMemc;
  15                 $hash = $user->getPageRenderingHash();
  16                 $pageid = intval( $article->getID() );
  17                 $key = $this->getKey( $article, $user );
  18                 $value = $wgMemc->get( $key );
  19                 if ( $value ) {
  20                         # Delete if article has changed since the cache was made
  21                         if ( $value->getTouched() != $article->getTouched() ) {
  22                                 $wgMemc->delete( $key );
  23                                 $value = false;
  24                         }
  25                 } else {
  26                         $value = false;
  27                 }
  28                 return $value;
  29         }
  30
  31         function save( $parserOutput, &$article, &$user ){
  32                 global $wgMemc;
  33                 $key = $this->getKey( $article, $user );
  34                 $parserOutput->setTouched( $article->getTouched() );
  35                 if( $parserOutput->containsOldMagic() ){
  36                         $expire = 3600; # 1 hour
  37                 } else {
  38                         $expire = 7*86400; # 7 days
  39                 }
  40
  41                 $wgMemc->set( $key, $parserOutput, $expire );
  42         }
  43
  44 }
  45
  46
  47 ?>