maintenance/fixDefaultJsonContentPages.php

   1 <?php
   2 /**
   3  * Fix instances of pre-existing JSON pages
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Maintenance
  22  */
  23
  24 require_once __DIR__ . '/Maintenance.php';
  25
  26 /**
  27  * Usage:
  28  *  fixDefaultJsonContentPages.php
  29  *
  30  * It is automatically run by update.php
  31  */
  32 class FixDefaultJsonContentPages extends LoggedUpdateMaintenance {
  33         public function __construct() {
  34                 parent::__construct();
  35                 $this->mDescription =
  36                                 'Fix instances of JSON pages prior to them being the ContentHandler default';
  37                 $this->setBatchSize( 100 );
  38         }
  39
  40         protected function getUpdateKey() {
  41                 return __CLASS__;
  42         }
  43
  44         protected function doDBUpdates() {
  45                 if ( !$this->getConfig()->get( 'ContentHandlerUseDB' ) ) {
  46                         $this->output( "\$wgContentHandlerUseDB is not enabled, nothing to do.\n" );
  47                         return true;
  48                 }
  49
  50                 $dbr = $this->getDB( DB_SLAVE );
  51                 $namespaces = array(
  52                         NS_MEDIAWIKI => $dbr->buildLike( $dbr->anyString(), '.json' ),
  53                         NS_USER => $dbr->buildLike( $dbr->anyString(), '/', $dbr->anyString(), '.json' ),
  54                 );
  55                 foreach ( $namespaces as $ns => $like ) {
  56                         $lastPage = 0;
  57                         do {
  58                                 $rows = $dbr->select(
  59                                                 'page',
  60                                                 array( 'page_id', 'page_title', 'page_namespace', 'page_content_model' ),
  61                                                 array(
  62                                                                 'page_namespace' => $ns,
  63                                                                 'page_title ' . $like,
  64                                                                 'page_id > ' . $dbr->addQuotes( $lastPage )
  65                                                 ),
  66                                                 __METHOD__,
  67                                                 array( 'ORDER BY' => 'page_id', 'LIMIT' => $this->mBatchSize )
  68                                 );
  69                                 foreach ( $rows as $row ) {
  70                                         $this->handleRow( $row );
  71                                 }
  72                         } while ( $rows->numRows() >= $this->mBatchSize );
  73                 }
  74
  75                 return true;
  76         }
  77
  78         protected function handleRow( stdClass $row ) {
  79                 $title = Title::makeTitle( $row->page_namespace, $row->page_title );
  80                 $this->output( "Processing {$title} ({$row->page_id})...\n" );
  81                 $rev = Revision::newFromTitle( $title );
  82                 $content = $rev->getContent( Revision::RAW );
  83                 $dbw = $this->getDB( DB_MASTER );
  84                 if ( $content instanceof JsonContent ) {
  85                         if ( $content->isValid() ) {
  86                                 // Yay, actually JSON. We need to just change the
  87                                 // page_content_model because revision will automatically
  88                                 // use the default, which is *now* JSON.
  89                                 $this->output( "Setting page_content_model to json..." );
  90                                 $dbw->update(
  91                                         'page',
  92                                         array( 'page_content_model' => CONTENT_MODEL_JSON ),
  93                                         array( 'page_id' => $row->page_id ),
  94                                         __METHOD__
  95                                 );
  96                                 $this->output( "done.\n" );
  97                                 wfWaitForSlaves();
  98                         } else {
  99                                 // Not JSON...force it to wikitext. We need to update the
 100                                 // revision table so that these revisions are always processed
 101                                 // as wikitext in the future. page_content_model is already
 102                                 // set to "wikitext".
 103                                 $this->output( "Setting rev_content_model to wikitext..." );
 104                                 // Grab all the ids for batching
 105                                 $ids = $dbw->selectFieldValues(
 106                                         'revision',
 107                                         'rev_id',
 108                                         array( 'rev_page' => $row->page_id ),
 109                                         __METHOD__
 110                                 );
 111                                 foreach ( array_chunk( $ids, 50 ) as $chunk ) {
 112                                         $dbw->update(
 113                                                 'revision',
 114                                                 array( 'rev_content_model' => CONTENT_MODEL_WIKITEXT ),
 115                                                 array( 'rev_page' => $row->page_id, 'rev_id' => $chunk )
 116                                         );
 117                                         wfWaitForSlaves();
 118                                 }
 119                                 $this->output( "done.\n" );
 120                         }
 121                 } else {
 122                         $this->output( "not a JSON page? Skipping\n" );
 123                 }
 124         }
 125 }
 126
 127 $maintClass = 'FixDefaultJsonContentPages';
 128 require_once RUN_MAINTENANCE_IF_MAIN;