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<?php
/**
* Upgrade script to populate the rc_source field
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance
*/
require_once __DIR__ . '/Maintenance.php';
/**
* Maintenance script to populate the rc_source field.
*
* @ingroup Maintenance
* @since 1.22
*/
class PopulateRecentChangesSource extends LoggedUpdateMaintenance {
public function __construct() {
parent::__construct();
$this->mDescription =
"Populates rc_source field of the recentchanges table with the data in rc_type.";
$this->setBatchSize( 100 );
}
protected function doDBUpdates() {
$dbw = $this->getDB( DB_MASTER );
if ( !$dbw->fieldExists( 'recentchanges', 'rc_source' ) ) {
$this->error( 'rc_source field in recentchanges table does not exist.' );
}
$start = $dbw->selectField( 'recentchanges', 'MIN(rc_id)', false, __METHOD__ );
if ( !$start ) {
$this->output( "Nothing to do.\n" );
return true;
}
$end = $dbw->selectField( 'recentchanges', 'MAX(rc_id)', false, __METHOD__ );
$end += $this->mBatchSize - 1;
$blockStart = $start;
$blockEnd = $start + $this->mBatchSize - 1;
$updatedValues = $this->buildUpdateCondition( $dbw );
while ( $blockEnd <= $end ) {
$cond = "rc_id BETWEEN $blockStart AND $blockEnd";
$dbw->update(
'recentchanges',
array( $updatedValues ),
array(
"rc_source = ''",
"rc_id BETWEEN $blockStart AND $blockEnd"
),
__METHOD__
);
$this->output( "." );
wfWaitForSlaves();
$blockStart += $this->mBatchSize;
$blockEnd += $this->mBatchSize;
}
$this->output( "\nDone.\n" );
}
protected function getUpdateKey() {
return __CLASS__;
}
protected function buildUpdateCondition( DatabaseBase $dbw ) {
$rcNew = $dbw->addQuotes( RC_NEW );
$rcSrcNew = $dbw->addQuotes( RecentChange::SRC_NEW );
$rcEdit = $dbw->addQuotes( RC_EDIT );
$rcSrcEdit = $dbw->addQuotes( RecentChange::SRC_EDIT );
$rcLog = $dbw->addQuotes( RC_LOG );
$rcSrcLog = $dbw->addQuotes( RecentChange::SRC_LOG );
$rcExternal = $dbw->addQuotes( RC_EXTERNAL );
$rcSrcExternal = $dbw->addQuotes( RecentChange::SRC_EXTERNAL );
return "rc_source = CASE
WHEN rc_type = $rcNew THEN $rcSrcNew
WHEN rc_type = $rcEdit THEN $rcSrcEdit
WHEN rc_type = $rcLog THEN $rcSrcLog
WHEN rc_type = $rcExternal THEN $rcSrcExternal
ELSE ''
END";
}
}
$maintClass = "PopulateRecentChangesSource";
require_once RUN_MAINTENANCE_IF_MAIN;
|
