<?php
/**
+ * Change the prefix of database tables.
* Run this script to after changing $wgDBprefix on a wiki.
* The wiki will have to get downtime to do this correctly.
*
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
+ * @file
* @ingroup Maintenance
*/
-
-require_once( dirname( __FILE__ ) . '/Maintenance.php' );
+require_once __DIR__ . '/Maintenance.php';
+
+/**
+ * Maintenance script that changes the prefix of database tables.
+ *
+ * @ingroup Maintenance
+ */
class RenameDbPrefix extends Maintenance {
public function __construct() {
parent::__construct();
}
public function execute() {
+ global $wgDBname;
+
// Allow for no old prefix
if ( $this->getOption( 'old', 0 ) === '0' ) {
$old = '';
preg_match( '/^[a-zA-Z]+_$/', $this->getOption( 'new' ), $m );
$new = isset( $m[0] ) ? $m[0] : false;
}
-
+
if ( $old === false || $new === false ) {
$this->error( "Invalid prefix!", true );
}
if ( $old === $new ) {
$this->output( "Same prefix. Nothing to rename!\n", true );
}
-
+
$this->output( "Renaming DB prefix for tables of $wgDBname from '$old' to '$new'\n" );
$count = 0;
-
- $dbw = wfGetDB( DB_MASTER );
- $res = $dbw->query( "SHOW TABLES LIKE '" . $dbw->escapeLike( $old ) . "%'" );
+
+ $dbw = $this->getDB( DB_MASTER );
+ $res = $dbw->query( "SHOW TABLES " . $dbw->buildLike( $old, $dbw->anyString() ) );
foreach ( $res as $row ) {
// XXX: odd syntax. MySQL outputs an oddly cased "Tables of X"
// sort of message. Best not to try $row->x stuff...
$fields = get_object_vars( $row );
// Silly for loop over one field...
- foreach ( $fields as $resName => $table ) {
+ foreach ( $fields as $table ) {
// $old should be regexp safe ([a-zA-Z_])
$newTable = preg_replace( '/^' . $old . '/', $new, $table );
$this->output( "Renaming table $table to $newTable\n" );
}
$maintClass = "RenameDbPrefix";
-require_once( DO_MAINTENANCE );
\ No newline at end of file
+require_once RUN_MAINTENANCE_IF_MAIN;