mirror of
https://github.com/YunoHost-Apps/mediawiki_ynh.git
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113 lines
3.3 KiB
PHP
113 lines
3.3 KiB
PHP
<?php
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/**
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* Cleans up old database tables, dropping old indexes and fields.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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require_once __DIR__ . '/Maintenance.php';
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/**
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* Maintenance script to cleans up old database tables, dropping old indexes
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* and fields.
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*
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* @ingroup Maintenance
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*/
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class CleanupAncientTables extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->mDescription = "Cleanup ancient tables and indexes";
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$this->addOption( 'force', 'Actually run this script' );
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}
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public function execute() {
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if ( !$this->hasOption( 'force' ) ) {
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$this->error( "This maintenance script will remove old columns and indexes.\n"
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. "It is recommended to backup your database first, and ensure all your data has been migrated to newer tables\n"
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. "If you want to continue, run this script again with the --force \n"
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);
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}
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$db = wfGetDB( DB_MASTER );
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$ancientTables = array(
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'blobs', // 1.4
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'brokenlinks', // 1.4
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'cur', // 1.4
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'ip_blocks_old', // Temporary in 1.6
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'links', // 1.4
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'linkscc', // 1.4
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// 'math', // 1.18, but don't want to drop if math extension is enabled...
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'old', // 1.4
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'oldwatchlist', // pre 1.1?
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'trackback', // 1.19
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'user_rights', // 1.5
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'validate', // 1.6
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);
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foreach ( $ancientTables as $table ) {
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if ( $db->tableExists( $table, __METHOD__ ) ) {
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$this->output( "Dropping table $table..." );
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$db->dropTable( $table, __METHOD__ );
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$this->output( "done.\n" );
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}
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}
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$this->output( "Cleaning up text table\n" );
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$oldIndexes = array(
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'old_namespace',
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'old_timestamp',
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'name_title_timestamp',
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'user_timestamp',
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'usertext_timestamp',
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);
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foreach ( $oldIndexes as $index ) {
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if ( $db->indexExists( 'text', $index, __METHOD__ ) ) {
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$this->output( "Dropping index $index from the text table..." );
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$db->query( "DROP INDEX " . $db->addIdentifierQuotes( $index )
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. " ON " . $db->tableName( 'text' ) );
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$this->output( "done.\n" );
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}
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}
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$oldFields = array(
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'old_namespace',
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'old_title',
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'old_comment',
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'old_user',
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'old_user_text',
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'old_timestamp',
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'old_minor_edit',
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'inverse_timestamp',
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);
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foreach ( $oldFields as $field ) {
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if ( $db->fieldExists( 'text', $field, __METHOD__ ) ) {
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$this->output( "Dropping the $field field from the text table..." );
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$db->query( "ALTER TABLE " . $db->tableName( 'text' )
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. " DROP COLUMN " . $db->addIdentifierQuotes( $field ) );
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$this->output( "done.\n" );
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}
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}
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$this->output( "Done!\n" );
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}
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}
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$maintClass = "CleanupAncientTables";
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require_once RUN_MAINTENANCE_IF_MAIN;
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