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https://github.com/YunoHost-Apps/mediawiki_ynh.git
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78 lines
2.3 KiB
PHP
78 lines
2.3 KiB
PHP
<?php
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/**
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* Support functions for cleaning up redundant text records
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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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* @author Rob Church <robchur@gmail.com>
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*/
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function PurgeRedundantText( $delete = false ) {
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# Data should come off the master, wrapped in a transaction
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$dbw = wfGetDB( DB_MASTER );
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$dbw->begin( __METHOD__ );
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$tbl_arc = $dbw->tableName( 'archive' );
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$tbl_rev = $dbw->tableName( 'revision' );
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$tbl_txt = $dbw->tableName( 'text' );
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# Get "active" text records from the revisions table
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echo "Searching for active text records in revisions table...";
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$res = $dbw->query( "SELECT DISTINCT rev_text_id FROM $tbl_rev" );
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foreach ( $res as $row ) {
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$cur[] = $row->rev_text_id;
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}
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echo "done.\n";
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# Get "active" text records from the archive table
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echo "Searching for active text records in archive table...";
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$res = $dbw->query( "SELECT DISTINCT ar_text_id FROM $tbl_arc" );
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$cur = array();
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foreach ( $res as $row ) {
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$cur[] = $row->ar_text_id;
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}
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echo "done.\n";
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# Get the IDs of all text records not in these sets
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echo "Searching for inactive text records...";
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$set = implode( ', ', $cur );
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$res = $dbw->query( "SELECT old_id FROM $tbl_txt WHERE old_id NOT IN ( $set )" );
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$old = array();
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foreach ( $res as $row ) {
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$old[] = $row->old_id;
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}
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echo "done.\n";
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# Inform the user of what we're going to do
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$count = count( $old );
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echo "$count inactive items found.\n";
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# Delete as appropriate
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if ( $delete && $count ) {
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echo "Deleting...";
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$set = implode( ', ', $old );
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$dbw->query( "DELETE FROM $tbl_txt WHERE old_id IN ( $set )" );
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echo "done.\n";
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}
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# Done
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$dbw->commit( __METHOD__ );
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}
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