maintenance/removeUnusedAccounts.inc

   1 <?php
   2
   3 /**
   4  * Support functions for the removeUnusedAccounts script
   5  *
   6  * @package MediaWiki
   7  * @subpackage Maintenance
   8  * @author Rob Church <robchur@gmail.com>
   9  */
  10
  11 define( 'ACTION_REPORT', 0 );
  12 define( 'ACTION_DELETE', 1 );
  13
  14 # Count the number of edits the specified user has made
  15 function CountEdits( $user_id ) {
  16         # We've *got* to pull this stuff off the master. If the user *has* made an edit, but it hasn't
  17         # been replicated to the slaves yet, we'll end up falsely marking them as inactive. This could
  18         # (and usually would) lead to their deletion.
  19         $dbw =& wfGetDB( DB_MASTER );
  20         $sql = 'SELECT COUNT(rev_id) AS count FROM ' . $dbw->tableName( 'revision' ) . ' WHERE rev_user = ' . $user_id;
  21         $res = $dbw->query( $sql );
  22         $row = $dbw->fetchObject( $res );
  23         return( $row->count );
  24 }
  25
  26 # Return an array containing all valid user IDs
  27 function GetUsers() {
  28         # We're safe enough pulling this off a slave
  29         $dbr =& wfGetDB( DB_SLAVE );
  30         $sql = 'SELECT user_id FROM ' . $dbr->tableName( 'user' );
  31         $res = $dbr->query( $sql );
  32         $users = array();
  33         while( $row = $dbr->fetchObject( $res ) ) {
  34                 $users[] = $row->user_id;
  35         }
  36         return( $users );
  37 }
  38
  39 # Delete one or more users
  40 function DeleteUsers( $users ) {
  41         # Need a master, obviously
  42         $dbw =& wfGetDB( DB_MASTER );
  43         # We'll do it all in one go, for speed
  44         $dbw->begin();
  45         $table = $dbw->tableName( 'user' );
  46         foreach( $users as $user ) {
  47                 $dbw->query( 'DELETE FROM ' . $table . ' WHERE user_id = ' . $user . ' LIMIT 1' );
  48         }
  49         $dbw->commit();
  50 }
  51
  52 ?>