maintenance/archives/rebuildRecentchanges.inc

   1 <?php
   2 /**
   3  * Rebuild recent changes table
   4  *
   5  * @deprecated
   6  * @package MediaWiki
   7  * @subpackage MaintenanceArchive
   8  */
   9
  10 /** */
  11 function rebuildRecentChangesTable()
  12 {
  13         $sql = "DROP TABLE IF EXISTS recentchanges";
  14         wfQuery( $sql );
  15
  16         $sql = "CREATE TABLE recentchanges (
  17   rc_timestamp varchar(14) binary NOT NULL default '',
  18   rc_cur_time varchar(14) binary NOT NULL default '',
  19   rc_user int(10) unsigned NOT NULL default '0',
  20   rc_user_text varchar(255) binary NOT NULL default '',
  21   rc_namespace tinyint(3) unsigned NOT NULL default '0',
  22   rc_title varchar(255) binary NOT NULL default '',
  23   rc_comment varchar(255) binary NOT NULL default '',
  24   rc_minor tinyint(3) unsigned NOT NULL default '0',
  25   rc_new tinyint(3) unsigned NOT NULL default '0',
  26   rc_cur_id int(10) unsigned NOT NULL default '0',
  27   rc_this_oldid int(10) unsigned NOT NULL default '0',
  28   rc_last_oldid int(10) unsigned NOT NULL default '0',
  29   INDEX rc_cur_id (rc_cur_id),
  30   INDEX rc_cur_time (rc_cur_time),
  31   INDEX rc_timestamp (rc_timestamp),
  32   INDEX rc_namespace (rc_namespace),
  33   INDEX rc_title (rc_title)
  34 ) TYPE=MyISAM PACK_KEYS=1;";
  35         wfQuery( $sql );
  36
  37         print( "Loading from CUR table...\n" );
  38
  39         $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
  40           "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
  41           "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT cur_timestamp," .
  42           "cur_timestamp,cur_user,cur_user_text,cur_namespace,cur_title," .
  43           "cur_comment,cur_minor_edit,cur_is_new,cur_id,0,0 FROM cur " .
  44           "ORDER BY cur_timestamp DESC LIMIT 5000";
  45         wfQuery( $sql );
  46
  47         print( "Loading from OLD table...\n" );
  48
  49         $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
  50       "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
  51       "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT old_timestamp,''," .
  52           "old_user,old_user_text,old_namespace,old_title,old_comment," .
  53           "old_minor_edit,0,0,old_id,0 FROM old ORDER BY old_timestamp " .
  54           "DESC LIMIT 5000";
  55         wfQuery( $sql );
  56
  57         $sql = "SELECT rc_timestamp FROM recentchanges " .
  58           "ORDER BY rc_timestamp DESC LIMIT 5000,1";
  59         $res = wfQuery( $sql );
  60         $obj = wfFetchObject( $res );
  61         $ts = $obj->rc_timestamp;
  62
  63         $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$ts}'";
  64         wfQuery( $sql );
  65
  66         rebuildRecentChangesTablePass2();
  67 }
  68
  69 function rebuildRecentChangesTablePass2()
  70 {
  71         $ns = $id = $count = 0;
  72         $title = $ct =  "";
  73
  74         print( "Updating links...\n" );
  75
  76         $sql = "SELECT rc_namespace,rc_title,rc_timestamp FROM recentchanges " .
  77           "ORDER BY rc_namespace,rc_title,rc_timestamp DESC";
  78         $res = wfQuery( $sql );
  79
  80         while ( $obj = wfFetchObject( $res ) ) {
  81                 if ( ! ( $ns == $obj->rc_namespace &&
  82                            0 == strcmp( $title, wfStrencode( $obj->rc_title ) ) ) ) {
  83
  84                         $ns = $obj->rc_namespace;
  85                         $title = wfStrencode( $obj->rc_title );
  86
  87                         $sql = "SELECT cur_id,cur_timestamp FROM cur WHERE " .
  88                           "cur_namespace={$ns} AND cur_title='{$title}'";
  89                         $res2 = wfQuery( $sql );
  90                         $obj2 = wfFetchObject( $res2 );
  91
  92                         $id = $obj2->cur_id;
  93                         $ct = $obj2->cur_timestamp;
  94                 }
  95                 $sql = "SELECT old_id FROM old WHERE old_namespace={$ns} " .
  96                   "AND old_title='{$title}' AND old_timestamp < '" .
  97                   "{$obj->rc_timestamp}' ORDER BY old_timestamp DESC LIMIT 1";
  98                 $res2 = wfQuery( $sql );
  99
 100                 if ( 0 != wfNumRows( $res2 ) ) {
 101                         $obj2 = wfFetchObject( $res2 );
 102
 103                         $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
 104                           "'{$ct}',rc_last_oldid={$obj2->old_id} WHERE " .
 105                           "rc_namespace={$ns} AND rc_title='{$title}' AND " .
 106                           "rc_timestamp='{$obj->rc_timestamp}'";
 107                         wfQuery( $sql );
 108                 } else {
 109                         $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
 110                           "'{$ct}' WHERE rc_namespace={$ns} AND rc_title='{$title}' " .
 111                           "AND rc_timestamp='{$obj->rc_timestamp}'";
 112                         wfQuery( $sql );
 113                 }
 114
 115                 if ( 0 == ( ++$count % 500 ) ) {
 116                         printf( "%d records processed.\n", $count );
 117                 }
 118         }
 119 }
 120
 121
 122 ?>