maintenance/archives/rebuildRecentchanges.inc

   1 <?php
   2 /**
   3  * Rebuild recent changes table
   4  *
   5  * @file
   6  * @deprecated
   7  * @ingroup MaintenanceArchive
   8  * @defgroup MaintenanceArchive MaintenanceArchive
   9  */
  10
  11 /** */
  12 function rebuildRecentChangesTable()
  13 {
  14         $sql = "DROP TABLE IF EXISTS recentchanges";
  15         wfQuery( $sql );
  16
  17         $sql = "CREATE TABLE recentchanges (
  18   rc_timestamp varchar(14) binary NOT NULL default '',
  19   rc_cur_time varchar(14) binary NOT NULL default '',
  20   rc_user int(10) unsigned NOT NULL default '0',
  21   rc_user_text varchar(255) binary NOT NULL default '',
  22   rc_namespace tinyint(3) unsigned NOT NULL default '0',
  23   rc_title varchar(255) binary NOT NULL default '',
  24   rc_comment varchar(255) binary NOT NULL default '',
  25   rc_minor tinyint(3) unsigned NOT NULL default '0',
  26   rc_new tinyint(3) unsigned NOT NULL default '0',
  27   rc_cur_id int(10) unsigned NOT NULL default '0',
  28   rc_this_oldid int(10) unsigned NOT NULL default '0',
  29   rc_last_oldid int(10) unsigned NOT NULL default '0',
  30   INDEX rc_cur_id (rc_cur_id),
  31   INDEX rc_cur_time (rc_cur_time),
  32   INDEX rc_timestamp (rc_timestamp),
  33   INDEX rc_namespace (rc_namespace),
  34   INDEX rc_title (rc_title)
  35 ) TYPE=MyISAM PACK_KEYS=1;";
  36         wfQuery( $sql );
  37
  38         print( "Loading from CUR table...\n" );
  39
  40         $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
  41           "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
  42           "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT cur_timestamp," .
  43           "cur_timestamp,cur_user,cur_user_text,cur_namespace,cur_title," .
  44           "cur_comment,cur_minor_edit,cur_is_new,cur_id,0,0 FROM cur " .
  45           "ORDER BY cur_timestamp DESC LIMIT 5000";
  46         wfQuery( $sql );
  47
  48         print( "Loading from OLD table...\n" );
  49
  50         $sql = "INSERT INTO recentchanges (rc_timestamp,rc_cur_time,rc_user," .
  51       "rc_user_text,rc_namespace,rc_title,rc_comment,rc_minor,rc_new," .
  52       "rc_cur_id,rc_this_oldid,rc_last_oldid) SELECT old_timestamp,''," .
  53           "old_user,old_user_text,old_namespace,old_title,old_comment," .
  54           "old_minor_edit,0,0,old_id,0 FROM old ORDER BY old_timestamp " .
  55           "DESC LIMIT 5000";
  56         wfQuery( $sql );
  57
  58         $sql = "SELECT rc_timestamp FROM recentchanges " .
  59           "ORDER BY rc_timestamp DESC LIMIT 5000,1";
  60         $res = wfQuery( $sql );
  61         $obj = wfFetchObject( $res );
  62         $ts = $obj->rc_timestamp;
  63
  64         $sql = "DELETE FROM recentchanges WHERE rc_timestamp < '{$ts}'";
  65         wfQuery( $sql );
  66
  67         rebuildRecentChangesTablePass2();
  68 }
  69
  70 function rebuildRecentChangesTablePass2()
  71 {
  72         $ns = $id = $count = 0;
  73         $title = $ct =  "";
  74
  75         print( "Updating links...\n" );
  76
  77         $sql = "SELECT rc_namespace,rc_title,rc_timestamp FROM recentchanges " .
  78           "ORDER BY rc_namespace,rc_title,rc_timestamp DESC";
  79         $res = wfQuery( $sql );
  80
  81         while ( $obj = wfFetchObject( $res ) ) {
  82                 if ( ! ( $ns == $obj->rc_namespace &&
  83                            0 == strcmp( $title, wfStrencode( $obj->rc_title ) ) ) ) {
  84
  85                         $ns = $obj->rc_namespace;
  86                         $title = wfStrencode( $obj->rc_title );
  87
  88                         $sql = "SELECT cur_id,cur_timestamp FROM cur WHERE " .
  89                           "cur_namespace={$ns} AND cur_title='{$title}'";
  90                         $res2 = wfQuery( $sql );
  91                         $obj2 = wfFetchObject( $res2 );
  92
  93                         $id = $obj2->cur_id;
  94                         $ct = $obj2->cur_timestamp;
  95                 }
  96                 $sql = "SELECT old_id FROM old WHERE old_namespace={$ns} " .
  97                   "AND old_title='{$title}' AND old_timestamp < '" .
  98                   "{$obj->rc_timestamp}' ORDER BY old_timestamp DESC LIMIT 1";
  99                 $res2 = wfQuery( $sql );
 100
 101                 if ( 0 != wfNumRows( $res2 ) ) {
 102                         $obj2 = wfFetchObject( $res2 );
 103
 104                         $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
 105                           "'{$ct}',rc_last_oldid={$obj2->old_id} WHERE " .
 106                           "rc_namespace={$ns} AND rc_title='{$title}' AND " .
 107                           "rc_timestamp='{$obj->rc_timestamp}'";
 108                         wfQuery( $sql );
 109                 } else {
 110                         $sql = "UPDATE recentchanges SET rc_cur_id={$id},rc_cur_time=" .
 111                           "'{$ct}' WHERE rc_namespace={$ns} AND rc_title='{$title}' " .
 112                           "AND rc_timestamp='{$obj->rc_timestamp}'";
 113                         wfQuery( $sql );
 114                 }
 115
 116                 if ( 0 == ( ++$count % 500 ) ) {
 117                         printf( "%d records processed.\n", $count );
 118                 }
 119         }
 120 }
 121
 122
 123 ?>