maintenance/archives/rebuildRecentchanges.inc

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