MediaWiki 1.17.0

[autoinstallsdev/mediawiki.git] / maintenance / populateParentId.inc

diff --git a/maintenance/populateParentId.inc b/maintenance/populateParentId.inc
deleted file mode 100644 (file)
index 7b1ae3e..0000000
--- a/maintenance/populateParentId.inc
+++ /dev/null
@@ -1,83 +0,0 @@
-<?php
-
-define( 'BATCH_SIZE', 200 );
-
-function populate_rev_parent_id( $db ) {
-       wfOut( "Populating rev_parent_id column\n" );
-       $start = $db->selectField( 'revision', 'MIN(rev_id)', false, __FUNCTION__ );
-       $end = $db->selectField( 'revision', 'MAX(rev_id)', false, __FUNCTION__ );
-       if( is_null( $start ) || is_null( $end ) ){
-               wfOut( "...revision table seems to be empty.\n" );
-               $db->insert( 'updatelog',
-                       array( 'ul_key' => 'populate rev_parent_id' ),
-                       __FUNCTION__,
-                       'IGNORE' );
-               return;
-       }
-       # Do remaining chunk
-       $end += BATCH_SIZE - 1;
-       $blockStart = intval( $start );
-       $blockEnd = intval( $start ) + BATCH_SIZE - 1;
-       $count = 0;
-       $changed = 0;
-       while( $blockEnd <= $end ) {
-               wfOut( "...doing rev_id from $blockStart to $blockEnd\n" );
-               $cond = "rev_id BETWEEN $blockStart AND $blockEnd";
-               $res = $db->select( 'revision', 
-                       array('rev_id','rev_page','rev_timestamp','rev_parent_id'), 
-                       $cond, __FUNCTION__ );
-               # Go through and update rev_parent_id from these rows.
-               # Assume that the previous revision of the title was
-               # the original previous revision of the title when the
-               # edit was made...
-               foreach( $res as $row ) {
-                       # First, check rows with the same timestamp other than this one
-                       # with a smaller rev ID. The highest ID "wins". This avoids loops
-                       # as timestamp can only decrease and never loops with IDs (from parent to parent)
-                       $previousID = $db->selectField( 'revision', 'rev_id', 
-                               array( 'rev_page' => $row->rev_page, 'rev_timestamp' => $row->rev_timestamp,
-                                       "rev_id < " . intval( $row->rev_id ) ), 
-                               __FUNCTION__,
-                               array( 'ORDER BY' => 'rev_id DESC' ) );
-                       # If there are none, check the the highest ID with a lower timestamp
-                       if( !$previousID ) {
-                               # Get the highest older timestamp
-                               $lastTimestamp = $db->selectField( 'revision', 'rev_timestamp', 
-                                       array( 'rev_page' => $row->rev_page, "rev_timestamp < " . $db->addQuotes( $row->rev_timestamp ) ), 
-                                       __FUNCTION__,
-                                       array( 'ORDER BY' => 'rev_timestamp DESC' ) );
-                               # If there is one, let the highest rev ID win
-                               if( $lastTimestamp ) {
-                                       $previousID = $db->selectField( 'revision', 'rev_id', 
-                                               array( 'rev_page' => $row->rev_page, 'rev_timestamp' => $lastTimestamp ), 
-                                               __FUNCTION__,
-                                               array( 'ORDER BY' => 'rev_id DESC' ) );
-                               }
-                       }
-                       $previousID = intval($previousID);
-                       if( $previousID != $row->rev_parent_id )
-                               $changed++;
-                       # Update the row...
-                       $db->update( 'revision',
-                               array( 'rev_parent_id' => $previousID ),
-                               array( 'rev_id' => $row->rev_id ),
-                               __FUNCTION__ );
-                       $count++;
-               }
-               $blockStart += BATCH_SIZE - 1;
-               $blockEnd += BATCH_SIZE - 1;
-               wfWaitForSlaves( 5 );
-       }
-       $logged = $db->insert( 'updatelog',
-               array( 'ul_key' => 'populate rev_parent_id' ),
-               __FUNCTION__,
-               'IGNORE' );
-       if( $logged ) {
-               wfOut( "rev_parent_id population complete ... {$count} rows [{$changed} changed]\n" );
-               return true;
-       } else {
-               wfOut( "Could not insert rev_parent_id population row.\n" );
-               return false;
-       }
-}
-