diff options
Diffstat (limited to 'maintenance/populateParentId.inc')
-rw-r--r-- | maintenance/populateParentId.inc | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/maintenance/populateParentId.inc b/maintenance/populateParentId.inc deleted file mode 100644 index 7b1ae3e8..00000000 --- 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; - } -} - |