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<?php
include_once( "Article.php" );
function compressOldPages( $start = 0 ) {
$chunksize = 50;
print "Starting from old_id $start...\n";
do {
$end = $start + $chunksize;
$sql = "SELECT old_id,old_flags,old_namespace,old_title,old_text FROM old WHERE old_id>=$start ORDER BY old_id LIMIT $chunksize";
$res = wfQuery( $sql, DB_READ, "compressOldPages" );
if( wfNumRows( $res ) == 0 ) {
break;
}
$last = $start;
while( $row = wfFetchObject( $res ) ) {
# print " {$row->old_id} - {$row->old_namespace}:{$row->old_title}\n";
compressPage( $row );
$last = $row->old_id;
}
wfFreeResult( $res );
$start = $last + 1; # Deletion may leave long empty stretches
print "$start...\n";
} while( true );
}
function compressPage( $row ) {
if( false !== strpos( $row->old_flags, "gzip" ) ) {
print "Already compressed row {$row->old_id}?\n";
return false;
}
$flags = $row->old_flags ? "{$row->old_flags},gzip" : "gzip";
$compress = wfStrencode( gzdeflate( $row->old_text ) );
$sql = "UPDATE old SET old_flags='$flags', old_text='$compress' WHERE old_id={$row->old_id} LIMIT 1";
$res = wfQuery( $sql, DB_WRITE, 'compressPage' );
return $res;
}
?>
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