$grace = 60; // maximum normal clock offset
# Find bounding revision IDs
- $dbw = wfGetDB( DB_MASTER );
+ $dbw = $this->getDB( DB_MASTER );
$revisionTable = $dbw->tableName( 'revision' );
$res = $dbw->query( "SELECT MIN(rev_id) as minrev, MAX(rev_id) as maxrev FROM $revisionTable " .
"WHERE rev_timestamp BETWEEN '{$start}' AND '{$end}'", __METHOD__ );