/**
* Get an array or iterator of file objects for files that have a given
* SHA-1 content hash.
*/
function findBySha1($hash)
{
$dbr = $this->getSlaveDB();
$res = $dbr->select('image', LocalS3File::selectFields(), array('img_sha1' => $hash));
$result = array();
while ($row = $res->fetchObject()) {
$result[] = $this->newFileFromRow($row);
}
$res->free();
return $result;
}
function getCacheFields($prefix = 'img_')
{
$fields = parent::getCacheFields($prefix);
$fields[] = $prefix . 'archive_name';
$fields[] = $prefix . 'deleted';
return $fields;
}
