/**
* update query
*
* @param File $file file instance
* @return File
*/
public function update(File $file)
{
$diff = $file->diff();
if (count($diff) > 0) {
$this->conn->table($this->table)->where('id', $file->id)->update($diff);
}
return $this->createFile(array_merge($file->getOriginal(), $diff));
}
