public function start($settings)
{
$history = $this->getNewImportHistoryRecord();
$history->userId = $settings['user'];
$history->type = $settings['type'];
$history->file = $settings['file'];
$history->rows = $settings['rows'];
$history->behavior = $settings['behavior'];
$history->status = ImportModel::StatusStarted;
$history->save(false);
return $history->id;
}