private function importStaff()
{
$table = 'staff';
$items = $this->getStaff();
Staff::unguard();
DB::table($table)->truncate();
foreach ($items as $item) {
$campus = Campus::findBySlug($item->campus_slug);
$data = get_object_vars($item);
unset($data['campus_slug']);
$model = new Staff($data);
$model->campus_id = is_null($campus) ? null : $campus->id;
$model->save();
}
}
