protected function beforeInsert()
{
$this->_data['created'] = date('Y-m-d H:i:s', cot::$sys['now']);
$this->_data['created_by'] = cot::$usr['id'];
$this->_data['updated'] = date('Y-m-d H:i:s', cot::$sys['now']);
$this->_data['updated_by'] = cot::$usr['id'];
return parent::beforeInsert();
}
