protected function seeds_model_PaymentModel()
 {
     foreach ($this->payments as $key => $val) {
         $payment = new PaymentModel();
         $payment->name = $key;
         $payment->title = $val['title'];
         $payment->desc = $val['desc'];
         $payment->partner_id = $val['partner_id'];
         $payment->partner_key = $val['partner_key'];
         $payment->seller_email = $val['seller_email'];
         $payment->options = array('ca_cert_path' => $val['ca_cert']);
         $payment->save();
     }
     return null;
 }