/**
* update seller's reference number
* @author Cangzhou.Wu(wucangzhou@gmail.com)
* @throws \yii\db\Exception
*/
public function updateReferenceNo()
{
$referrer = $this->referrer;
$customer = Kiwi::getCustomer()->findOne(['username' => $referrer]);
$seller = Kiwi::getCustomerSeller()->findOne(['customer_id' => $customer->id]);
$seller->reference_no = $seller->reference_no + 1;
if (!$seller->save()) {
throw new Exception('update ReferenceNo fail', $seller->getErrors());
}
}
