private function getRecordsByPhoneNumber($number)
 {
     $phone_record = PhoneRecord::findOne(['number' => $number]);
     if (!$phone_record) {
         return [];
     }
     $customer_record = CustomerRecord::findOne($phone_record->customer_id);
     if (!$customer_record) {
         return [];
     }
     return [$this->makeCustomer($customer_record, $phone_record)];
 }
 /**
  * Finds the CustomerRecord model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param integer $id
  * @return CustomerRecord the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModel($id)
 {
     if (($model = CustomerRecord::findOne($id)) !== null) {
         return $model;
     } else {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
 }