function show(&$field, $value)
 {
     if (empty($value)) {
         return '';
     }
     if (isset($field->field_value[$value])) {
         return $field->field_value[$value]->value;
     }
     return plgHikashopBFOrderDeliveryDate::getFormattedDate(null, plgHikashopBFOrderDeliveryDate::orderDateValue2Time($value), true);
 }