protected function buildUpData()
    {
        $data   = [];
        $fields = $this->definition->getEditableFieldNames();
        foreach ($fields as $field) {
            $data[$field] = $this->entity->getRaw($field);
            $fixed        = $this->definition->getField($field, 'value');
            if ($fixed) {
                $data[$field] = $fixed;
            }
        }
        return $data;
    }