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;
}