public function updateById(array $fields, $model_id)
{
$project = $this->getById($model_id);
if (array_key_exists('private_key', $fields)) {
if (empty($fields['private_key'])) {
unset($fields['private_key']);
} else {
$project->public_key = '';
}
}
$project->update($fields);
return $project;
}