private function checkOAuthScope($scopeString)
{
$scopes = [];
if ($scopeString !== null) {
$scopes = explode(',', $scopeString);
}
$not_exists = [];
foreach ($scopes as $scope_id) {
$scope = OAuthScope::where('id', $scope_id)->first();
if (!$scope) {
array_push($not_exists, $scope_id);
}
}
return $not_exists;
}
