isUpdateQuery function

Implementation

bool isUpdateQuery(dynamic query) {
  if (query is String) {
    return query.toLowerCase().startsWith("update");
  } else if (query is MethodElement) {
    if (query.metadata.length == 0) {
      return false;
    }
    var annotation = getAnnotation(query, Update);
    return annotation != null;
  }
  return false;
}