class RuboCop::Cop::Rails::ActiveRecordOverride

def find_parent_class_name(node)
  return nil unless node
  if node.class_type?
    parent_class_name = node.node_parts[1]
    return nil if parent_class_name.nil?
    return parent_class_name.source
  end
  find_parent_class_name(node.parent)
end