class RuboCop::Cop::Rails::WhereExists

def on_send(node)
  find_offenses(node) do |args|
    return unless convertable_args?(args)
    range = correction_range(node)
    good_method = build_good_method(args)
    message = format(MSG, good_method: good_method, bad_method: range.source)
    add_offense(range, message: message) do |corrector|
      corrector.replace(range, good_method)
    end
  end
end