當控制器中包含模塊時，導軌發生錯誤

Question

當我在控制器中包含模塊時，路由不起作用，報告404未找到錯誤，以下是我的代碼，非常示例

紅寶石：2.0，軌道：4.2.3

routes.rb

match ':controller(/:action(/:id))', via: :all

common.rb

module Common
  class A; end
end

test_controller.rb

class TestController < ApplicationController
  include Common  # when I delete this line , this route '/test/hello' works as expected,
                  # otherwise rails reports 404 not found

  def hello
    render :json => {msg: 'hello'}
  end
end

Answer 1

module/class名應以大寫字母開頭Common

module Common
  class A; end
end