模块的 Rails 4 未初始化常量 [英] Rails 4 uninitialized constant for module

问题描述

在一个新的 rails 4 应用程序中，我收到一个模块的未初始化常量错误.该模块名为 ProcessBill，位于 lib/process_bill.rb

In a new rails 4 app I anm getting an unintialized constant error for a module. The module is named ProcessBill and is located in lib/process_bill.rb

控制台错误:

ActionController::RoutingError (uninitialized constant BillsController::ProcessBill):

控制器代码:

class BillsController < ApplicationController

  include ProcessBill

lib/process_bill.rb

lib/process_bill.rb

module ProcessBill

推荐答案

您是否已将 lib 添加到自动加载路径中?这在 Rails 3 中是必需的，我不确定 Rails 4 是否仍然需要它.

Have you added lib to your autoload path? This was necessary in Rails 3, I'm not sure if it's still required for Rails 4.

尝试将其添加到 config/application.rb 中的类定义中 -

Try adding this into the class definition in config/application.rb -

    config.autoload_paths += %W(#{config.root}/lib)

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