如何使用Ruby on Rails gem包含控制器？ [英] How to include a controller with a Ruby on Rails gem?

问题描述

我试图贡献一个开源项目，我需要一个控制器来处理需要提交的几个表单。

我创建了这些控制器里面的宝石名称叫做 app / controllers / gemname / my_controller.rb 。

然而，当我尝试访问控制器，它似乎没有被加载（我得到一个名称错误，就像我输入类似NonExistentController的东西）。

如何加载我的控制器宝石是什么？

谢谢！

解决方案

假设您的宝石是称为 MyGem ，并且您有一个名为 SuperController 的控制器，您可以在该应用程序中使用它。您的控制器应该定义为：

  module MyGem 
 class SuperController< ApplicationController 
 def 
 ... 
 end 
 end 
 end 
  

，并且位于您的gem目录中，它应该位于 app / controllers / my_gem / super_controller.rb （ not lib 文件夹）。查看 Devise的源代码，因为他们也这么做。

您可以从创建自己的Rails引擎的指南Gem 关于您当前的项目。

I'm trying to contribute to an open source project and I need a controller to handle a couple of forms that need to be submitted in.

I created these controllers inside a directory inside the gem called app/controllers/gemname/my_controller.rb.

However, when I try to access the controller, it seems not to be loaded (I get a name error just as if I typed something like NonExistentController).

How do I load my controller with the gem?

Thanks!

解决方案

Let's assume your gem is called MyGem and you have a controller called SuperController that you want to use in the app. Your controller should be defined as:

module MyGem
  class SuperController < ApplicationController
    def whatever
      ...
    end
  end
end

and in your gem directory it should live at app/controllers/my_gem/super_controller.rb (not under the lib folder). Check out the source for Devise as they do the same thing.

[Edit] You may learn something from A Guide To Starting Your Own Rails Engine Gem regarding your current project.

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