隔离引擎（门卫） - 使用main_app中的帮助器方法 [英] Isolated engine (doorkeeper) - use helper methods from the main_app

问题描述

我希望我的看门人视图能够使用应用程序布局：

https://github.com/applicake/doorkeeper/wiki/Customizing-views

这包含路线和辅助方法来自主应用程序。

对于路由，我可以将main_app前缀添加到路径，但对于辅助方法，我得到以下错误：

 未定义方法`is_active？'for＃< ActionDispatch :: Routing :: RoutesProxy：0xade808c> 
 
< li class =<％= main_app.is_active？（high_voltage / pages，api）％>><％= link_to t（'developers'） ，page_path（'api'）％>< / li> 
  

这是为什么？帮助程序位于 app / helpers / application_helper.rb中

解决方案

您生成了视图，并且它们被放置在 app / views / doorkeeper / ** 中，然后引擎仍然使用守门员控制器。

为了解决这个问题，你必须将你的助手包含到引擎的 ApplicationController 中。假设你有这样的事情：

app / helpers / application_helper.rb

  module ApplicationHelper 
 def my_helper 
hello
 end 
 end 
  

app / views / doorkeeper / applications / index.html.erb

 < p> 
<％= my_helper％> 
< / p> 
  

直到您将应用程序帮助程序添加到门卫控制器中后，才会生效。所以在 config / application.rb ：

  class YourApp :: Application < Rails :: Application 
 config.to_prepare do 
＃仅包含ApplicationHelper模块
 Doorkeeper :: ApplicationController.helper ApplicationHelper 
 
＃包含应用程序中的所有帮助程序
 Doorkeeper :: ApplicationController.helper YourApp :: Application.helpers 
 end 
 end 
  

这是类似的配置，当你想自定义布局。

I want my doorkeeper views to use the application layout:

https://github.com/applicake/doorkeeper/wiki/Customizing-views

This contains routes and helper methods from the main application.

For the routes, I can prefix main_app to the path but for the helper method I get the following error:

undefined method `is_active?' for #<ActionDispatch::Routing::RoutesProxy:0xade808c>

<li class="<%= main_app.is_active?("high_voltage/pages", "api") %>"><%= link_to t('developers'), page_path('api') %></li>

Why is this? The helper is in app/helpers/application_helper.rb

解决方案

If you generated the views and they are placed in app/views/doorkeeper/** then the engine still uses doorkeeper controllers.

To fix this, you have to include your helper(s) into the engine's ApplicationController. Let's say you have something like this:

app/helpers/application_helper.rb

module ApplicationHelper
  def my_helper
    "hello"
  end
end

app/views/doorkeeper/applications/index.html.erb

<p>
  <%= my_helper %>
</p>

This won't work until you include your application helpers into doorkeeper controllers. So in config/application.rb:

class YourApp::Application < Rails::Application
  config.to_prepare do
    # include only the ApplicationHelper module
    Doorkeeper::ApplicationController.helper ApplicationHelper

    # include all helpers from your application
    Doorkeeper::ApplicationController.helper YourApp::Application.helpers
  end
end

this is similar configuration when you want to customize the layout.

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