关于ruby：如何使用Rails 3获取请求的目标控制器和操作？


How to get request's target controller and action with Rails 3?

在应用程序控制器前过滤。

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class ApplicationController < ActionController::Base
  before_filter :authenticate

  def authenticate
    # How do we know which controller and action was targetted?
  end
end
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class ApplicationController < ActionController::Base
  before_filter :authenticate

  def authenticate
    # How do we know which controller and action was targetted?
    params[:controller]
    params[:action]
    # OR
    controller.controller_name
    controller.action_name    
  end
end
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在Rails3.2中，您不再需要显式地调用controller.action_name，而只需调用"action_name"。

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before_filter :check_if_locked


def check_if_locked
  puts action_name
  puts controller_name
end

您可以使用

url = Rails.application.routes.recognize_path(request.env['PATH_INFO'])

现在您可以获得组件

url[:controller]

url[:action]

默认情况下，您也可以在请求/响应生命周期中分别使用params[:controller]和params[:action]。

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request.parameters['controller']
request.parameters['action']