Ruby on Rails 2.3.8：在before_filter中未定义params？

Question

  before_filter :only => :destroy do |controller| 
      controller.is_object_on_same_account_as_current_account_for_id?(controller_name.classify.constantize, params[:id])
  end

生成错误：

NameError: undefined local variable or method `params' 
 app/controller/controller:4

我认为params在整个请求过程中始终可用... = \

Answer 1

尝试controller.params[:id]，因为为控制器定义了params。

Answer 2

尝试request.params [：id]或controller.request.params [：id]