如何在Ruby on Rails中生成控制器动作数组？

Question

In my Rails 4 app I have a number of static pages that should either be indexable by Google or not. I am using a variable indexable for this but there's probably a better way:

class PagesController < ApplicationController

  def home
    indexable = true
  end

  def about_us
    indexable = true
  end

  def secret_stuff
    indexable = false
  end

end

How can I generate an array of all the pages that are indexable ?

I tried doing this in a helper but it's not working:

def indexable_pages
  array = []
  PagesController.instance_methods(false).each do |action|
    if action.indexable == true # this won't work of course
      array << action
    end
  end
  array
end

Thanks for any help.

Answer 1

Maybe a before_filter would make sense?

class PagesController < ApplicationController
  before_filter :set_indexable, except: [:secret_stuff]

  def home
  end

  def about_us
  end

  def secret_stuff
  end

  private 

  def set_indexable
    @indexable = true
  end

end