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如果一个项目正在运行 Rails 2.2.2,并且它使用controller.helper并且helper没有定义,那么如何解决?(这是 Facebooker2 gem http://github.com/mmangino/facebooker2

细节:

显示错误:

=> Rails 2.2.2 application starting on http://0.0.0.0:3000
Exiting
/Library/
  Ruby/
    Gems/1.8/gems/facebooker2-0.0.5/lib/facebooker2/rails/controller.rb:8:
      in `included': undefined method `helper' for Object:Class (NoMethodError)

代码是:错误行是第 8 行:

        controller.helper Facebooker2::Rails::Helpers

在以下代码中:

module Facebooker2
  module Rails
    module Controller

      def self.included(controller)
        controller.helper Facebooker2::Rails::Helpers
        controller.helper_method :current_facebook_user
        controller.helper_method :current_facebook_client
        controller.helper_method :facebook_params
      end
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