# File lib/will_paginate/view_helpers/action_view.rb, line 91
    def infer_collection_from_controller
      collection_name = "@#{controller.controller_name}"
      collection = instance_variable_get(collection_name)
      raise ArgumentError, "The #{collection_name} variable appears to be empty. Did you " +
        "forget to pass the collection object for will_paginate?" if collection.nil?
      collection
    end