Accessing ActiveRecord::Relation values

article.rb

class Article < ActiveRecord::Base
  def self.no_limit
    all.tap do |rel|
      logger.info rel.values #=> {:limit => 20}
      rel.limit = nil
    end
  end
end

class ArticlesController < ApplicationController
  def index
    @articles = Article.limit(20).no_limit
    #=> SELECT "articles".* FROM "articles"
  end
end