method_missing

# File activerecord/lib/active_record/relation.rb, line 364
    def method_missing(method, *args, &block)
      if Array.method_defined?(method)
        to_a.send(method, *args, &block)
      elsif @klass.scopes[method]
        merge(@klass.send(method, *args, &block))
      elsif @klass.respond_to?(method)
        scoping { @klass.send(method, *args, &block) }
      elsif arel.respond_to?(method)
        arel.send(method, *args, &block)
      else
        super
      end
    end