method_missing

# File activerecord/lib/active_record/relation/delegation.rb, line 117
        def method_missing(method, *args, &block)
          if @klass.respond_to?(method)
            unless Delegation.uncacheable_methods.include?(method)
              @klass.generate_relation_method(method)
            end
            scoping { @klass.public_send(method, *args, &block) }
          else
            super
          end
        end