def update_columns(attrs)
      redis.multi do
        attrs.each do |attr, value|
          if self.class.fields.has_key?(attr)
            write_attribute(attr, value)  
            redis.hset(key_for(:attributes), attr, self.class.transform(:to, attr, value)) unless new_record?
          end

          if self.class.lists.has_key?(attr)
            write_list(attr, value)       

            unless new_record?
              redis.del(key_for(attr))
              redis.rpush(key_for(attr), value) unless value.empty?
            end
          end

          if self.class.hashes.has_key?(attr)
            write_hash(attr, value)       

            unless new_record?
              hash_as_args = hash_to_redis(value)
              redis.hmset(key_for(attr), *hash_as_args)
            end
          end
        end
      end
    end
def update_columns(attrs)
      redis.multi do
        attrs.each do |attr, value|
          if self.class.fields.has_key?(attr)
            write_attribute(attr, value)  
            redis.hset(key_for(:attributes), attr, self.class.transform(:to, attr, value)) unless new_record?
          end

          if self.class.lists.has_key?(attr)
            write_list(attr, value)       

            unless new_record?
              redis.del(key_for(attr))
              redis.rpush(key_for(attr), value) unless value.empty?
            end
          end

          if self.class.hashes.has_key?(attr)
            write_hash(attr, value)       

            unless new_record?
              hash_as_args = hash_to_redis(value)
              redis.hmset(key_for(attr), *hash_as_args)
            end
          end
        end
      end
    end
Update fields without hitting the callbacks