func (v *view) SortBy(sortBy string) *url.URL { return http_util.WithParams( v.Url, "sort", sortBy, "id", "0") }
func withId(url *url.URL, id int64) *url.URL { idStr := strconv.FormatInt(id, 10) result := *http_util.WithParams(url, "id", idStr) result.Fragment = idStr return &result }