func markFeedAsRead(user content.User, id string, timestamp int64) (resp responseError) { resp = newResponse() t := time.Unix(timestamp/1000, 0) switch { case id == "all": if user.ReadBefore(t, true); user.HasErr() { resp.err = user.Err() return } case id == "favorite" || strings.HasPrefix(id, "popular:"): // Favorites are assumbed to have been read already case strings.HasPrefix(id, "tag:"): tag := user.Repo().Tag(user) tag.Value(data.TagValue(id[4:])) if tag.ReadBefore(t, true); tag.HasErr() { resp.err = tag.Err() return } default: var feedId int64 if feedId, resp.err = strconv.ParseInt(id, 10, 64); resp.err != nil { /* TODO: non-fatal error */ return } feed := user.FeedById(data.FeedId(feedId)) if feed.ReadBefore(t, true); feed.HasErr() { resp.err = feed.Err() return } } resp.val["Success"] = true return }