@WebMethod("circle/show")
  public RecordSet showCircles(QueryParams qp) {
    FriendshipLogic fs = GlobalLogics.getFriendship();
    GroupLogic group = GlobalLogics.getGroup();

    Context ctx = WutongContext.getContext(qp, false);
    String userId = qp.getString("user", ctx.getViewerIdString());

    boolean withPublicCircles = qp.getBoolean("with_public_circles", false);
    if (!withPublicCircles) {
      RecordSet recs =
          fs.getCircles(
              ctx, userId, qp.getString("circles", ""), qp.getBoolean("with_users", false));
      attachSubscribe(ctx, recs);
      return recs;
    } else {
      String circleIds = qp.getString("circles", "");
      boolean withMembers = qp.getBoolean("with_users", false);
      List<String> circles = StringUtils2.splitList(circleIds, ",", true);
      List<String> groups = group.getGroupIdsFromMentions(ctx, circles);
      circles.removeAll(groups);
      RecordSet recs =
          fs.getCirclesP(ctx, userId, StringUtils2.joinIgnoreBlank(",", circles), withMembers);
      RecordSet recs0 =
          group.getGroups(
              ctx,
              PUBLIC_CIRCLE_ID_BEGIN,
              PUBLIC_CIRCLE_ID_END,
              ctx.getViewerIdString(),
              StringUtils2.joinIgnoreBlank(",", groups),
              GROUP_LIGHT_COLS + ",circle_ids,formal,subtype,parent_id",
              withMembers);
      recs0.renameColumn(GRP_COL_ID, "circle_id");
      recs0.renameColumn(GRP_COL_NAME, "circle_name");
      for (Record rec : recs) rec.put("type", CIRCLE_TYPE_LOCAL);
      for (Record rec : recs0) rec.put("type", CIRCLE_TYPE_PUBLIC);
      recs.addAll(recs0);

      attachSubscribe(ctx, recs);
      return recs;
    }
  }
 @Override
 protected String getData(Context ctx, Object... args) {
   if (toIds.isEmpty()) return "";
   else return "," + StringUtils2.joinIgnoreBlank(",", toIds) + ",";
 }