使用 Rails REST API 为特定计数添加自定义元数据

如何解决使用 Rails REST API 为特定计数添加自定义元数据

对于 time_trackings 索引端点，除了由 pagy（分页 gem）提供的“page-items”、“total-pages”等之外，我还需要返回特定的元数据信息。我希望能够返回 'total_confirmed'、'total_running' 等。我使用了 ransack 进行计数，看起来像这样

def set_time_trackings_Metadata(records)
  total_unconfirmed = records.ransack("confirmed_true" => 0).result.count.to_s
  total_confirmed = records.ransack("confirmed_true" => 1).result.count.to_s
  total_running = records.ransack("running" => 1).result.count.to_s

  @time_tracking_Metadata = { total_unconfirmed: total_unconfirmed,total_confirmed: total_confirmed,total_running: total_running  }
end

这显示了正确的元数据。这是一个示例响应

{
"data": [
    {
        "id": "15","type": "time_tracking","attributes": {
            "starts_at": "2021-02-18T05:16:00+01:00","ends_at": "2021-02-18T14:00:00+01:00","confirmed": false,...
"Meta": {
    "current_page": "1","page_items": "20","total_pages": "1","total_count": "4","total_unconfirmed": "4","total_confirmed": "0","total_running": "3"
 }
}

现在的问题是，这个解决方案根本不理想，尤其是当索引有数百或数千条记录时，这对于我正在处理的用例来说很常见。有没有更好的方法来计算这些参数？