将 SQL 查询转换为 ActiveRecord 查询 Ruby on Rails

【问题标题】：Convert SQL Query to ActiveRecord Query Ruby on Rails将 SQL 查询转换为 ActiveRecord 查询 Ruby on Rails
【发布时间】：2019-09-20 11:13:15
【问题描述】：

我有这个 sql 查询

SELECT count(cast(created_at + interval '8h' AS date)),
       cast(created_at + interval '8h' AS date) AS request_date,
       count(*) AS request_count
FROM api_logs
WHERE api_key = '7bfe68e0-8b54-0137-f0f1-3311231232'
  AND cast(created_at + interval '8h' AS date) BETWEEN '2019-09-05' AND '2019-09-10'
GROUP BY request_date
ORDER BY request_date DESC;

我想将其转换为我可以在 Rails 控制台中使用的 ActiveRecord 查询。

【问题讨论】：

标签： sql ruby-on-rails postgresql activerecord

【解决方案1】：

@Sebastian Palma 的答案是正确的，但我遇到了一些小错误，我只是对其进行了调整以获得我想要的解决方案。

 ApiLog
   .where(api_key: '7bfe68e0-8b54-0137-f0f1-3311231232')
   .where("CAST(created_at + interval '8h' AS date) BETWEEN '2019-09-05' AND '2019-09-10'")
   .select(
     "count(cast(created_at + interval '8h' AS date)),
      cast(created_at + interval '8h' AS date) AS request_date, 
      count(*) AS request_count"
   )
   .group(:request_date)
   .order("request_date desc")

【讨论】：