Php 在Laravel中显示消息用户

我想获取发送的用户消息列表

我正在使用

users\u id

来存储接收者id和

sender\u id

来存储发送者id。我想在whatsapp或fb messenger中显示消息用户列表

我试过使用

$message    =  Messages::whereRaw("(sender_id, `users_id`, `created_at`) IN (
              SELECT   sender_id, `users_id`, MAX(`created_at`)
              FROM     messages
              WHERE     `users_id`=$userId
                or    `sender_id`=$userId
              GROUP BY sender_id, `users_id`)")
              ->skip($start)->take(51)
              ->orderBy('created_at','desc')
              ->get();

这将获取这些用户之间最后两次对话的数据

---

有没有办法获取用户发送或接收的最后存储的数据？？？

经过几次尝试，我最终为

会话id

创建了一个字段，并将消息分组在该id下，以便两个用户之间只有一个唯一的

会话id

$message    =  Messages::whereRaw("(sender_id, `users_id`, `created_at`) IN (
          SELECT   sender_id, `users_id`, MAX(`created_at`)
          FROM     messages
          WHERE     `users_id`=$userId
            or    `sender_id`=$userId
          GROUP BY conversationId)")
          ->skip($start)->take(50)
          ->orderBy('created_at','desc')
          ->get();

如果两个用户之间不存在对话，则会创建对话id

$message    =  Messages::whereRaw("(sender_id, `users_id`, `created_at`) IN (
          SELECT   sender_id, `users_id`, MAX(`created_at`)
          FROM     messages
          WHERE     `users_id`=$userId
            or    `sender_id`=$userId
          GROUP BY conversationId)")
          ->skip($start)->take(50)
          ->orderBy('created_at','desc')
          ->get();