hainan/app/Http/Controllers/Api/MessageController.php

<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\Message;
use App\Models\MessageRead;
use Illuminate\Http\Request;

/**
 * 短消息
 * Class MessageController
 * @package App\Http\Controllers\Api
 */
class MessageController extends Controller
{
    public function index()
	{
		$list = Message::query()->where('agent_id', $this->agent_id)
			->whereIn('user_id', [$this->user_id, 0]) //0是所有人都接收的系统消息
			->select('id', 'title', 'created_at')
			->selectRaw('IF(( SELECT 1 FROM `message_reads` AS `mr` WHERE mr.id = messages.id AND mr.user_id = messages.user_id ), 1, 0) AS `is_read`')
			->orderBy('id', 'DESC')
			->simplePaginate(15);

		return $this->success($list);
	}

	public function show()
	{
		$id = (int)request()->input('id');

		//增加where条件是为了防止偷看别人的消息
		$message = Message::where(['agent_id' => $this->agent_id])
			->whereIn('user_id', [$this->user_id, 0]) //0是所有人都接收的系统消息
			->find($id);

		if (!$message) {
			return $this->error('消息不存在或已删除');
		}

		//标记短消息为已读
		MessageRead::insertOrIgnore(['id' => $id, 'user_id' => $this->user_id]);

		return $this->success($message);
	}
}