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 = ' . $this->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); } }