获取通知信息 API - GetId

public async Task<ApiResult> GetId(int id)
{
    if (id <= 0 || id > 9999)
    {
        //获取最近的一条
        var data = await _db.ContentNotices
            .Where(x => x.Status == 1)
            .OrderByDescending(x => x.Sort)
            .Select(x => new NoticeInfoRes
            {
                Id = x.Id,
                Time = x.Time.ToString("yyyy-MM-dd"),
                Title = x.Title,
                Content = x.Content
            })
            .FirstOrDefaultAsync();

        return Api.Ok(data);
    }

    var notice = await _notice.GetById(id);
    if (notice == null)
    {
        var recentNotice = await _db.ContentNotices
            .Where(x => x.Status == 1)
            .OrderByDescending(x => x.Sort)
            .Select(x => new NoticeInfoRes
            {
                Id = x.Id,
                Time = x.Time.ToString("yyyy-MM-dd"),
                Title = x.Title,
                Content = x.Content
            })
            .FirstOrDefaultAsync();

        return Api.Ok(recentNotice);
    }
    else
    {
        var res = new NoticeInfoRes
        {
            Id = notice.Id,
            Time = notice.Time.ToString("yyyy-MM-dd"),
            Title = notice.Title,
            Content = notice.Content
        };

        return Api.Ok(res);
    }
}