spatie/Laravel-query-builder 与微信小程序结合 关于 Include 机制

namespace App\Http\Controllers\Api;
use App\Models\User;
use App\Models\Topic;
use Illuminate\Http\Request;
use App\Http\Resources\TopicResource;
use App\Http\Requests\Api\TopicRequest;
use App\Http\Queries\TopicQuery;
class TopicsController extends Controller
{
/**

• 显示列表 : index
• @DateTime 2019/12/05
• @description 话题列表
• @param Illuminate\Http\Request $request
• @param App\Http\Queries\TopicQuery $query
• [@return](https://learnku.com/users/31554) void
  */
  public function index(Request $request, TopicQuery $query)
  {
  if($request->category_id)
  {
  $topics = $query->where('category_id', $request->category_id)->paginate();
  }else{
  $topics = $query->paginate();
  }
  return TopicResource::collection($topics);
  }