Laravel Resourve

<?php

namespace App\Http\Resources;

use Illuminate\Http\Resources\Json\ResourceCollection;
use Config;
use Carbon\Carbon;

class ExpensesRes extends ResourceCollection
{

  public function toArray($request)
  {
    // dd($request->all());
    return [
      'data' => $this->collection->transform(function($expences) {

        //protected
        $protected = false;
        $dateProtected = new Carbon('-'. Config::get('app.protected') .' day');
        if($expences->created_at <= $dateProtected) {
          $protected = true;
        }

        //category
        $category_name = '';
        if($expences->categories) {
          $category_name = $expences->categories->name;
        }

        //expenses_name
        $expenses_name = '';
        if($expences->expancenames) {
          $expenses_name = $expences->expancenames->name;
        }

        //photos
        if(isset($expences->photos)) {
          // dd($expences->photos[0]->url);
          $exp_photo = $expences->photos->transform(function($photo) {
            return [
              'id' => $photo->id,
              'name' => $photo->file_name,
              'url' => $photo->url,
              'image' => $photo->image,
              ];
          });
          // $car_photo = $expences->photos[0]->url;
        } else { $exp_photo = ''; }

        return [
          'id' => $expences->id,
          'category' => $expences->category,
          'category_name' => $category_name,
          'expenses_name' => $expenses_name,
          'date' => $expences->date,
          'cost' => $expences->cost,
          'seller_id' => $expences->seller_id,
          'description' => $expences->description,
          'mileage' => $expences->mileage,
          'created_at' => $expences->created_at,
          'extras' => $expences->extras,
          'exp_photo' => $exp_photo,
          'protected' => $protected,
        ];
      }),
    ];
  }
}