bike-admin/app/Http/Resources/QuestionResource.php

<?php

namespace App\Http\Resources;

use App\Models\Area;
use Carbon\Carbon;
use Illuminate\Http\Resources\Json\JsonResource;

class QuestionResource extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function toArray($request)
    {
        $model = $this->resource;
        $area_id = $model->users->register_area_id ?? 0;
        $area = Area::find($area_id);

        $data = [
            'id' => $model->id,
            'nickname' => $model->users->nickname ?? '',
            'mobile' => $model->users->mobile ?? '',
            'question' => $model->question,
            'created_at' => Carbon::parse($model->created_at)->format('Y-m-d H:i:s'),
            'area_id' => $area_id,
            'is_read' => $model->is_read,
            'area_name' => empty($area)?  '' : $area->name
        ];
        return $data;
    }
}