izyim/app/Http/Resources/Company.php

<?php

namespace App\Http\Resources;

use App\Classes\Constants;
use App\Classes\Modules\Documents\ListDocuments;
use Illuminate\Http\Resources\Json\JsonResource;
use App\Models\AddressBook;

class Company extends JsonResource
{

    /**
     * Transform the resource into an array.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function toArray($request)
    {
        $billing = AddressBook::where('company_id',  $this->id)
            ->where('billing', true)->first();

        return [
            'id' => $this->id,
            'name' => $this->name,
            'marking' => $this->marking,
            'email' => $this->email,
            'registration_no' => $this->registration_no,
            'tax_no' => $this->tax_no,
            'street_one' => $billing ? $billing->street_one : null,
            'street_two' => $billing ? $billing->street_two : null,
            'city' => $billing ? $billing->city : null,
            'state' => $billing ? $billing->state : null,
            'post_code' => $billing ? $billing->post_code : null,
            'country' => $billing ? $billing->country : null,
            'registration_certificate' => (new ListDocuments(Constants::MODULE_TYPES['company'], $this->id, 'registration_certificate'))->execute(),
            'logo' => (new ListDocuments(Constants::MODULE_TYPES['company'], $this->id, 'logo'))->execute()
        ];
    }
}