shipping-portal/app/Models/ExchangeBookingOrder.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Relations\BelongsTo;

use Illuminate\Database\Eloquent\SoftDeletes;

/**
 * Class ExchangeBookingOrder
 * @package App\Models
 *
 * @property \App\Models\Order order_id 
 */
class ExchangeBookingOrder extends AbstractModel
{
    use SoftDeletes;

    protected $table = 'exchange_booking_orders';

    protected $dates = ['deleted_at'];

    /**
     * @return BelongsTo
     */
    public function order(): BelongsTo
    {
        return $this->BelongsTo(Order::class, 'order_id', 'id');
    }

}