ifnex/04_Laravel/app/Models/ShipmentCarrierMapping.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class ShipmentCarrierMapping extends Model
{
    protected $fillable = [
        'shipment_id',
        'carrier_code',
        'carrier_tracking_number',
        'booking_number',
        'direction',
        'delivery_status',
        'last_synced_at',
        'manually_updated_at',
        'notes',
    ];

    protected function casts(): array
    {
        return [
            'carrier_code' => \App\Enums\CarrierCode::class,
            'direction' => \App\Enums\ShipmentDirection::class,
            'delivery_status' => \App\Enums\ShipmentStatus::class,
            'last_synced_at' => 'datetime',
            'manually_updated_at' => 'datetime',
        ];
    }

    public function shipment(): BelongsTo
    {
        return $this->belongsTo(Shipment::class);
    }
}