services_core/app/Models/NotificationPreference.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class NotificationPreference extends Model
{
    protected $guarded = ['id'];

    protected function casts(): array
    {
        return ['enabled' => 'boolean'];
    }

    public function event()
    {
        return $this->belongsTo(NotificationEvent::class, 'notification_event_id');
    }

    public function channelConfig()
    {
        return $this->belongsTo(NotificationChannel::class, 'notification_channel_id');
    }
}