laralog/app/Models/Category.php

<?php

declare(strict_types=1);

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Spatie\MediaLibrary\HasMedia;
use Spatie\MediaLibrary\InteractsWithMedia;

class Category extends Model implements HasMedia
{
    use HasFactory;
    use InteractsWithMedia;

    protected $fillable = [
        'name',
        'slug',
        'display_order',
        'post_count',
        'description',
    ];

    public function posts(): HasMany
    {
        return $this->hasMany(Post::class);
    }

    public function getUrlAttribute(): string
    {
        return route('category.show', $this->id);
    }

    public function registerMediaCollections(): void
    {
        $this->addMediaCollection('cover')
            ->useDisk(\App\Support\MediaDisk::name())
            ->singleFile();
    }
}