xshop/app/Models/Group.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Spatie\Translatable\HasTranslations;
use Xmen\StarterKit\Models\Category;
use Xmen\StarterKit\Models\Post;

class Group extends Model
{
    use HasFactory, SoftDeletes,HasTranslations;

    public $translatable = ['name','description'];
    public function posts()
    {
        return $this->belongsToMany(Post::class);
    }

    //
    public function parent()
    {
        return $this->belongsTo(Category::class, 'parent_id');
    }

    public function children()
    {
        return $this->hasMany(Category::class, 'parent_id');
    }

    public function getRouteKeyName()
    {
        return 'slug';
    }

    public function author()
    {
        return $this->belongsTo(\App\Models\User::class);
    }
}