cleargame/app/Models/GameList.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Support\Str;

class GameList extends Model
{
    use HasFactory;

    protected $fillable = [
        'user_id',
        'name',
        'slug',
        'description',
        'is_default'
    ];

    protected static function boot()
    {
        parent::boot();

        static::creating(function ($list) {
            $list->slug = Str::slug($list->name);
        });

        static::updating(function ($list) {
            $list->slug = Str::slug($list->name);
        });
    }

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

    public function games(): BelongsToMany
    {
        return $this->belongsToMany(Game::class)
            ->with(['platforms'])
            ->withTimestamps();
    }
}