sam-manage/app/Models/Juil/PmisArchiveFolder.php

<?php

namespace App\Models\Juil;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\SoftDeletes;

class PmisArchiveFolder extends Model
{
    use SoftDeletes;

    protected $fillable = [
        'tenant_id',
        'parent_id',
        'name',
        'sort_order',
        'options',
    ];

    protected $casts = [
        'options' => 'array',
    ];

    public function scopeTenant($query, $tenantId)
    {
        return $query->where('tenant_id', $tenantId);
    }

    public function children(): HasMany
    {
        return $this->hasMany(self::class, 'parent_id')->orderBy('sort_order');
    }

    public function files(): HasMany
    {
        return $this->hasMany(PmisArchiveFile::class, 'folder_id');
    }

    public function allDescendantIds(): array
    {
        $ids = [$this->id];
        foreach ($this->children as $child) {
            $ids = array_merge($ids, $child->allDescendantIds());
        }

        return $ids;
    }
}