sipadu_mbip/app/Model/Module/LetterNotice.php

<?php

namespace App\Model\Module;

use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
use Jenssegers\Mongodb\Eloquent\SoftDeletes;

class LetterNotice extends Eloquent
{
    //
    use SoftDeletes;
    
    protected $connection = 'mongodb';
    protected $collection = 'letter_notice';

    protected $guarded = ['_id'];

    public function compound() {
        return $this->belongsToMany('App\Model\Module\Compound');
    }

    public function attachment() {
        return $this->hasMany('App\Model\Module\Attachment');
    }
}