Anons79 Mini Shell

<?php

namespace App;

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

class Invoice extends Model
{
    use SoftDeletes;
    protected $guarded = [];

    public function prepared()
    {
        return $this->belongsTo(User::class,'prepared_id')->withTrashed();
    }

    public function detail()
    {
    	return $this->hasMany(DetailInvoice::class)->withTrashed();
    }

    public function getTotalAttribute()
    {
        $total = 0;
            foreach ($this->detail as $d) {
                $total += $d->qty * $d->harga;
            }
        return $total;
    }

    public function delete(){
        $this->detail()->delete();
        parent::delete();
    }
}