baoshi-was/app/ProcurementTotalBill.php

<?php

namespace App;

use App\Traits\ModelTimeFormat;
use Illuminate\Database\Eloquent\Model;

use App\Traits\ModelLogChanging;

class ProcurementTotalBill extends Model
{
    use ModelLogChanging;
    use ModelTimeFormat;

    protected $fillable=[
        'counting_month','supplier_id','status'
    ];
    public function supplier(){
        return $this->belongsTo('App\Supplier','supplier_id','id');
    }
}