phpstock/app/model/Supplier.php

<?php
declare (strict_types = 1);

namespace app\model;

use think\Model;

/**
 * @mixin \think\Model
 */
class Supplier extends Base
{
    protected $globalScope=['is_del'];
	public function scopeIsDel($query){
		$query->where('is_del',0);
	}
}