process_sheet/fastadmin/application/common/model/ps/Product.php

<?php

namespace app\common\model\ps;

class Product extends FactoryModel
{
    protected $name = 'ps_product';

    public function processes()
    {
        return $this->hasMany(ProductProcess::class, 'product_id', 'id')->order('seq asc,id asc');
    }
}