screen/application/common/service/OrderContractSvc.php

<?php
namespace app\common\service;


use app\common\model\Orders;
use think\View;

class OrderContractSvc{
    /** @var Orders */
    protected $order;

    /**
     * @param Orders $order
     */
    public static function setOrder(Orders $order)
    {
        $new=new self;
        $new->order = $order;
        return $new;
    }

    /**
     * @return Orders
     */
    public function getOrder(): Orders
    {
        return $this->order;
    }

    public function render(){
        $content=redis()->hGet('order_contract',$this->getOrder()->id)?:'';
        if(!$content){
            try {
                $content=View::instance()
                    ->config('view_path',APP_PATH.'contract/view/')
                    ->fetch('show',[
                        'order'=>$this->getOrder(),
                        'no'=>sprintf('PK%s%02d',date('YmdHis'),$this->getOrder()->id),
                        'tax_name'=>$this->taxName(),
                        'tax_no'=>$this->getTaxNo(),
                    ]);
            }catch (\Exception $e){
                $content='';
            }

            redis()->hSet('order_contract',$this->getOrder()->id,$content);
        }

        return $content;
    }

    public function taxName(){
        $tax=$this->getOrder()->tax;
        if(empty($tax)){
            return '';
        }
        if($tax['u_type']==1){
            return $tax['name'];
        }
        return $tax['open_name'];
    }
    public function getTaxNo(){
        return $this->getOrder()->tax['tax_no']??'';
    }
}