100 lines
1.9 KiB
PHP
100 lines
1.9 KiB
PHP
<?php
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/**
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* Created by PhpStorm.
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* User: shenyang
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* Date: 2018/5/23
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* Time: 下午3:55
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*/
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namespace app\frontend\modules\order\discount;
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use app\frontend\models\order\PreOrderDiscount;
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use app\frontend\modules\order\models\PreOrder;
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abstract class BaseDiscount
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{
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/**
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* @var PreOrder
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*/
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protected $order;
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/**
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* 优惠名
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* @var string
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*/
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protected $name;
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/**
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* 是否不显示优惠多少金额
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* @var int
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*/
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protected $no_show = 0;
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/**
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* 优惠码
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* @var
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*/
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protected $code;
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/**
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* @var float
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*/
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private $amount;
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public function __construct(PreOrder $order)
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{
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$this->order = $order;
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}
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public function getCode()
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{
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return $this->code;
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}
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public function getName()
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{
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return $this->name;
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}
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/**
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* @return bool
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*/
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public function calculated()
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{
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return isset($this->amount);
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}
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public function preSave()
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{
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return true;
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}
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/**
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* 获取总金额
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* @return float
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*/
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public function getAmount()
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{
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if (isset($this->amount)) {
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return $this->amount;
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}
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$this->amount = $this->_getAmount();
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if($this->amount && $this->preSave()){
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// 将抵扣总金额保存在订单优惠信息表中
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//统一算法记录金额保存算法为：四舍六入五成双
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$preOrderDiscount = new PreOrderDiscount([
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'discount_code' => $this->code,
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'amount' => round($this->amount,2,PHP_ROUND_HALF_EVEN),
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'name' => $this->getName(),
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'no_show' => $this->no_show
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]);
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$preOrderDiscount->setOrder($this->order);
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}
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return $this->amount;
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}
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/**
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* 获取金额
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* @return int
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*/
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abstract protected function _getAmount();
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} |