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Example code of zgldh/discount-and-coupon

Informations about the package discount-and-coupon

zgldh/discount-and-coupon

优惠活动、折扣计算器

Build Status

定义

  1. 折扣活动，通常用于店铺对所有消费者的活动。
  2. 优惠券，通常属于一个特定的消费者的特权。
  3. 以上两者在下文统称“benefit 权益”
  4. zgldh\DiscountAndCoupon\Benefit::class 是可享用的权益的基类，用于定义一系列折扣活动、优惠券的类型。注意是定义类型而不是实例。
  5. priority 表示该权益的判断优先级，数值越高越优先判断。

功能

  1. 输入“权益(benefit)”和一些货品，即可计算出最终价格。
  2. 可以得出每一个货品参与了哪些 权益。

用法

先给个感性认识。

如何定义店铺折扣活动 Discount

1. 定义店铺的“满减活动”：

上面我们定义了 FlatDiscountWhenPurchaseExceed 类，用于描述“满减”这一类活动。

然后我们新建了 3 个该类的对象，分别代表满20减2, 满50减10, 满100减30 这三种活动。

注意 priority 属性， 它决定了 Calculator 在尝试应用折扣时的判断顺序。由于默认以上三种活动同属于“满减”活动，且只能应用其中一种(请参考 Benefit 类的源码中对 $group 的说明)。所以我们让优惠额度最大的优先级最高，以便总是能帮客户享用最大的优惠力度。

2. 定义店铺的“迎中秋早餐8折”活动，不与其他活动同享：

3. 定义“新品促销，XX酸奶买一送一” 活动，不与其他活动同享。

下列代码是以减价实现本促销活动，会影响本次订单最终价格。

下列代码是以赠送货品实现促销活动，不会影响本次订单最终价格，但会增加商品。

如何定义优惠券 Coupon

其实优惠券和折扣活动逻辑上没有区别，请在您具体的业务代码里，删掉使用过的优惠券。

1. 定义代金券

2. 定义 “饮料升级优惠券”

能把订单内的某种饮料的一件商品替换成更贵的饮料。 本质是替换商品，所以你可以任意定义规则。

All versions of discount-and-coupon with dependencies

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