电子商务类网站促销优惠组件设计
+-------------+ +-----------------------+User -> Goods -> Cart -> | Delivery | -> | Promotions components | -> Checkout +-------------+ +-----------------------+ | rule A | | Promotion rule 1 | | rule B | | Promotion rule 2 | | rule C | | Promotion rule 3 | | rule D | | Promotion rule 4 | | rule E | | Promotion rule 5 | +-------------+ +-----------------------+
数据库设计
+--------------+ | shipping | +--------------+ | id |o---+ | name | | | ... | | +--------------+ | +----------------------+ | | shipping_rule | +--------------+ | +----------------------+ | zone | | | id | +--------------+ +--->| shipping_id | | id |o------->| zone_id | | name | | plugin | | | | ... | +--------------+ +----------------------+
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