Each coupon has an integer N printed on it, meaning that when you use this coupon with a product, you You can apply coupon 3 (with N being 4) to product 1 (with value M7) to get M28 back; coupon 2 to product 2 to get M12 back; and coupon 4 to product 4 to get M3 back. On the other hand, if you apply coupon 3 to product 4, you will have to pay M12 to the shop. Each coupon and each product may be selected at most once.
home_new_people_coupon 这是首页活动模块的表{ "objectTypeName": "home_new_people_coupon", "fields": [ {"fieldName ", "indexList": [{"fieldName":"home_coupon_activity_id","sortType":"ASC"}]} ], "permissions": [ { "objectTypeName": "coupon_info", "fields": [ {"fieldName": "coupon_id", "fieldType": "Integer" ", "objects": [ { "coupon_id": 10, "home_coupon_activity_id": 10, "price": "10", ", "objects": [ { "coupon_id": 10, "home_coupon_activity_id": 10, "price": "10",
: number): void { this.coupon_id = coupon_id; } getCoupon_id(): number { return =new coupon_mall() coupon.id=Math.floor(Math.random() * 1000000); coupon.user_id user_id coupon.coupon_id=this.couponList[i].coupon_id coupon.price=Number(this.couponList [i].price) coupon.type=0 coupon.limit_amount=this.couponList[i].limit_amount coupon.start_time=this.creatTime() coupon.end_time=this.endTime() coupon.type_str
= collect($detail); $collection_coupon = $collection_coupon->where('diff', '<=' ,'0'); //去除优惠券剩余数量为 ',$activity['activity_id'])->first(); $check_time = $this-> checkCouponTime($act_coupon['start_time' = $this->getCouponExpire($collection_coupon,$params['mobile']); //这里提示有一个优惠券列表,根据自己的业务需求做,这个方法就不贴了 //return $coupon; if($coupon == 1){ $result = [ 'code' => 4, ]; return $result; } //5:已领取过优惠券提示 */ public function insertUserCoupon($user,$coupon) { $relate = []; foreach($coupon as $item){
= new coupon_mall(); coupon.id=Math.floor(Math.random() * 1000000); coupon.user_id user_id coupon.coupon_id=item.coupon_id coupon.price=Number(item.price) coupon.type=0 coupon.limit_amount=item.limit_amount coupon.start_time =this.creatTime() coupon.end_time=this.endTime() coupon.type_str=item.type coupon.txt="全场商品通用" const databaseZone = cloudDatabase.zone('default')
coupon__valid_end_date__gte=now(), coupon__object_id=course_id, # 课程id ) coupon_id): coupon_obj = models.Coupon.objects.filter(id=coupon_id).first() coupon_type = coupon_obj.coupon_type # 等值货币 money_equivalent_value = coupon_obj.money_equivalent_value = coupon_obj.minimum_consume if coupon_type == 0: # 立减券 price -= money_equivalent_value (price, course_coupon_id) """5.判断通用优惠券是否合法""" global_coupon_id = request.data.get
System 模型定义 优惠券系统的难点 3.1 表单设计 券批次(券模板),coupon_batch 指一批优惠券的抽象、模板,包含优惠券的大部分属性。 : create table t_coupon ( coupon_id int null comment '券ID,主键', user_id int INSERT INTO coupon (user_id, coupon_id,batch_id) VALUES(1001, 66889, 1111); UPDATE coupon_batch SET INSERT INTO coupon (user_id, coupon_id,batch_id) VALUES(1001, 66889, 1111); UPDATE coupon_batch SET 表设计 优惠券操作记录表 Coupon_opt_record create table t_coupon_opt_record ( user_id int null comment
看看原本是这样,这里的left是8px .coupon { ... .coupon { ... 同理,我们添加右边波浪, .coupon { ... 添加文字
= '/v3/marketing/favor/coupon-stocks';//创建代金券批次API const START_COUPON_STOCKS = '/v3/marketing/favor /stocks/%d/start';//激活代金券批次API const COUPON_SEND = '/v3/marketing/favor/users/%s/coupons';//发放代金券 API const PAUSE_COUPON_STOCKS = '/v3/marketing/favor/stocks/%d/pause';//暂停代金券批次API const RESTART_COUPON_STOCKS = '/v3/marketing/favor/stocks/%d/pause';//重启代金券批次API const QUERY_COUPON_STOCKS = '/v3/marketing/ API const QUERY_COUPON_INFO = '/v3/marketing/favor/users/%s/coupons/%s';//查询代金券详情API const QUERY_COUPON_MERCHANTS
实现过程 1、新建优惠劵表 coupon 2、新建领取优惠劵记录表 user_coupon_records 3、使用springboot+mybatisplus实现需求,这里只展示实现代码,其它相关代码就不做展示了 Override @Transactional(rollbackFor = Exception.class) public Result claim() { //获取优惠劵是否有库存 Coupon coupon = couponMapper.selectOne(new QueryWrapper<Coupon>() .eq("id", 1)); if (coupon.getStock 可以将代码这样改 synchronized (this){} synchronized (this) { //获取优惠劵是否有库存 Coupon coupon = couponMapper.selectOne (new QueryWrapper<Coupon>() .eq("id", 1)); if (coupon.getStock() < 1) { throw
""" name = models.CharField(max_length=32) # 不生成字段只用于反向查询 coupons = GenericRelation(to="Coupon ") class Coupon(models.Model): """ id title table_id object_id 1 蛋炒饭半价 ': '煎饼五折'} models.Coupon.objects.create( title=dic['coupon'], content_type_id (title=dic['coupon'], content_object=fruit_obj) """""" # 根据 Coupon 表的不生成资源的 content_object 直接获得关联对象 obj = models.Coupon.objects.filter(id=4).first() print(obj.content_object)
member.getDiscount()); } } 2.优惠卷减免实现类 public class CouponDiscountStrategy implements IOrderDiscountStrategy<Coupon >{ @Override public BigDecimal discount(Coupon coupon , BigDecimal totalMoney) { return totalMoney.subtract(coupon.getMoney()); } } 3.方案折扣实现类 public class DiscountSchemeStrategy coupon = new Coupon("88888", new BigDecimal("121.5"), "开业优惠券"); IOrderDiscountStrategy<Coupon = new CouponDiscountStrategy(); BigDecimal couponDiscount = couponDiscountStrategy.discount(coupon
= null&Coupon_id=null,则表示普通消费日期;如果Date != null&Coupon_id ! =null,有券未消费(cpon_no_consume) 如果Date=null & Coupon_id =null,无券未消费(no_cpon_no_consume) 如果Date! =null & Coupon_id=null,无券消费(no_cpon_consume) 如果Date!=null & Coupon_id! ','User_id']] coupon_sendout_everyday = coupon_sendout_everyday.groupby('Date_received').count() coupon_sendout_everyday = coupon_sendout_everyday.rename(columns={'User_id':'count'}) coupon_sendout_everyday 绘制每天发券量和每天用券量
, long maturity,duration长 当yield<6%, CTD bond high coupon, short maturity, duration短 当yield是upward,CTD ,bond CF=1.1, QBP(债券报价)=100, 到下一次coupon day还有90天,future是180天后交付,rf=3%。 计算0时刻bond的spot price:计算出前一次coupon以后的AI,spot price=QBP+AI (就是dirty price),QBP是前一次coupon的clean price 在0 下一次coupon时刻支付coupon,把coupon折现到0时刻= ? 90天以后支付coupon(在180天内只支付一次coupon),把这个coupon折现到0时刻的PV= ? ,(AI是下一次coupon以后的),算出QFP ?
>validatorCoupon($request); // 设置优惠码 $this->orderProcessService->setCoupon($coupon Coupon { // 如果提交了优惠码 if ($request->filled('coupon_code')) { // 查询优惠码是否存在 $coupon = $this->couponService->withHasGoods($request->input('coupon_code'), $request->input (__('dujiaoka.prompt.coupon_does_not_exist')); } // 剩余次数不足 if ($coupon ')); } return $coupon; } return null; } public function
/ele.png', bannerPic: '/static/coupon/ele_banner.png', url: 'https://tb.ele.me/wow/ele-ad scene=s.click.ele.me%2FeoTiVtu' } }, { name: '饿了么超级红包', icon: '/static/coupon/ ele.png', bannerPic: '/static/coupon/elede.png', url: 'https://tb.ele.me/wow/ele-ad/act bannerPic: '/static/coupon/elecs.png', url: 'https://tb.ele.me/wow/ele-ad/act/dgz-xls-online? ', bannerPic: '/static/coupon/mt56.png', url: 'https%3a%2f%2fact.meituan.com%2fclover
} } 5.2简单工厂模式(Simple Factory) //工厂方法模式的抽象工厂类 public abstract class CouponFactory { public abstract Coupon couponType); } //工厂方法模式的具体工厂类 public class ConcreteFactory extends CouponFactory { @Override public Coupon { public abstract void printCouponInfo(); } //工厂方法模式的具体产品类 public class DiscountCoupon extends Coupon { @Override public void printCouponInfo() { System.out.println("This is a discount coupon!") ("This is a cash back coupon!")
getResult(); } //建造者模式的具体建造者类 public class ConcreteBuilder extends CouponBuilder { private Coupon coupon ; public ConcreteBuilder() { coupon = new Coupon(); } @Override public void buildType() { coupon.setType buildExpiryDate() { coupon.setExpiryDate("2020-12-31"); } @Override public Coupon getResult() { return coupon; } } //建造者模式的指挥者类 public class Director { private CouponBuilder couponBuilder; public Director coupon = concreteBuilder.getResult(); } }
3、优惠券领用事实表(累积型快照事实表) 3.1、创建表结构 drop table if exists dwd_fact_coupon_use; create external table dwd_fact_coupon_use insert overwrite table dwd_coupon_use partition(dt) select id, coupon_id, user_id, order_id partition(dt) select if(new.id is null,old.id,new.id), if(new.coupon_id is null,old.coupon_id ,new.order_id), if(new.coupon_status is null,old.coupon_status,new.coupon_status), if(new.get_time select id, coupon_id, user_id, order_id, coupon_status,
> persons = new ArrayList<Coupon>(); persons.add(new Coupon(13,0,new BigDecimal(40))); persons.add(new Coupon(13,0,new BigDecimal(50))); persons.add(new Coupon(13,0,new BigDecimal( 45))); persons.add(new Coupon(1,0,new BigDecimal(20))); persons.add(new Coupon(13,1,new BigDecimal(30))); persons.add(new Coupon(1,0,new BigDecimal(25))); persons.add(new Coupon >() { //按可用升序,券类型降序,面额降序 public int compare(Coupon o1, Coupon o2) {