From 90bf25f06256b06ebcbedd0b2838db9e2f9df40f Mon Sep 17 00:00:00 2001
From: cloudroam <cloudroam>
Date: 星期三, 18 九月 2024 14:44:44 +0800
Subject: [PATCH] add:商品限购数量
---
src/main/java/com/mzl/flower/service/payment/OrderService.java | 140 ++++++++++++++++++++++++++++++++++++++++++----
1 files changed, 128 insertions(+), 12 deletions(-)
diff --git a/src/main/java/com/mzl/flower/service/payment/OrderService.java b/src/main/java/com/mzl/flower/service/payment/OrderService.java
index 9660450..54dd68e 100644
--- a/src/main/java/com/mzl/flower/service/payment/OrderService.java
+++ b/src/main/java/com/mzl/flower/service/payment/OrderService.java
@@ -40,6 +40,7 @@
import com.mzl.flower.mapper.system.UserWechatMapper;
import com.mzl.flower.mapper.warehouse.WarehouseLocationMapper;
import com.mzl.flower.service.BaseService;
+import com.mzl.flower.service.coupon.CouponRecordService;
import com.mzl.flower.service.flower.FlowerService;
import com.mzl.flower.service.menber.MemberGrowthRecordService;
import com.mzl.flower.service.point.CustomerPointService;
@@ -154,6 +155,9 @@
@Autowired
private RedisLockService lockService;
+ @Autowired
+ private CouponRecordService couponRecordService;
+
public void changeFlower2Cart(CartSaveDTO dto) {
String userId = SecurityUtils.getUserId();
String key = userId + "_" + dto.getId();
@@ -176,7 +180,7 @@
cartMapper.insert(c);
} else {
- c.setNum(c.getNum() + dto.getNum());
+ c.setNum((c.getNum()==null?0:c.getNum()) + dto.getNum());
c.update(userId);
if (c.getNum() <= 0) {
cartMapper.deleteById(c.getId());
@@ -438,8 +442,9 @@
order.setTransportFee(transportFee);
order.setDeliveryName(deliveryName);
- BigDecimal totalAmount = order.getFlowerAmount().add(p.getPacking()).add(transportFee);//使用优惠券之前的总价
+ BigDecimal totalAmount = order.getFlowerAmount();//使用优惠券之前的总价，使用商品价格
CouponRecordDO coupon = useCouponRecord(order.getId(), totalAmount, dto.getCouponRecordId());
+ log.info("用户优惠券: " + coupon);
if(coupon != null){
order.setMemberCouponId(coupon.getId());
order.setMemberCouponCode(coupon.getCouponCode());
@@ -447,6 +452,13 @@
order.setMemberCouponAmount(coupon.getCouponDiscountValue());
totalAmount = totalAmount.subtract(order.getMemberCouponAmount());//满足条件需要减去优惠券金额
+ }
+ if(totalAmount.doubleValue() < 0){//假如扣除优惠券后金额小于0，则按0计算
+ totalAmount = new BigDecimal(0);
+ }
+ totalAmount = totalAmount.add(p.getPacking()).add(transportFee);
+ if(totalAmount.doubleValue() <= 0){//假如总价小于等于0，则支付0.01元
+ totalAmount = new BigDecimal(0.01);
}
order.setTotalAmount(totalAmount);
@@ -470,7 +482,9 @@
Map<Long, List<ParamItemDTO>> paramMap = new HashMap<>();
final BigDecimal flowerAmount = order.getFlowerAmount();//订单商品总价
final BigDecimal memberCouponAmount = order.getMemberCouponAmount();//使用优惠券面值
- for (FlowerCartListDTO f : flowers) {
+ BigDecimal usedCouponAmount = new BigDecimal(0);
+ for (int i = 0; i < flowers.size(); i++) {
+ FlowerCartListDTO f = flowers.get(i);
OrderItem t = new OrderItem();
t.setId(UUIDGenerator.getUUID());
t.setOrderId(order.getId());
@@ -499,9 +513,19 @@
t.setTotal(f.getTotalMember());//使用会员总价
t.setOriginalPrice(pp.getPrice());//非会员售价
- BigDecimal couponAmount = calculateCoupon(memberCouponAmount, t.getTotal(), flowerAmount, t.getNum());
+ boolean isLastOne = i == (flowers.size() - 1);
+ BigDecimal couponAmount = calculateCoupon(memberCouponAmount, t.getTotal()
+ , flowerAmount, t.getNum(), t.getPrice(), isLastOne, usedCouponAmount);
t.setCouponAmount(couponAmount);//每扎平摊的优惠券面值
- t.setRealPrice(t.getPrice().subtract(couponAmount));//退款时使用的真实成交价
+ t.setRealPrice(t.getPrice().subtract(couponAmount));//退款时使用的真实成交单价
+
+ t.setCouponAmountTotal(couponAmount.multiply(BigDecimal.valueOf(t.getNum())));
+ if(isLastOne){
+ t.setCouponAmountTotal(memberCouponAmount.subtract(usedCouponAmount));
+ } else {
+ usedCouponAmount = usedCouponAmount.add(t.getCouponAmountTotal());
+ }
+ t.setRealTotal(t.getTotal().subtract(t.getCouponAmountTotal()));
t.create(userId);
orderItemMapper.insert(t);
@@ -546,21 +570,38 @@
* @param itemTotalAmount
* @param totalAmount
* @param num
+ * @param price
* @return
*/
private BigDecimal calculateCoupon(BigDecimal couponAmount, BigDecimal itemTotalAmount
- , BigDecimal totalAmount, Integer num){
+ , BigDecimal totalAmount, Integer num, BigDecimal price
+ , boolean isLastOne, BigDecimal usedCouponAmount){
if(couponAmount == null){
return new BigDecimal(0);
}
- BigDecimal radio = itemTotalAmount.divide(totalAmount, 2, RoundingMode.HALF_UP);//计算该商品总价在订单中的占比
+
+ if(couponAmount.doubleValue() >= totalAmount.doubleValue()){
+ return price;
+ }
+ if(isLastOne){//最后的商品使用优惠券剩下的面值
+ BigDecimal subCoupon = couponAmount.subtract(usedCouponAmount);//占有的优惠券面值
+ return subCoupon.divide(BigDecimal.valueOf(num), 2, RoundingMode.HALF_UP);
+ }
+
+ /*BigDecimal radio = itemTotalAmount.divide(totalAmount, 2, RoundingMode.HALF_UP);//计算该商品总价在订单中的占比
BigDecimal subCoupon = couponAmount.multiply(radio);//占有的优惠券面值
- return subCoupon.divide(BigDecimal.valueOf(num), 2, RoundingMode.HALF_UP);
+ return subCoupon.divide(BigDecimal.valueOf(num), 2, RoundingMode.HALF_UP);*/
+
+ //不能分步计算，分步计算会有精度问题
+ return couponAmount.multiply(itemTotalAmount).divide(totalAmount.multiply(BigDecimal.valueOf(num)), 2, RoundingMode.HALF_UP);
}
private CouponRecordDO useCouponRecord(String orderId, BigDecimal amount, String couponRecordId){
+ log.info("使用用户优惠券id: " + couponRecordId + "; 订单id: " + orderId);
if(StringUtils.isNotEmpty(couponRecordId)){
- //TODO 优惠券使用和验证，如果不符合使用条件需要抛出异常。需调用优惠券使用方法
+ //优惠券使用和验证，如果不符合使用条件需要抛出异常。需调用优惠券使用方法
+ couponRecordService.useCoupon(couponRecordId, orderId, amount);
+ return couponRecordService.getCouponRecordById(couponRecordId);
}
return null;
@@ -771,10 +812,9 @@
orderIds.add(o.getId());
}
- List<OrderItem> itemList = orderItemMapper.selectList(
- new QueryWrapper<OrderItem>().in("order_id", orderIds));
+ List<OrderItemListDTO> itemList = orderItemMapper.getOrderItems(orderIds);
Map<String, List<OrderItemListDTO>> map = new HashMap<>();
- for (OrderItem oi : itemList) {
+ for (OrderItemListDTO oi : itemList) {
String orderId = oi.getOrderId();
List<OrderItemListDTO> ll = map.computeIfAbsent(orderId, k -> new ArrayList<>());
OrderItemListDTO d = new OrderItemListDTO();
@@ -872,6 +912,82 @@
return ls;
}
+ public List<OrderCheckLocationListDTO> selectOrderCheckLocationList(OrderQueryDTO dto) {
+ dto.setIdList(splitParam(dto.getIds()));
+ dto.setStartDate(parseLocalDateTime(dto.getStartDateStr(), true));
+ dto.setEndDate(parseLocalDateTime(dto.getEndDateStr(), false));
+
+ dto.setCreateStartDate(parseLocalDateTime(dto.getCreateStartDateStr(), 17, 0, 0, -1));
+ dto.setCreateEndDate(parseLocalDateTime(dto.getCreateEndDateStr(), 17, 0, 0, 0));
+
+ List<OrderCheckListDTO> ls = orderMapper.selectOrderCheckList(dto);
+
+ List<OrderCheckLocationListDTO> result = new ArrayList<>();
+
+ if (ls != null && ls.size() > 0) {
+ List<String> orderIds = new ArrayList<>();
+ Map<Long, OrderCheckLocationListDTO> rMap = new HashMap<>();
+ Map<String, OrderCheckListDTO> orderMap = new HashMap<>();
+ for (OrderCheckListDTO c : ls) {
+ orderIds.add(c.getId());
+
+ orderMap.put(c.getId(), c);
+
+ Long locationId = c.getWarehouseLocationId();
+ OrderCheckLocationListDTO llc = rMap.get(locationId);
+ if(llc == null){
+ llc = new OrderCheckLocationListDTO();
+ BeanUtils.copyProperties(c, llc);
+ llc.setTotalAmount(new BigDecimal(0));
+
+ rMap.put(locationId, llc);
+ result.add(llc);
+ }
+
+ BigDecimal t = llc.getTotalAmount();
+ if(t == null){
+ t = new BigDecimal(0);
+ }
+ t = t.add(c.getTotalAmount());
+ llc.setTotalAmount(t);
+ }
+
+ Map<Long, String> stationMap = prepareStationMap();
+
+ List<OrderItem> itemList = orderItemMapper.selectList(new QueryWrapper<OrderItem>()
+ .in("order_id", orderIds));
+ Map<String, List<OrderItemLocationListDTO>> map = new HashMap<>();
+
+ for (OrderItem oi : itemList) {
+ String orderId = oi.getOrderId();
+ List<OrderItemLocationListDTO> ll = map.computeIfAbsent(orderId, k -> new ArrayList<>());
+ OrderItemLocationListDTO d = new OrderItemLocationListDTO();
+ BeanUtils.copyProperties(oi, d);
+ d.setStationName(stationMap.get(oi.getStationId()));
+
+ OrderCheckListDTO c = orderMap.get(oi.getOrderId());
+ d.setOrderNo(c.getOrderNo());
+ d.setOrderId(c.getId());
+
+ ll.add(d);
+ }
+
+ for (OrderCheckListDTO c : ls) {
+ String orderId = c.getId();
+ Long locationId = c.getWarehouseLocationId();
+ OrderCheckLocationListDTO r = rMap.get(locationId);
+ List<OrderItemLocationListDTO> items = r.getItems();
+ if(items == null){
+ items = new ArrayList<>();
+ r.setItems(items);
+ }
+ items.addAll(map.get(orderId));
+ }
+ }
+
+ return result;
+ }
+
public Page<OrderListDTO> selectPartnerOrderList(Page page, OrderQueryDTO dto) {
Partner p = getCurrentPartner();
dto.setPartnerId(p.getId());
--
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