提交订单切换优惠券 重新调用一下preview接口

src/pages/confirmOrder/confirmOrder.js

@@ -51,6 +51,7 @@ wxService.page({
             storeCode: ''
         },
         orderStoreInfo: null,
+        couponDiscountPreviews : [],
     },
 
     /**
@@ -223,13 +224,14 @@ wxService.page({
         // faceAmount 抵用多少钱（分） 1 抵用券  2 折扣券 3 定额券
         if (!e.detail) {
             this.setData({
-                defalutCoupon: 0,
-                couponId: '',
-                couponSettingId: '',
-                defalutCouponId: '',
-                currentCoupon: 0,
+              defalutCoupon: 0,
+              couponId: '',
+              couponSettingId: '',
+              defalutCouponId: '',
+              currentCoupon: 0,
             }, () => {
-                this.setPayPrice();
+              this.setPayPrice();
+              this.reCallPreview();
             });
             return
         }
@@ -247,6 +249,8 @@ wxService.page({
                 // couponId: id,
                 haveCoupon: true,
                 currentCoupon: `${parseFloat(faceAmount/10/10).toFixed(2)} 元`
+            },() => {
+              this.reCallPreview();
             })
         } else if (type == 2) {
             // let discounPrice = (faceAmount / 100) * (orderPrice)
@@ -258,6 +262,8 @@ wxService.page({
                 // couponId: id,
                 haveCoupon: true,
                 currentCoupon: `${couponDiscount} 元`
+            },() => {
+              this.reCallPreview();
             });
         }
         else if(type == 3){ //定额券
@@ -268,8 +274,11 @@ wxService.page({
             [finCouponName]: finCouponId,
             haveCoupon: true,
             currentCoupon: `${couponDiscount} 元`
+          },() => {
+            this.reCallPreview();
           })
         }
+
         // 实付款
         this.setPayPrice();
     },
@@ -505,24 +514,7 @@ wxService.page({
                 couponSettingId: '',
                 defalutCouponId: ''
             }, () => {
-                const { trolleySku2Buy, checkByPremium, addressId, addressInfo } = this.data
-
-                let params = {
-                    checkByPremium,
-                    trolleySku2Buy,
-                }
-
-                // 增加门店自提和快递配送判断
-                if (this.data.currentType == 'delivery') {
-                    params.addressId = addressId ? addressId : addressInfo.id // 微信地址 or 地址id
-                    params.orderType = 1;
-                }
-                else {
-                    params.orderType = 4;
-                    params.storeId = this.data.storeInfo.storeId;
-                }
-
-                this.calPreferentialPrice(params)  // 重新计算优惠价
+                this.reCallPreview();
                 // 获取默认付费会员设置
                 this.getPremiumDefault()
             })
@@ -553,6 +545,29 @@ wxService.page({
     selectAddress() {
         wxService.router('/pages/myAddress/myAddress?isFrom=order')
     },
+    //拼接字段重新调用preview
+    reCallPreview() {
+      const { trolleySku2Buy, checkByPremium, addressId, addressInfo } = this.data
+
+      let params = {
+        checkByPremium,
+        trolleySku2Buy,
+      }
+
+      // 增加门店自提和快递配送判断
+      if (this.data.currentType == 'delivery') {
+        params.addressId = addressId ? addressId : addressInfo.id // 微信地址 or 地址id
+        params.orderType = 1;
+      }
+      else {
+        params.orderType = 4;
+        params.storeId = this.data.storeInfo.storeId;
+      }
+
+      this.calPreferentialPrice(params)  // 重新计算优惠价
+      // 获取默认付费会员设置
+      this.getPremiumDefault()
+    },
     // 计算优惠价
     calPreferentialPrice(params) {
         wx.showLoading({
@@ -564,8 +579,7 @@ wxService.page({
                 const { result, data } = res.data
                 if (result == 0) {
                     wx.hideLoading()
-                    let skuList = data.tradePreviewSkus
-
+                    let skuList = data.tradePreviewSkus;
                     let sum = 0
                     skuList.forEach((item, index) => {
                         //  item.price
@@ -578,44 +592,58 @@ wxService.page({
 
                     if (isSelect) {
                         this.setData({
-                            selectPrice: sum
+                          selectPrice: sum
                         })
                     } else {
                         this.setData({
-                            noSelectPrice: sum
+                          noSelectPrice: sum
                         })
                     }
-
-                    //获取优惠券信息
-                    let defalutCoupon = data && data.couponDiscountPreviews.length &&
+                    //如果没有couponId则认为是第一次进来没有自己选择优惠券
+                    if (!this.data.couponId) {
+                      //获取优惠券信息
+                      let defalutCoupon = data && data.couponDiscountPreviews.length &&
                         data.couponDiscountPreviews[0].couponSettingDTO.type == 1 ?
                         data && data.couponDiscountPreviews.length &&
                         data.couponDiscountPreviews[0].couponSettingDTO.faceAmount / 100 : data &&
                         data.couponDiscountPreviews.length && data.couponDiscountPreviews[0] &&
                         data.couponDiscountPreviews[0].couponDiscount;
-                    
-                    defalutCoupon = defalutCoupon ? parseFloat(defalutCoupon).toFixed(2) : 0; 
-
-                    let defalutCouponId = data && data.couponDiscountPreviews.length &&
+                      let defalutCouponId = data && data.couponDiscountPreviews.length &&
                         data.couponDiscountPreviews[0] && data.couponDiscountPreviews[0].couponDTOS[0] &&
                         data.couponDiscountPreviews[0].couponDTOS[0].id || '';
-                    let couponSettingId = data && data.couponDiscountPreviews.length &&
+                      let couponSettingId = data && data.couponDiscountPreviews.length &&
                         data.couponDiscountPreviews[0] && data.couponDiscountPreviews[0].couponDTOS[0] &&
                         data.couponDiscountPreviews[0].couponDTOS[0].couponSettingId || '';
-                    data.couponDiscountPreviews = data.couponDiscountPreviews ? data.couponDiscountPreviews : [];
-                    // id / couponSettingId
-                    this.setData({
+                      data.couponDiscountPreviews = data.couponDiscountPreviews ? data.couponDiscountPreviews : [];
+                      this.data.couponDiscountPreviews = data.couponDiscountPreviews;
+                      // id / couponSettingId
+                      this.setData({
                         currentOrderList: data,
+                        couponDiscountPreviews: this.data.couponDiscountPreviews,
                         defalutCoupon: defalutCoupon,
                         defalutCouponId: defalutCouponId,
                         couponSettingId: couponSettingId,
                         orderInitPrice: data.amount,
-                        totalGoodsPrice: this.data.totalGoodsPrice,
-                        currentCoupon : 0,
-                    }, () => {
+                        totalGoodsPrice: this.data.totalGoodsPrice
+                      }, () => {
                         // 实付款
                         this.setPayPrice()
-                    })
+                      })
+                    }
+                    else{
+                      //重新调用之后 不刷新优惠券列表
+                      this.setData({
+                        currentOrderList: data,
+                        defalutCoupon: this.data.defalutCoupon,
+                        defalutCouponId: this.data.defalutCouponId,
+                        couponSettingId: this.data.couponSettingId,
+                        orderInitPrice: data.amount,
+                        totalGoodsPrice: this.data.totalGoodsPrice
+                      }, () => {
+                        // 实付款
+                        this.setPayPrice()
+                      })
+                    }  
                 }
             }
         })

src/pages/confirmOrder/confirmOrder.wxml

@@ -263,5 +263,8 @@
 <!--goHome-->
 <go-home/>
 <floatNav bind:getAuth="_getUserInfo" bind:updatePage="updatePage"/>
-<select-coupon show="{{showSelectCoupon}}" bind:updateCoupon="updateCoupon" coupon-list="{{currentOrderList.couponDiscountPreviews}}"/>
+<select-coupon 
+show="{{showSelectCoupon}}" 
+bind:updateCoupon="updateCoupon" 
+coupon-list="{{couponDiscountPreviews}}"/>