添加字段和计算方式

src/views/store/components/productOrder.vue

@@ -223,6 +223,11 @@
             <p>￥{{JSON.parse(scope.row.jsonInfo).price.toFixed(2)}}</p>
           </template>
         </el-table-column>
+        <el-table-column label="出库价" width="240" align="center">
+          <template slot-scope="scope">
+            <p>￥{{getOutboundPrice(scope.$index, scope.row).toFixed(2)}}</p>
+          </template>
+        </el-table-column>
         <el-table-column label="规格" width="240" align="center">
           <template slot-scope="scope">
             {{JSON.parse(scope.row.jsonInfo).sku}}
@@ -282,6 +287,22 @@
                 ￥{{order.payDelivery.toFixed(2)}}
               </span>
           </el-descriptions-item>
+          <el-descriptions-item label="折扣率"  >
+              <span v-if="order!=null && productTotal > 0">
+                {{((order.payPrice / productTotal) * 100).toFixed(2)}}%
+              </span>
+              <span v-else-if="order!=null">
+                0.00%
+              </span>
+          </el-descriptions-item>
+          <el-descriptions-item label="产品合计"  >
+              <span v-if="order!=null && items!=null && items.length > 0">
+                ￥{{productTotal.toFixed(2)}}
+              </span>
+              <span v-else-if="order!=null">
+                ￥0.00
+              </span>
+          </el-descriptions-item>
       </el-descriptions>
 
       <div style="margin-top: 20px">
@@ -674,6 +695,27 @@ export default {
   computed: {
     company(){
       return this.$store.state.user.user;
+    },
+    /**
+     * 计算产品合计：每个产品单价*数量之和
+     */
+    productTotal() {
+      if (!this.items || this.items.length === 0) {
+        return 0;
+      }
+      let total = 0;
+      for (let i = 0; i < this.items.length; i++) {
+        const item = this.items[i];
+        try {
+          const jsonInfo = JSON.parse(item.jsonInfo);
+          const price = parseFloat(jsonInfo.price) || 0;
+          const num = parseFloat(item.num) || 0;
+          total += price * num;
+        } catch (e) {
+          console.warn('解析商品信息失败', e);
+        }
+      }
+      return total;
     }
   },
   methods: {
@@ -906,6 +948,60 @@ export default {
         this.editForm.orderVisit = this.order.orderVisit;
 
     },
+    /**
+     * 计算出库价
+     * @param index 商品索引
+     * @param row 商品行数据
+     * @returns {number} 出库价
+     */
+    getOutboundPrice(index, row) {
+      if (!this.order || !this.items || this.items.length === 0) {
+        return 0;
+      }
+      
+      const jsonInfo = JSON.parse(row.jsonInfo);
+      const price = parseFloat(jsonInfo.price) || 0;
+      const num = parseFloat(row.num) || 0;
+      
+      // 计算折扣率：应付金额 / 产品合计
+      const payPrice = parseFloat(this.order.payPrice) || 0;
+      
+      if (this.productTotal <= 0) {
+        return 0;
+      }
+      
+      const discountRate = payPrice / this.productTotal;
+      
+      // 如果只有一个商品，直接按折扣率计算
+      if (this.items.length === 1) {
+        return price * discountRate;
+      }
+      
+      // 多个商品的情况
+      // 判断是否是最后一个商品
+      const isLastItem = index === this.items.length - 1;
+      
+      if (isLastItem) {
+        // 最后一个商品：出库价 = (应付金额 - 之前所有产品出库价*数量的合计) / 数量
+        let previousTotal = 0;
+        for (let i = 0; i < index; i++) {
+          const prevRow = this.items[i];
+          const prevJsonInfo = JSON.parse(prevRow.jsonInfo);
+          const prevPrice = parseFloat(prevJsonInfo.price) || 0;
+          const prevNum = parseFloat(prevRow.num) || 0;
+          const prevOutboundPrice = prevPrice * discountRate;
+          previousTotal += prevOutboundPrice * prevNum;
+        }
+        
+        if (num > 0) {
+          return (payPrice - previousTotal) / num;
+        }
+        return 0;
+      } else {
+        // 前n-1个商品：出库价 = 单价 * 折扣率
+        return price * discountRate;
+      }
+    },
     getOrder(orderId){
         this.orderId=orderId;
         this.certificates = null;