回收书单统计的平均价格

src/views/statistic/recycleOrder/index.vue

@@ -7,6 +7,7 @@
       :columns="columns"
       :tools="false"
       show-summary
+      :summary-method="getSummaries"
       :flex-table="false"
     >
       <template #toolbar="{ row }">
@@ -54,6 +55,74 @@
     cacheKey: 'recycleOrderStatisticTable'
   });
 
+  /**
+   * 自定义表格汇总计算方法
+   * @param {Object} param0 - 表格数据和列信息
+   * @returns {Array} - 汇总行显示的数据
+   */
+  function getSummaries({ columns, data }) {
+    const sums = [];
+    columns.forEach((column, index) => {
+      if (index === 0) {
+        sums[index] = '合计';
+        return;
+      }
+
+      const values = data.map((item) => Number(item[column.property]));
+
+      if (!values.length) {
+        sums[index] = 'N/A';
+        return;
+      }
+
+      switch (column.property) {
+        case 'recycleAveragePrice': {
+          // 只计算有值的数据的平均值
+          const validValues = values.filter((value) => value && !isNaN(value));
+          if (validValues.length > 0) {
+            const sum = validValues.reduce((prev, curr) => prev + curr, 0);
+            sums[index] = (sum / validValues.length).toFixed(2);
+          } else {
+            sums[index] = '';
+          }
+          break;
+        }
+        case 'orderNum':
+        case 'bookNum':
+        case 'auditNum': {
+          // 求和
+          const sum = values.reduce((prev, curr) => {
+            const value = Number(curr);
+            if (!isNaN(value)) {
+              return prev + value;
+            } else {
+              return prev;
+            }
+          }, 0);
+          sums[index] = sum;
+          break;
+        }
+        case 'auditMoney': {
+          // 求和，保留两位小数
+          const sum = values.reduce((prev, curr) => {
+            const value = Number(curr);
+            if (!isNaN(value)) {
+              return prev + value;
+            } else {
+              return prev;
+            }
+          }, 0);
+          sums[index] = sum.toFixed(2);
+          break;
+        }
+        default:
+          sums[index] = '';
+      }
+    });
+
+    return sums;
+  }
+
   //刷新表格
   function reload(where) {
     pageRef.value?.reload(where);