处理集合子集空数组为undefined，解决平台分类选择时可选到子分类

src/views/renovation/commoditySystem/index.vue

@@ -459,20 +459,19 @@ export default {
         page: 1,
         pageSize: 1000
       })
-      this.classList = res.data.list
+      this.classList = this.filterList(res.data.list)
+    },
 
-      //处理集合子集空数组为undefined，解决平台分类选择时可选到分类
-      this.classList.forEach(firstClass => {
-        if (firstClass.childs.length === 0) {
-          firstClass.childs = undefined
-        }else {
-          firstClass.childs.forEach(secondClass => {
-            if (secondClass.childs.length === 0){
-              secondClass.childs = undefined
-            }
-          })
+    //处理集合子集空数组为undefined，解决平台分类选择时可选到子分类
+    filterList(data) {
+      data.forEach(i => {
+        if (i.childs.length) {
+          this.filterList(i.childs)
+        } else {
+          i.childs = null
         }
       })
+      return data
     },
 
     showClassSet(prod) {