[update] 外来标准法规

src/views/standardRegulationLibrary/foreignStandard/ForeignStandardList.vue

@@ -341,8 +341,17 @@ export default {
         this.filters.nodeCode = null
         if (res.success) {
           this.treeData = res.result || []
-          // 根节点默认展开
-          this.expandedKeys = [this.treeData[0].key]
+          if (this.expandedKeys.length <= 0) {
+            // 根节点默认展开
+            this.expandedKeys = [this.treeData[0].key]
+          } else {
+            const treeDataList = this.getTreeDataList(this.treeData)
+            const treeDataListKeys = treeDataList.map(item => item.key)
+            // 不是叶子结点的结点
+            const notLeafKeys = treeDataList.filter(item => !item.leaf).map(item => item.key)
+            // 还存在的树节点并且还有子节点的展开节点依然展开
+            this.expandedKeys = this.expandedKeys.filter(item => treeDataListKeys.includes(item) && notLeafKeys.includes(item))
+          }
         } else {
           this.$message.warn(res.message)
         }
@@ -350,6 +359,17 @@ export default {
         this.treeLoading = false
       })
     },
+    getTreeDataList (treeData) {
+      let treeDataList = []
+      for (const item of treeData) {
+        treeDataList.push(item)
+        if (item.children && item.children.length > 0) {
+          const list = this.getTreeDataList(item.children)
+          treeDataList = treeDataList.concat(list)
+        }
+      }
+      return treeDataList
+    },
     /**
      * 树节点查询
      */