From 2ca3f9b64059b0a48b2d14569ed027a442a6908f Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Fri, 09 Apr 2021 10:36:09 +0800
Subject: [PATCH] 修复树表数据显示不全&加载慢问题

---
 ruoyi-ui/src/utils/ruoyi.js |   79 ++++++++++++++++++++++-----------------
 1 files changed, 44 insertions(+), 35 deletions(-)

diff --git a/ruoyi-ui/src/utils/ruoyi.js b/ruoyi-ui/src/utils/ruoyi.js
index 5277672..dd5ef15 100644
--- a/ruoyi-ui/src/utils/ruoyi.js
+++ b/ruoyi-ui/src/utils/ruoyi.js
@@ -1,4 +1,4 @@
-/**
+/**
  * 通用js方法封装处理
  * Copyright (c) 2019 ruoyi
  */
@@ -58,7 +58,7 @@
 	var search = params;
 	search.params = {};
 	if (null != dateRange && '' != dateRange) {
-		if (typeof(propName) === "undefined") {
+		if (typeof (propName) === "undefined") {
 			search.params["beginTime"] = dateRange[0];
 			search.params["endTime"] = dateRange[1];
 		} else {
@@ -87,8 +87,8 @@
 	var currentSeparator = undefined === separator ? "," : separator;
 	var temp = value.split(currentSeparator);
 	Object.keys(value.split(currentSeparator)).some((val) => {
-        Object.keys(datas).some((key) => {
-            if (datas[key].dictValue == ('' + temp[val])) {
+		Object.keys(datas).some((key) => {
+			if (datas[key].dictValue == ('' + temp[val])) {
 				actions.push(datas[key].dictLabel + currentSeparator);
 			}
 		})
@@ -129,38 +129,47 @@
  * @param {*} id id字段 默认 'id'
  * @param {*} parentId 父节点字段 默认 'parentId'
  * @param {*} children 孩子节点字段 默认 'children'
- * @param {*} rootId 根Id 默认 0
  */
-export function handleTree(data, id, parentId, children, rootId) {
-	id = id || 'id'
-	parentId = parentId || 'parentId'
-	children = children || 'children'
-	rootId = rootId || Math.min.apply(Math, data.map(item => { return item[parentId] })) || 0
-	//对源数据深度克隆
-	const cloneData = JSON.parse(JSON.stringify(data))
-	//循环所有项
-	const treeData = cloneData.filter(father => {
-		let branchArr = cloneData.filter(child => {
-			//返回每一项的子级数组
-			return father[id] === child[parentId]
-		});
-		branchArr.length > 0 ? father.children = branchArr : '';
-		//返回第一层
-		return father[parentId] === rootId;
-	});
-	return treeData != '' ? treeData : data;
-}
+export function handleTree(data, id, parentId, children) {
+	let config = {
+		id: id || 'id',
+		parentId: parentId || 'parentId',
+		childrenList: children || 'children'
+	};
 
-  /**
-   * 参数处理
-   * @param {*} params  参数
-   */
-export function tansParams(params) {
-	let result = ''
-	Object.keys(params).forEach((key) => {
-		if (!Object.is(params[key], undefined) && !Object.is(params[key], null) && !Object.is(JSON.stringify(params[key]), '{}')) {
-			result += encodeURIComponent(key) + '=' + encodeURIComponent(params[key]) + '&'
+	var childrenListMap = {};
+	var nodeIds = {};
+	var tree = [];
+
+	for (let d of data) {
+		let parentId = d[config.parentId];
+		if (childrenListMap[parentId] == null) {
+			childrenListMap[parentId] = [];
 		}
-	})
-	return result
+		nodeIds[d[config.id]] = d;
+		childrenListMap[parentId].push(d);
+	}
+
+	for (let d of data) {
+		let parentId = d[config.parentId];
+		if (nodeIds[parentId] == null) {
+			tree.push(d);
+		}
+	}
+
+	for (let t of tree) {
+		adaptToChildrenList(t);
+	}
+
+	function adaptToChildrenList(o) {
+		if (childrenListMap[o[config.id]] !== null) {
+			o[config.childrenList] = childrenListMap[o[config.id]];
+		}
+		if (o[config.childrenList]) {
+			for (let c of o[config.childrenList]) {
+				adaptToChildrenList(c);
+			}
+		}
+	}
+	return tree;
 }

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