fix variable name

Author: ziyoung

examples/docs/en-US/table.md

@@ -1332,7 +1332,7 @@ When the row content is too long and you do not want to display the horizontal s
 
 ### Tree data and lazy mode
 
-:::demo You can display tree structure data。When using it, the prop `row-key` is required。Also, child row data can be loaded asynchronously. Set `lazy` property of Table to true and the function `load`. Specify `isLeaf` attribute in row to determine which row contains children.
+:::demo You can display tree structure data。When using it, the prop `row-key` is required。Also, child row data can be loaded asynchronously. Set `lazy` property of Table to true and the function `load`. Specify `hasChildren` attribute in row to determine which row contains children.
 
 ```html
 <template>
@@ -1419,7 +1419,7 @@ When the row content is too long and you do not want to display the horizontal s
           id: 3,
           date: '2016-05-01',
           name: 'wangxiaohu',
-          isLeaf: true
+          hasChildren: true
         }, {
           id: 4,
           date: '2016-05-03',

examples/docs/es/table.md

@@ -1334,7 +1334,7 @@ Cuando el contenido de la fila es demasiado largo y busca no mostrar la barra de
 
 ### Tree data and lazy mode
 
-:::demo You can display tree structure data。When using it, the prop `row-key` is required。Also, child row data can be loaded asynchronously. Set `lazy` property of Table to true and the function `load`. Specify `isLeaf` attribute in row to determine which row contains children.
+:::demo You can display tree structure data。When using it, the prop `row-key` is required。Also, child row data can be loaded asynchronously. Set `lazy` property of Table to true and the function `load`. Specify `hasChildren` attribute in row to determine which row contains children.
 
 ```html
 <template>
@@ -1421,7 +1421,7 @@ Cuando el contenido de la fila es demasiado largo y busca no mostrar la barra de
           id: 3,
           date: '2016-05-01',
           name: 'wangxiaohu',
-          isLeaf: true
+          hasChildren: true
         }, {
           id: 4,
           date: '2016-05-03',

examples/docs/fr-FR/table.md

@@ -1335,7 +1335,7 @@ Lorsque le contenu d'une ligne est trop long et que vous ne souhaitez pas affich
 
 ### Tree data and lazy mode
 
-:::demo You can display tree structure data。When using it, the prop `row-key` is required。Also, child row data can be loaded asynchronously. Set `lazy` property of Table to true and the function `load`. Specify `isLeaf` attribute in row to determine which row contains children.
+:::demo You can display tree structure data。When using it, the prop `row-key` is required。Also, child row data can be loaded asynchronously. Set `lazy` property of Table to true and the function `load`. Specify `hasChildren` attribute in row to determine which row contains children.
 
 ```html
 <template>
@@ -1422,7 +1422,7 @@ Lorsque le contenu d'une ligne est trop long et que vous ne souhaitez pas affich
           id: 3,
           date: '2016-05-01',
           name: 'wangxiaohu',
-          isLeaf: true
+          hasChildren: true
         }, {
           id: 4,
           date: '2016-05-03',

examples/docs/zh-CN/table.md

@@ -1277,7 +1277,7 @@
 
 ### 树形数据与懒加载
 
-:::demo 支持树类型的数据。此时，必须要指定 `row-key`。支持子节点数据异步加载。设置 Table 的 `lazy` 属性为 true 与 加载函数 `load` ，指定 row 中的 `isLeaf` 来确定哪些行是包含子节点。
+:::demo 支持树类型的数据。此时，必须要指定 `row-key`。支持子节点数据异步加载。设置 Table 的 `lazy` 属性为 true 与 加载函数 `load` ，指定 row 中的 `hasChildren` 来确定哪些行是包含子节点。
 
 ```html
 <template>
@@ -1381,7 +1381,7 @@
           date: '2016-05-01',
           name: '王小虎',
           address: '上海市普陀区金沙江路 1519 弄',
-          isLeaf: true
+          hasChildren: true
         }, {
           id: 4,
           date: '2016-05-03',

packages/table/src/table-body.js

@@ -97,7 +97,7 @@ export default {
                       };
                       if (cellIndex === this.firstDefaultColumnIndex && treeNode) {
                         data.treeNode = {
-                          isLeaf: treeNode.isLeaf || (treeNode.children && treeNode.children.length),
+                          hasChildren: treeNode.hasChildren || (treeNode.children && treeNode.children.length),
                           expanded: treeNode.expanded,
                           indent: treeNode.level * this.treeIndent,
                           level: treeNode.level,

packages/table/src/table-column.js

@@ -449,7 +449,7 @@ export default {
       if (!data.treeNode) return null;
       const ele = [];
       ele.push(<span class="el-table__indent" style={{'padding-left': data.treeNode.indent + 'px'}}></span>);
-      if (data.treeNode.isLeaf) {
+      if (data.treeNode.hasChildren) {
         ele.push(<div class={ ['el-table__expand-icon', data.treeNode.expanded ? 'el-table__expand-icon--expanded' : '']}
           on-click={this.handleTreeExpandIconClick.bind(this, data)}>
           <i class='el-icon el-icon-arrow-right'></i>

packages/table/src/table-store.js

@@ -735,9 +735,9 @@ TableStore.prototype.loadData = function(row, treeNode) {
           display: true,
           level: parent.level + 1
         };
-        if (item.isLeaf) {
+        if (item.hasChildren) {
           child.expanded = false;
-          child.isLeaf = true;
+          child.hasChildren = true;
           child.children = [];
         }
         Vue.set(treeData, rowKey, child);

packages/table/src/table.vue

@@ -509,22 +509,20 @@
         };
         if (data) {
           data.forEach(item => {
-            const hasChildren = Array.isArray(item.children) && item.children.length;
-            const isLeaf = item.isLeaf;
-            if (!(hasChildren || isLeaf)) return;
-
+            const containChildren = Array.isArray(item.children) && item.children.length;
+            if (!(containChildren || item.hasChildren)) return;
             const rowKey = this.getRowKey(item);
             const treeNode = {
               level: 0,
               expanded: false,
               display: true,
               children: []
             };
-            if (hasChildren) {
+            if (containChildren) {
               treeData[rowKey] = treeNode;
               traverse(item.children, treeData[rowKey], 1);
-            } else if (isLeaf) {
-              treeNode.isLeaf = true;
+            } else if (item.hasChildren && this.lazy) {
+              treeNode.hasChildren = true;
               treeNode.loaded = false;
               treeData[rowKey] = treeNode;
             }