vue在使用element UI tree的时候,需要按照了element UI-tree的结构来处理数据。那么如何来处理呢?请参考下面的方法示例
通常原始数据格式为:
datas: [
{
id: 13,
parentId: 0,
order: 1,
name: "truck"
},
{
id: 16,
pluginId: null,
parentId: 0,
order: 1,
name: "sca"
},
{
id: 17,
pluginId: 6,
parentId: 16,
order: 1,
name: "abcf"
},
{
id: 18,
pluginId: 13,
parentId: 13,
order: 1,
name: "dddd"
}
]
改变后的格式为:
newdatas: [
{
id: 13,
name: "truck",
order: 1,
parentId: 0,
children: [
{
id: 18, name: "dddd", order: 1, parentId: 13, children: [] }
]
},
{
id: 16,
name: "sca",
order: 1,
parentId: 0,
children: [
{
id: 17, name: "abcf", order: 1, parentId: 16, children: [] }
]
}
],
实现的方法为:
getListData() {
let dataArray = [];
this.datas.forEach(function(data) {
// if (data.enabled == true) {
let parentId = data.parentId;
if (parentId == 0) {
let objTemp = {
id: data.id,
name: data.name,
order: data.order,
parentId: parentId
};
dataArray.push(objTemp);
}
// }
});
this.data2treeDG(this.datas, dataArray);
this.newdatas = dataArray;
},
data2treeDG(datas, dataArray) {
for (let j = 0; j < dataArray.length; j++) {
let dataArrayIndex = dataArray[j];
let childrenArray = [];
let Id = dataArrayIndex.id;
for (let i = 0; i < datas.length; i++) {
let data = datas[i];
// if (data.enabled == true) {
let parentId = data.parentId;
if (parentId == Id) {
//判断是否为儿子节点
let objTemp = {
id: data.id,
name: data.name,
order: data.order,
parentId: parentId
};
childrenArray.push(objTemp);
}
// }
}
dataArrayIndex.children = childrenArray;
if (childrenArray.length > 0) {
//有儿子节点则递归
this.data2treeDG(datas, childrenArray);
}
}
return dataArray;
},
专栏目标
在vue和element UI联合技术栈的操控下,本专栏提供行之有效的源代码示例和信息点介绍,做到灵活运用。
(1)提供vue2的一些基本操作:安装、引用,模板使用,computed,watch,生命周期(beforeCreate,created,beforeMount,mounted, beforeUpdate,updated, beforeDestroy,destroyed,activated,deactivated,errorCaptured,components,)、 $root , $parent , $children , $slots , $refs , props, $emit , eventbus ,provide / inject, Vue.observable, $listeners, $attrs, $nextTick , v-for, v-if, v-else,v-else-if,v-on,v-pre,v-cloak,v-once,v-model, v-html, v-text, keep-alive,slot-scope, filters, v-bind,.stop, .native, directives,mixin,render,国际化,Vue Router等
(2)提供element UI的经典操作:安装,引用,国际化,el-row,el-col,el-button,el-link,el-radio,el-checkbox ,el-input,el-select, el-cascader, el-input-number, el-switch,el-slider, el-time-picker, el-date-picker, el-upload, el-rate, el-color-picker, el-transfer, el-form, el-table, el-tree, el-pagination,el-badge,el-avatar,el-skeleton, el-empty, el-descriptions, el-result, el-statistic, el-alert, v-loading, $message, $alert, $prompt, $confirm , $notify, el-breadcrumb, el-page-header,el-tabs ,el-dropdown,el-steps,el-dialog, el-tooltip, el-popover, el-popconfirm, el-card, el-carousel, el-collapse, el-timeline, el-divider, el-calendar, el-image, el-backtop,v-infinite-scroll, el-drawer等