layui树形表格（treetable）列数据合计

项目中遇到的问题，按要求对后台数据以树形列表（使用layui的第三方扩展组件，使用方法自行百度）展示之后。又来了新的需求，需要对展开后的子列表进行统计并将结果显示到父级列表。百度了半天没找到相关的示例内容，只好自己动手了。最后在数据的回调做了处理。

需求：对下列树形表格的列数据进行合计

json数据如下：

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13:11:44","roleStatus":1,"parentPath":"67,68,43,44,","parentId":44,"path":"67,68,43,44,64,","parentName":null,"license":null,"orgid":null,"level":"5","levelName":"村(社区)","population":207,"filesNum":"0","hyNum":"0","diaNum":"0","btNum":"0","psyNum":"0","phyNum":0,"tcmNum":"0","elNum":"0","arcNum":"0","newNum":0,"postNum":"0","docName":null}],"groupid":"43","count":21}

在treetable的数据回调中执行双层for循环，第一层找到父级，第二层根据节点id找到对应的子级并将数据累加回显。

js代码

/*** 角色管理*/
var pageCurr;
var form;
var tableIns;
var treeSelect;
var treetable
var groupid
var sj = {startTime:"",endTime:""}
var startTime
var endTime
$.ajax({type: "post",url: "/statistics/getGid",success: function (data) {groupid = dataparen();}
})
layui.config({base: '/layui/'
}).extend({treetable: 'treetable-lay/treetable',treeSelect: '../js/treeselect/module/treeSelect'
})
paren=function(sj) {layui.use(['treetable','table','treeSelect'], function(){treeSelect= layui.treeSelect;var layer = layui.layer;treetable = layui.treetable;var table = layui.table;form = layui.form;//渲染表格tableIns = treetable.render({height: 'full-200',id:'id',where: sj,treeColIndex: 0,   //树形图标显示在第几列treeSpid: groupid,      //最上级的父级idtreeIdName: 'id',   //id字段的名称treePidName: 'parentId', //父级节点字段treeDefaultClose: true, //是否默认折叠treeLinkage: false,     //父级展开时是否自动展开所有子级elem: '#staList',    //表格idurl: '/statistics/getRoleTree',page: true,cols: [ [{field:'roleName', title:'乡镇名称',width:"15%"},{field:'filesNum', title:'建档数',align:'center'},{field:'hyNum', title:'高血压',align:'center'},{field:'diaNum', title:'糖尿病',align:'center'},{field:'btNum', title:'肺结核',align:'center'},{field:'psyNum', title:'精神病',align:'center'},{field:'phyNum', title: '全民体检',align:'center'},{field:'tcmNum', title: '体质辨识',align:'center'},{field:'elNum', title: '自理能力评估',align:'center'},{field:'arcNum', title: '儿童建档数',align:'center'},{field:'newNum', title: '儿童方式',align:'center'},{field:'postNum', title: '孕产妇随访数',align:'center'},{fixed:'right',title:'操作',align:'center', toolbar:'#optBar'}] ],done: function(res, curr, count){//数据回调进行统计for (let i = 0; i < res.data.length; i++) {if (res.data[i].level === '4'){var filesNumSum=0;for (let j = 0; j < res.data.length; j++) {if (res.data[i].id===res.data[j].parentId){filesNumSum = +res.data[j].filesNum+filesNumSum;}}$($("[data-field='filesNum']").children()[i+1]).text(filesNumSum)}}console.log(res.data)//关闭加载layer.closeAll('loading');}})//监听工具条table.on('tool(staTable)', function(obj){const data = obj.data;if(obj.event === 'details'){//详情details(data,data.id);}});// 搜索框layui.use(['form','laydate'], function(){const form = layui.form, laydate = layui.laydate;//日期laydate.render({elem: '#startTime'});laydate.render({elem: '#endTime'});// 监听搜索框form.on('submit(searchSubmit)', function(data){// 重新加载tableload(data);return false;});});});
}

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