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如何从简单的json制作所需的json树

本文介绍了如何从简单的json制作所需的json树的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我在将简单的 json 转换为 json 树时遇到问题



我需要遵循的步骤是：


  1. 查找父元素 pid：0 将有一些 _id：'5a016637e986c90418e96ee9'


  2. 在其他对象 _id：5a016637e986c90418e96ee9 as pid > 例如：将导致 _id：5a0d852ce986c9041df2aafb 以及其他一些


  3. 查找高于 _id 我，e 5a0d852ce986c9041df2aafb 等等......

这是我的json：



我想将我的json转换为如下所示： 

  [
 {
_id：5a016637e986c90418e96ee9，
pid： 0\" ， 
name：general-categories，
nodes：[
 {
priority：3，
name_lower：悲剧， 
_id：5a0d852ce986c9041df2aafb，
pid：b016637e986c90418e96ee9，
名称：悲剧，
 
节点：[
 {
priority：3，
name_lower：natural，
_id：5a0d8544e986c9041df2aafd，
pid：5a0d852ce986c9041df2aafb， 
name：natural，
 
nodes：[
 
 {
priority：3，
name_lower ：地震，
_id：5a0d85c6e986c9041df2ab02，
pid：5a0d8544e986c9041df2aafd，
名称：地震，
节点： [] //等............ 
 } 
] 
} 
] 
} 
] 
} 
]

在这里看到输出json我想如何转换我的json：



查看完整数据：



这是我尝试过的（有一半样本数据）： 



  var data = [{categories：[{_ id：5a016637e986c90418e96ee9，pid：0，name ： 一般类别}，{ 优先：3 name_lower： 悲剧， _ ID： 5a0d852ce986c9041df2aafb， PID：5a016 637e986c90418e96ee9\" ， 名： 悲剧}，{ 优先：3， name_lower： 自然， _ ID： 5a0d8544e986c9041df2aafd， PID： 5a0d852ce986c9041df2aafb， 名： 自然 }，{ 优先：3， name_lower： 人类， _ ID： 5a0d8544e986c9041df2aafe， PID： 5a0d852ce986c9041df2aafb， 名： 人}，{ 优先：3 name_lower ： 大地震， _ ID： 5a0d85c6e986c9041df2ab02， PID： 5a0d8544e986c9041df2aafd， 名： 大地震}，{ 优先：3， name_lower： 洪水， _ ID ： 5a0d85c6e986c9041df2ab03， PID： 5a0d8544e986c9041df2aafd， 名： 洪水}，{ 优先：3， name_lower： 干旱， _ ID： 5a0d85c6e986c9041df2ab04， PID： 5a0d8544e986c9041df2aafd， 名： 干旱}，{ 优先：3， name_lower： 山体滑坡， _ ID： 5a0d85c6e986c9041df2ab05， PID： 5a0d8544e986c9041df2aafd， 名： 山体滑坡 }，{ 优先：3， name_lower： 海啸， _ ID： 5a0d85c6e986c9041df2ab07， PID： 5a0d8544e986c9041df2aafd， 名： 海啸}，{ 优先：3 name_lower ： 森林火灾， _ ID： 5a0d85c6e986c9041df2ab09， PID： 5a0d8544e986c9041df2aafd ， 名： 森林火灾}，{ 优先：3， name_lower： 神池， _ ID： 5a0d85c6e986c9041df2ab0a， PID： 5a0d8544e986c9041df2aafd， 名： 神池 }，{ 优先：3， name_lower： 旋风， _ ID： 5a0d85c6e986c9041df2ab0f， PID： 5a0d8544e986c9041df2aafd， 名： 旋风}，{ 优先：3 name_lower ： 云脉冲串， _ ID： 5a0d85c6e986c9041df2ab12， PID： 5a0d8544e986c9041df2aafd， 名称： 云脉冲串}，{ 优先：3 name_lower： 油菜 ， _ ID： 5a0d863ce986c9041df2ab14， PID： 5a0d8544e986c9041df2aafe， 名： 强奸}，{ 优先：3， name_lower： 绑架， _ ID： 5a0d863ce986c9041df2ab15， PID ： 5a0d8544e986c9041df2aafe， 名： 绑架}，{ 优先：3， name_lower： 劫持， _ ID： 5a0d863ce986c9041df2ab16， PID： 5a0d8544e986c9041df2aafe， 名 ： 劫持}，{ 优先：3， name_lower： 恐怖袭击， _ ID： 5a0d863ce986c9041df2ab17， PID： 5a0d8544e986c9041df2aafe， 名： 恐怖攻击}， { 优先：3， name_lower： 炸弹爆炸， _ ID： 5a0d863ce986c9041df2ab18， PID： 5a0d8544e986c9041df2aafe， 名：炸弹爆炸}，{ 优先 ：3， name_lower ： harrasment /滥用  _ ID： 5a0d863ce986c9041df2ab1c， PID： 5a0d8544e986c9041df2aafe， 名： harrasment /滥用}，{ 优先3， name_lower ： 嫁妆  _ ID： 5a0d863ce986c9041df2ab1d， PID： 5a0d8544e986c9041df2aafe， 名： 嫁妆}，{ 优先：3， name_lower： 荣誉-killing， _ ID： 5a0d863ce986c9041df2ab20， PID： 5a0d8544e986c9041df2aafe， 名： 名誉杀人}，{ 优先：3， name_lower： 谋杀， _ ID： 5a0d863ce986c9041df2ab21， PID： 5a0d8544e986c9041df2aafe， 名： 谋杀}，{ 优先：3， name_lower： sucide， _ ID： 5a0d8652e986c9041df2ab26， PID：5a0d8544e986c9041df2aafe ， 名： sucide}，{ 优先：3， name_lower： 道路， _ ID： 5a0d8670e986c9041df2ab28， PID： 5a016637e986c90418e96ee9， 名： 道路} { 优先：3， name_lower： 交通， _ ID： 5a0d868ce986c9041df2ab2a， PID： 5a0d8670e986c9041df2ab28， 名： 交通}，{ 优先：3，name_lower ： 状态， _ ID： 5a0d868ce986c9041df2ab2b， PID： 5a0d8670e986c9041df2ab28， 名： 状态}，{ 优先：3 name_lower： 国家， _ ID： 5a0d868ce986c9041df2ab2c， PID： 5a0d8670e986c9041df2ab28， 名： 国家}，{ 优先：3， name_lower： 预算， _id ： 5a0d868ce986c9041df2ab2d， PID： 5a0d8670e986c9041df2ab28， 名： 预算}，{ 优先：3， name_lower： 意外， _ ID： 5a0d868ce986c9041df2ab2e， PID ： 5a0d8670e986c9041df2ab28， 名： 意外}，{ 优先：3， name_lower： 贩卖， _ ID： 5a0d869fe986c9041df2ab34， PID： 5a0d8544e986c9041df2aafe， 名：贩卖 }，{ 优先 ：3， name_lower ： 动物， _ ID： 5a0d86aae986c9041df2ab36， PID： 5a0d869fe986c9041df2ab34， 名： 动物}，{ 优先：3 name_lower： 人， _ ID： 5a0d86aae986c9041df2ab37， PID： 5a0d869fe986c9041df2ab34， 名： 人}，{ 优先：3， name_lower： 铁路， _id ： 5a0d86c9e986c9041df2ab3a， PID： 5a016637e986c90418e96ee9， 名： 铁路}，{ 优先：3， name_lower： 北， _ ID： 5a0d86d6e986c9041df2ab3c， PID ： 5a0d86c9e986c9041df2ab3a， 名： 北}，{ 优先：3， name_lower： 东， _ ID ： 5a0d86d6e986c9041df2ab3d， PID： 5a0d86c9e986c9041df2ab3a， 名： 东}，{ 优先：3， name_lower： 南， _ ID： 5a0d86d6e986c9041df2ab3e， PID： 5a0d86c9e986c9041df2ab3a， 名： 南}，{ 优先：3， name_lower： 西部大开发， _ ID： 5a0d86d6e986c9041df2ab3f， PID： 5a0d86c9e986c9041df2ab3a， 名： 西 }，{ 优先：3， name_lower： 中央， _ ID： 5a0d86d6e986c9041df2ab40， PID： 5a0d86c9e986c9041df2ab3a， 名： 中央}，{ 优先：3 name_lower ： 预算， _ ID： 5a0d86e2e986c9041df2ab46， PID： 5a0d86c9e986c9041df2ab3a， 名： 预算}，{ 优先：3， name_lower： 自然， _ ID ： 5a12c1c7e986c90418cefdfd， PID： 5a016637e986c90418e96ee9， 名： 自然}，{ 优先：3， name_lower： 动物， _ ID： 5a12c1d8e986c90418cefdff， PID： 5a12c1c7e986c90418cefdfd， 名： 动物}，{ 优先：3， name_lower： 人类， _ ID： 5a12c1d8e986c90418cefe00， PID： 5a12c1c7e986c90418cefdfd， 名： 人 }，{priority：3，name_lower：两栖动物，_ id：5a12c277e986c90418cefe03，pid：5a12c 1d8e986c90418cefdff，name：两栖动物}，{priority：3，name_lower：tresstrial animals，_ id：5a12c277e986c90418cefe04，pid：5a12c1d8e986c90418cefdff，name： Tresstrial animals}，{priority：3，name_lower：aquatic animals，_ id：5a12c277e986c90418cefe05，pid：5a12c1d8e986c90418cefdff，name：Aquatic animals}，{priority ：3，name_lower：arial animals，_ id：5a12c277e986c90418cefe06，pid：5a12c1d8e986c90418cefdff，name：Arial animals}，{priority：3，name_lower： 儿童， _ ID： 5a12c2c7e986c90418cefe0f， PID： 5a12c1d8e986c90418cefe00， 名： 孩子}，{ 优先：3， name_lower： 宝贝， _ ID：5a12c2c7e986c90418cefe10 ， PID： 5a12c1d8e986c90418cefe00， 名： 宝贝}，{ 优先：3， name_lower： 成人， _ ID： 5a12c2c7e986c90418cefe11， PID： 5a12c1d8e986c90418cefe00 名： 成人}，{ 优先：3， name_lower： 女， _ ID： 5a12c2d4e986c90418cefe15， PID： 5a12c2c7e986c90418cefe11， 名： 女}，{ 优先：3， name_lower： 男， _ ID： 5a12c2d4e986c90418cefe16，p ID ： 5a12c2c7e986c90418cefe11\" ， 名： 男}，{ 优先：3， name_lower： 男， _ ID： 5a12c2d9e986c90418cefe19， PID： 5a12c2c7e986c90418cefe10， 名 ： 男}，{ 优先：3， name_lower： 女， _ ID： 5a12c2d9e986c90418cefe1a， PID： 5a12c2c7e986c90418cefe10， 名： 女}，{ 优先 3， name_lower： 女， _ ID： 5a12c2dde986c90418cefe1d， PID： 5a12c2c7e986c90418cefe0f， 名： 女}，{ 优先：3， name_lower： 男 ， _ ID： 5a12c2dde986c90418cefe1e， PID： 5a12c2c7e986c90418cefe0f， 名： 男}，{ 优先：3， name_lower： 政治， _ ID： 5a12c2ebe986c90418cefe21， PID ： 5a016637e986c90418e96ee9\" ， 名： 政治学}，{ 优先：3， name_lower： 人民党， _ ID： 5a12c321e986c90418cefe23， PID： 5a12c2ebe986c90418cefe21， 名 ： 人民党}，{ 优先：3， name_lower： aidmk， _ ID： 5a12c321e986c90418cefe24， PID： 5a12c2ebe986c90418cefe21， 名： AIDMK}，{ 优先 3， name_lower： BSP， _ ID： 5a12c321e986c90418cefe25， PID： 5a12c2ebe986c90418cefe21， 名： BSP}，{ 优先：3，名_下 ： 十七大， _ ID： 5a12c321e986c90418cefe26， PID： 5a12c2ebe986c90418cefe21， 名： 国会}，{ 优先：3， name_lower： AAP， _ ID ： 5a12c321e986c90418cefe27， PID： 5a12c2ebe986c90418cefe21， 名： AAP}，{ 优先：3， name_lower： DMK， _ ID： 5a12c321e986c90418cefe28， PID： 5a12c2ebe986c90418cefe21\" ， 名： DMK}，{ 优先：3， name_lower： 其他， _ ID： 5a12c322e986c90418cefe2b， PID： 5a12c2ebe986c90418cefe21， 名： 其他 }，{ 优先：3， name_lower： 政府， _ ID： 5a12c32fe986c90418cefe31， PID： 5a016637e986c90418e96ee9， 名： 政府}，{ 优先：3 name_lower：州政府，_ id：5a12c33be986c90418cefe33，pid：5a12c32fe986c90418cefe31，name：州政府}，{priority：3，name_lower：中央政府， _id：5a12c33be986c90418cefe34，pid：5a12c32fe986c90418cefe31，name：中央政府}，{priority：3，name_lower：总统规则，_ id：5a12c361e98​​6c90418cefe39， pid：5a12c32fe986c90418cefe31，name：总统统治}，{priori TY ：3， name_lower ： 总统  _ ID： 5a12c38fe986c90418cefe3b， PID： 5a12c33be986c90418cefe34， 名： 总统}，{ 优先：3， name_lower：选举  _ ID： 5a12c38fe986c90418cefe3c， PID： 5a12c33be986c90418cefe34， 名： 选举}，{ 优先：3， name_lower： 总理， _ ID： 5a12c38fe986c90418cefe3d  PID： 5a12c33be986c90418cefe34， 名： 总理}，{ 优先：3， name_lower： parilament， _ ID： 5a12c38fe986c90418cefe3e， PID： 5a12c33be986c90418cefe34\" ， 名： Parilament}，{ 优先：3， name_lower： MPS， _ ID： 5a12c390e986c90418cefe3f， PID： 5a12c33be986c90418cefe34， 名： MPS }，{ 优先：3， name_lower： 工作重点， _ ID： 5a12c390e986c90418cefe40， PID： 5a12c33be986c90418cefe34， 名： 工作重点}，{ 优先：3 name_lower ： 家部长  _ ID： 5a12c3d5e986c90418cefe47， PID： 5a12c33be986c90418cefe33， 名： 家部长}，{ 优先：3， name_lower： railway-部长， _ ID： 5a12c3d5e986c90418cefe49， PID： 5a12c33be986c90418cefe33， 名： 铁路部长 }，{ 优先：3， name_lower： MPS， _ ID： 5a12c3d5e986c90418cefe4a， PID： 5a12c33be986c90418cefe33， 名： 国会议员}，{ 优先：3 name_lower ： 总督， _ ID： 5a12c3d5e986c90418cefe4b， PID： 5a12c33be986c90418cefe33， 名： 都督}，{ 优先：3， name_lower： 选举， _ ID ： 5a12c3d5e986c90418cefe4c， PID： 5a12c33be986c90418cefe33， 名： 选举}，{ 优先：3， name_lower： 工作重点， _ ID： 5a12c3d5e986c90418cefe4d， PID： 5a12c33be986c90418cefe33\" ， 名： 工作重点}，{ 优先：3， name_lower： cheif部长， _ ID： 5a12c3d5e986c90418cefe4e， PID： 5a12c33be986c90418cefe33， 名： Cheif-Minister}]}]函数getParentObject（parentObj）{var allParentObject = parentObj.filter（function（o）{return o.parent == 0; }）; return allParentObject;} function getAllParentIds（allParentObject）{var allActualParentIds = allParentObject.map（obj => obj._id）; return allActualParentIds;} function getAllSubChilds（subchild）{var subChildObject = subchild.filter（function（o，i）{return o._id == subchild [i] ._ id;}）; return subChildObject; function findNestedObjects（data，allParentObject，ActualParentId）{var firstChild = getParentObject（data）; var allActualParentIds = getAllParentIds（firstChild）; var obj = {}; //console.log('all childs'，JSON.stringify（firstChild））; if（firstChild.length）{// allParentObject.nodes = firstChild; var subChildObject = getAllSubChilds（firstChild）; console.log（'sub child object'，JSON.stringify（subChildObject））; var subChildIds = getAllParentIds（subChildObject）; //onsole.log（'所有父节点'，JSON.stringify（allParentObject））; // findNestedObjects（数据，则firstChild，ActualParentId）; } else {allParentObject.nodes = []; var allParentObject = getParentObject（data）; var allActualParentIds = getAllParentIds（allParentObject）; for（var i = 0; i< allActualParentIds.length; i ++）{findNestedObjects（data，allParentObject [i]，allActualParentIds [i]）; }  
 < script src =https：// ajax .googleapis.com / AJAX /库/ jquery的/ 2.1.1 / jquery.min.js>< /脚本>



查看完整数据：



请提前帮助我！

解决方案

这是一个简单的递归算法，用于构建这个树（我创建了一个简化的数据版本，但一切似乎都运行良好）：



  function setNodes（obj，data）{obj.nodes = data.filter（ x => x.pid === obj._id）;} function populateLevel（arr，data）{arr.forEach（x => { setNodes（x，data）; if（x.nodes.length）{populateLevel（x.nodes，data）; }}};} const json = [{categories：[{_ id：1，pid：0，name：general-categories}，{priority：3， name_lower：悲剧，_ id：2，pid：1，名称：悲剧}，{优先级：3，name_lower：自然，_ id ：3，pid：1，name：natural}，{priority：3，name_lower：human，_ id：4，pid： 2，名称：人类}，{优先级：3，name_lower：地震，_ id：5，pid：2，名称：地震}，{priority：3，name_lower：floods，_ id：6，pid：3，name：floods}，{priority：3， name_lower：干旱，_ id：7，pid：3，名称：干旱}，{优先级：3，name_lower：山体滑坡，_ id ：8，pid：6，name：landslides}，{priority：3，name_lower：tsunami，_ id：9， pid：6，name：tsunami}]}]; const data = json [0] .categories; const startingLevel = data.filter（x => x.pid ==='0'）; populateLevel（startingLevel，data）; console.log（startingLevel）;



这是一个jsfiddle：


I have problem in converting simple json into json tree

The steps i need to follow are:

  1. finding parent having pid:0 will have some _id:'5a016637e986c90418e96ee9'

  2. finding above _id:5a016637e986c90418e96ee9 as pid in other object for example: will result in _id:5a0d852ce986c9041df2aafb and some others etc

  3. finding above _id i,e 5a0d852ce986c9041df2aafb so on..

Here is my json: https://jsfiddle.net/eabangalore/26gxm6dz/5/

I want to convert my json to like below one:

[
   {
    "_id": "5a016637e986c90418e96ee9",
    "pid": "0",
    "name": "general-categories",
    "nodes":[
         {
            "priority": 3,
            "name_lower": "tragedy",
            "_id": "5a0d852ce986c9041df2aafb",
            "pid": "5a016637e986c90418e96ee9",
            "name": "Tragedy",

          "nodes":[
                {
                "priority": 3,
                "name_lower": "natural",
                "_id": "5a0d8544e986c9041df2aafd",
                "pid": "5a0d852ce986c9041df2aafb",
                "name": "natural",

                "nodes":[

                   {
                      "priority": 3,
                      "name_lower": "earthquake",
                      "_id": "5a0d85c6e986c9041df2ab02",
                      "pid": "5a0d8544e986c9041df2aafd",
                      "name": "earthquake",
                      "nodes":[]  // so on ............
                    }
                ]
              }
          ]
        }
    ]
  }
]

see the output json here this how i want to convert my json:https://jsfiddle.net/Resendra/0uzmoy34/

see fiddle with full data: https://jsfiddle.net/eabangalore/fzonzxjt/73/

this is what i have tried(with half sample data):

var data = [{"categories":[{"_id":"5a016637e986c90418e96ee9","pid":"0","name":"general-categories"},{"priority":3,"name_lower":"tragedy","_id":"5a0d852ce986c9041df2aafb","pid":"5a016637e986c90418e96ee9","name":"Tragedy"},{"priority":3,"name_lower":"natural","_id":"5a0d8544e986c9041df2aafd","pid":"5a0d852ce986c9041df2aafb","name":"natural"},{"priority":3,"name_lower":"humans","_id":"5a0d8544e986c9041df2aafe","pid":"5a0d852ce986c9041df2aafb","name":"humans"},{"priority":3,"name_lower":"earthquake","_id":"5a0d85c6e986c9041df2ab02","pid":"5a0d8544e986c9041df2aafd","name":"earthquake"},{"priority":3,"name_lower":"floods","_id":"5a0d85c6e986c9041df2ab03","pid":"5a0d8544e986c9041df2aafd","name":"floods"},{"priority":3,"name_lower":"drought","_id":"5a0d85c6e986c9041df2ab04","pid":"5a0d8544e986c9041df2aafd","name":"drought"},{"priority":3,"name_lower":"landslides","_id":"5a0d85c6e986c9041df2ab05","pid":"5a0d8544e986c9041df2aafd","name":"landslides"},{"priority":3,"name_lower":"tsunami","_id":"5a0d85c6e986c9041df2ab07","pid":"5a0d8544e986c9041df2aafd","name":"tsunami"},{"priority":3,"name_lower":"forest-fire","_id":"5a0d85c6e986c9041df2ab09","pid":"5a0d8544e986c9041df2aafd","name":"forest-fire"},{"priority":3,"name_lower":"strom","_id":"5a0d85c6e986c9041df2ab0a","pid":"5a0d8544e986c9041df2aafd","name":"strom"},{"priority":3,"name_lower":"cyclone","_id":"5a0d85c6e986c9041df2ab0f","pid":"5a0d8544e986c9041df2aafd","name":"cyclone"},{"priority":3,"name_lower":"cloud-burst","_id":"5a0d85c6e986c9041df2ab12","pid":"5a0d8544e986c9041df2aafd","name":"cloud-burst"},{"priority":3,"name_lower":"rape","_id":"5a0d863ce986c9041df2ab14","pid":"5a0d8544e986c9041df2aafe","name":"rape"},{"priority":3,"name_lower":"kidnap","_id":"5a0d863ce986c9041df2ab15","pid":"5a0d8544e986c9041df2aafe","name":"kidnap"},{"priority":3,"name_lower":"hijack","_id":"5a0d863ce986c9041df2ab16","pid":"5a0d8544e986c9041df2aafe","name":"hijack"},{"priority":3,"name_lower":"terror-attack","_id":"5a0d863ce986c9041df2ab17","pid":"5a0d8544e986c9041df2aafe","name":"terror-attack"},{"priority":3,"name_lower":"bomb-blast","_id":"5a0d863ce986c9041df2ab18","pid":"5a0d8544e986c9041df2aafe","name":"bomb-blast"},{"priority":3,"name_lower":"harrasment/abuse","_id":"5a0d863ce986c9041df2ab1c","pid":"5a0d8544e986c9041df2aafe","name":"harrasment/abuse"},{"priority":3,"name_lower":"dowry","_id":"5a0d863ce986c9041df2ab1d","pid":"5a0d8544e986c9041df2aafe","name":"dowry"},{"priority":3,"name_lower":"honour-killing","_id":"5a0d863ce986c9041df2ab20","pid":"5a0d8544e986c9041df2aafe","name":"honour-killing"},{"priority":3,"name_lower":"murder","_id":"5a0d863ce986c9041df2ab21","pid":"5a0d8544e986c9041df2aafe","name":"murder"},{"priority":3,"name_lower":"sucide","_id":"5a0d8652e986c9041df2ab26","pid":"5a0d8544e986c9041df2aafe","name":"sucide"},{"priority":3,"name_lower":"roads","_id":"5a0d8670e986c9041df2ab28","pid":"5a016637e986c90418e96ee9","name":"Roads"},{"priority":3,"name_lower":"traffic","_id":"5a0d868ce986c9041df2ab2a","pid":"5a0d8670e986c9041df2ab28","name":"traffic"},{"priority":3,"name_lower":"state","_id":"5a0d868ce986c9041df2ab2b","pid":"5a0d8670e986c9041df2ab28","name":"state"},{"priority":3,"name_lower":"national","_id":"5a0d868ce986c9041df2ab2c","pid":"5a0d8670e986c9041df2ab28","name":"national"},{"priority":3,"name_lower":"budget","_id":"5a0d868ce986c9041df2ab2d","pid":"5a0d8670e986c9041df2ab28","name":"budget"},{"priority":3,"name_lower":"accidents","_id":"5a0d868ce986c9041df2ab2e","pid":"5a0d8670e986c9041df2ab28","name":"accidents"},{"priority":3,"name_lower":"trafficking","_id":"5a0d869fe986c9041df2ab34","pid":"5a0d8544e986c9041df2aafe","name":"trafficking"},{"priority":3,"name_lower":"animals","_id":"5a0d86aae986c9041df2ab36","pid":"5a0d869fe986c9041df2ab34","name":"animals"},{"priority":3,"name_lower":"human","_id":"5a0d86aae986c9041df2ab37","pid":"5a0d869fe986c9041df2ab34","name":"human"},{"priority":3,"name_lower":"railways","_id":"5a0d86c9e986c9041df2ab3a","pid":"5a016637e986c90418e96ee9","name":"Railways"},{"priority":3,"name_lower":"north","_id":"5a0d86d6e986c9041df2ab3c","pid":"5a0d86c9e986c9041df2ab3a","name":"North"},{"priority":3,"name_lower":"east","_id":"5a0d86d6e986c9041df2ab3d","pid":"5a0d86c9e986c9041df2ab3a","name":"east"},{"priority":3,"name_lower":"south","_id":"5a0d86d6e986c9041df2ab3e","pid":"5a0d86c9e986c9041df2ab3a","name":"south"},{"priority":3,"name_lower":"west","_id":"5a0d86d6e986c9041df2ab3f","pid":"5a0d86c9e986c9041df2ab3a","name":"west"},{"priority":3,"name_lower":"central","_id":"5a0d86d6e986c9041df2ab40","pid":"5a0d86c9e986c9041df2ab3a","name":"central"},{"priority":3,"name_lower":"budget","_id":"5a0d86e2e986c9041df2ab46","pid":"5a0d86c9e986c9041df2ab3a","name":"budget"},{"priority":3,"name_lower":"nature","_id":"5a12c1c7e986c90418cefdfd","pid":"5a016637e986c90418e96ee9","name":"Nature"},{"priority":3,"name_lower":"animals","_id":"5a12c1d8e986c90418cefdff","pid":"5a12c1c7e986c90418cefdfd","name":"Animals"},{"priority":3,"name_lower":"humans","_id":"5a12c1d8e986c90418cefe00","pid":"5a12c1c7e986c90418cefdfd","name":"Humans"},{"priority":3,"name_lower":"amphibians animals","_id":"5a12c277e986c90418cefe03","pid":"5a12c1d8e986c90418cefdff","name":"Amphibians animals"},{"priority":3,"name_lower":"tresstrial animals","_id":"5a12c277e986c90418cefe04","pid":"5a12c1d8e986c90418cefdff","name":"Tresstrial animals"},{"priority":3,"name_lower":"aquatic animals","_id":"5a12c277e986c90418cefe05","pid":"5a12c1d8e986c90418cefdff","name":"Aquatic animals"},{"priority":3,"name_lower":"arial animals","_id":"5a12c277e986c90418cefe06","pid":"5a12c1d8e986c90418cefdff","name":"Arial animals"},{"priority":3,"name_lower":"child","_id":"5a12c2c7e986c90418cefe0f","pid":"5a12c1d8e986c90418cefe00","name":"Child"},{"priority":3,"name_lower":"baby","_id":"5a12c2c7e986c90418cefe10","pid":"5a12c1d8e986c90418cefe00","name":"Baby"},{"priority":3,"name_lower":"adult","_id":"5a12c2c7e986c90418cefe11","pid":"5a12c1d8e986c90418cefe00","name":"Adult"},{"priority":3,"name_lower":"female","_id":"5a12c2d4e986c90418cefe15","pid":"5a12c2c7e986c90418cefe11","name":"female"},{"priority":3,"name_lower":"male","_id":"5a12c2d4e986c90418cefe16","pid":"5a12c2c7e986c90418cefe11","name":"male"},{"priority":3,"name_lower":"male","_id":"5a12c2d9e986c90418cefe19","pid":"5a12c2c7e986c90418cefe10","name":"male"},{"priority":3,"name_lower":"female","_id":"5a12c2d9e986c90418cefe1a","pid":"5a12c2c7e986c90418cefe10","name":"female"},{"priority":3,"name_lower":"female","_id":"5a12c2dde986c90418cefe1d","pid":"5a12c2c7e986c90418cefe0f","name":"female"},{"priority":3,"name_lower":"male","_id":"5a12c2dde986c90418cefe1e","pid":"5a12c2c7e986c90418cefe0f","name":"male"},{"priority":3,"name_lower":"politics","_id":"5a12c2ebe986c90418cefe21","pid":"5a016637e986c90418e96ee9","name":"Politics"},{"priority":3,"name_lower":"bjp","_id":"5a12c321e986c90418cefe23","pid":"5a12c2ebe986c90418cefe21","name":"BJP"},{"priority":3,"name_lower":"aidmk","_id":"5a12c321e986c90418cefe24","pid":"5a12c2ebe986c90418cefe21","name":"AIDMK"},{"priority":3,"name_lower":"bsp","_id":"5a12c321e986c90418cefe25","pid":"5a12c2ebe986c90418cefe21","name":"BSP"},{"priority":3,"name_lower":"congress","_id":"5a12c321e986c90418cefe26","pid":"5a12c2ebe986c90418cefe21","name":"Congress"},{"priority":3,"name_lower":"aap","_id":"5a12c321e986c90418cefe27","pid":"5a12c2ebe986c90418cefe21","name":"AAP"},{"priority":3,"name_lower":"dmk","_id":"5a12c321e986c90418cefe28","pid":"5a12c2ebe986c90418cefe21","name":"DMK"},{"priority":3,"name_lower":"others","_id":"5a12c322e986c90418cefe2b","pid":"5a12c2ebe986c90418cefe21","name":"Others"},{"priority":3,"name_lower":"government","_id":"5a12c32fe986c90418cefe31","pid":"5a016637e986c90418e96ee9","name":"Government"},{"priority":3,"name_lower":"state government","_id":"5a12c33be986c90418cefe33","pid":"5a12c32fe986c90418cefe31","name":"State government"},{"priority":3,"name_lower":"central government","_id":"5a12c33be986c90418cefe34","pid":"5a12c32fe986c90418cefe31","name":"Central government"},{"priority":3,"name_lower":"president rule","_id":"5a12c361e986c90418cefe39","pid":"5a12c32fe986c90418cefe31","name":"President rule"},{"priority":3,"name_lower":"president","_id":"5a12c38fe986c90418cefe3b","pid":"5a12c33be986c90418cefe34","name":"President"},{"priority":3,"name_lower":"elections","_id":"5a12c38fe986c90418cefe3c","pid":"5a12c33be986c90418cefe34","name":"Elections"},{"priority":3,"name_lower":"prime-minister","_id":"5a12c38fe986c90418cefe3d","pid":"5a12c33be986c90418cefe34","name":"Prime-Minister"},{"priority":3,"name_lower":"parilament","_id":"5a12c38fe986c90418cefe3e","pid":"5a12c33be986c90418cefe34","name":"Parilament"},{"priority":3,"name_lower":"mps","_id":"5a12c390e986c90418cefe3f","pid":"5a12c33be986c90418cefe34","name":"MPS"},{"priority":3,"name_lower":"mla","_id":"5a12c390e986c90418cefe40","pid":"5a12c33be986c90418cefe34","name":"MLA"},{"priority":3,"name_lower":"home-minister","_id":"5a12c3d5e986c90418cefe47","pid":"5a12c33be986c90418cefe33","name":"home-minister"},{"priority":3,"name_lower":"railway-minister","_id":"5a12c3d5e986c90418cefe49","pid":"5a12c33be986c90418cefe33","name":"railway-minister"},{"priority":3,"name_lower":"mps","_id":"5a12c3d5e986c90418cefe4a","pid":"5a12c33be986c90418cefe33","name":"MPs"},{"priority":3,"name_lower":"governer","_id":"5a12c3d5e986c90418cefe4b","pid":"5a12c33be986c90418cefe33","name":"Governer"},{"priority":3,"name_lower":"elections","_id":"5a12c3d5e986c90418cefe4c","pid":"5a12c33be986c90418cefe33","name":"Elections"},{"priority":3,"name_lower":"mla","_id":"5a12c3d5e986c90418cefe4d","pid":"5a12c33be986c90418cefe33","name":"MLA"},{"priority":3,"name_lower":"cheif-minister","_id":"5a12c3d5e986c90418cefe4e","pid":"5a12c33be986c90418cefe33","name":"Cheif-Minister"}]}]



function getParentObject(parentObj){

     var allParentObject = parentObj.filter(function(o){
        return o.parent == 0;
     });

     return allParentObject;
}

function getAllParentIds(allParentObject){

    var allActualParentIds = allParentObject.map(obj =>  obj._id);

    return allActualParentIds;
}

function getAllSubChilds(subchild){

    var subChildObject = subchild.filter(function(o,i){
        return o._id == subchild[i]._id;
     });

     return subChildObject;
 }


function findNestedObjects(data,allParentObject,ActualParentId){

   var firstChild = getParentObject(data);

   var allActualParentIds = getAllParentIds(firstChild);

   var obj = {};


   //console.log('all childs', JSON.stringify(firstChild));


   if(firstChild.length){

        //allParentObject.nodes = firstChild;

        var subChildObject = getAllSubChilds(firstChild);

        console.log('sub child object ',JSON.stringify(subChildObject));

        var subChildIds = getAllParentIds(subChildObject);

        //onsole.log('all parent nodes ',JSON.stringify(allParentObject));

        //findNestedObjects(data,firstChild,ActualParentId);
   }else{

      allParentObject.nodes = [];
   }

}

var allParentObject = getParentObject(data);

var allActualParentIds = getAllParentIds(allParentObject);


for(var i=0;i<allActualParentIds.length;i++){
  findNestedObjects(data,allParentObject[i],allActualParentIds[i]);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

see fiddle with full data: https://jsfiddle.net/eabangalore/fzonzxjt/73/

please help me thanks in advance!!!

解决方案

Here's a simple recursive algorythm for building this tree (I created a simplified version of your data but everything seems to be working fine):

function setNodes(obj, data) {
	obj.nodes = data.filter(x => x.pid === obj._id);
}

function populateLevel(arr, data) {
  arr.forEach(x => {
    setNodes(x, data);
    if (x.nodes.length) {
    	populateLevel(x.nodes, data);
    }
  });
}

const json = [{
  "categories": [
  	{
      "_id": "1",
      "pid": "0",
      "name": "general-categories"
    }, {
      "priority": 3,
      "name_lower": "tragedy",
      "_id": "2",
      "pid": "1",
      "name": "Tragedy"
    }, {
      "priority": 3,
      "name_lower": "natural",
      "_id": "3",
      "pid": "1",
      "name": "natural"
    }, {
      "priority": 3,
      "name_lower": "humans",
      "_id": "4",
      "pid": "2",
      "name": "humans"
    }, {
      "priority": 3,
      "name_lower": "earthquake",
      "_id": "5",
      "pid": "2",
      "name": "earthquake"
    }, {
      "priority": 3,
      "name_lower": "floods",
      "_id": "6",
      "pid": "3",
      "name": "floods"
    }, {
      "priority": 3,
      "name_lower": "drought",
      "_id": "7",
      "pid": "3",
      "name": "drought"
    }, {
      "priority": 3,
      "name_lower": "landslides",
      "_id": "8",
      "pid": "6",
      "name": "landslides"
    }, {
      "priority": 3,
      "name_lower": "tsunami",
      "_id": "9",
      "pid": "6",
      "name": "tsunami"
    }]
}];

const data = json[0].categories;
const startingLevel = data.filter(x => x.pid === '0');

populateLevel(startingLevel, data);

console.log(startingLevel);

Here's a jsfiddle: https://jsfiddle.net/ww71otLv/

这篇关于如何从简单的json制作所需的json树的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

08-24 17:19
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