Json - 树数据格式

如何解决Json - 树数据格式

我正在尝试格式化 json reposnse 以使其适用于 JStree

这里是 url json 响应

{
  "items": [
    { "id": 1,"parent_id": 0,"name": "Root Catalog" },{ "id": 2,"parent_id": 1,"name": "Default Category" },{ "id": 3,"parent_id": 2,"name": "category1" },{ "id": 5,"parent_id": 3,"name": "Sub1_category1" },{ "id": 6,"name": "Sub2_category1" },{ "id": 11,"name": "category2" },{ "id": 12,"name": "category3" },{ "id": 14,"parent_id": 12,"name": "Sub1_category3" },{ "id": 15,"name": "Sub1_category4" }
  ]
}

这是我想要得到的回应：

[
  { 'id': '1','parent': '#','text': 'Root Catalog' },{ 'id': '2','parent': '1','text': 'Default Category' },{ 'id': '3','parent': '2','text': 'category1' },{ 'id': '5','parent': '3','text': 'Sub1_category1' },{ 'id': '6','text': 'Sub2_category1' },{ 'id': '11','text': 'category2' },{ 'id': '12','text': 'category3' },{ 'id': '14','parent': '12','text': 'Sub1_category3' },{ 'id': '15','text': 'Sub2_category3' },]

这是我的看法：

let test = {
  "items": [
    { "id": 1,"name": "Sub1_category4" }
  ]
}

function formatData(itemsList) {
  let formatOutput = [];
  for (item of itemsList.items) {
    if (item.parent_id > 0) {
      if (item.parent_id !== 1 && typeof formatOutput[item.parent_id] === 'undefined') {
        formatOutput[item.parent_id] = {
          "parent": item.parent_id,"id": item.id,"text": null,"children": [
            {
              id: item.id,text: item.name,parent: item.parent_id
            }
          ]
        }
      } else if (item.parent_id !== 1) {
        formatOutput[item.parent_id].children.push({
          id: item.id,parent: item.parent_id
        })
      }
    }
  }
  for (item of itemsList.items) {
    if (typeof formatOutput[item.id] === 'object') {
      formatOutput[item.id].text = item.name
    }
  }
  return formatOutput.filter(val => val)
}

console.log(formatData(test))

jsfiddle

2 个问题：

1.Json 未格式化为 jstree 要求

2. 键“id”和“parent”的值没有被字符串化

非常感谢您能提供的任何帮助。

解决方法

我无法理解您的所有逻辑，但我希望此代码可以帮助您。

const test =      {"items":[
    {"id":1,"parent_id":0,"name":"Root Catalog"},{"id":2,"parent_id":1,"name":"Default Category"},{"id":3,"parent_id":2,"name":"category1"},{"id":5,"parent_id":3,"name":"Sub1_category1"},{"id":6,"name":"Sub2_category1"},{"id":11,"name":"category2"},{"id":12,"name":"category3"},{"id":14,"parent_id":12,"name":"Sub1_category3"},{"id":15,"name":"Sub1_category4"}
    ]
}

   
const result = test.items.map(x =>{
    return {
        id: x.id === 1 ? "#" : x.id,// if the id of the element is 1 put # else x.id
        parent: x.parent_id,text: x.name
    }
})

console.log(result);