javascript-返回具有唯一子项的父项，该子项与具有嵌套对象的对象数组中给定的搜索字符串匹配 [英] javascript - return parent with only child that matches given search string in array of objects with nested object

问题描述

这是

This is a follow up question from my previous question. From the answer I've received, I am able to search within nested object in an array of objects.

例如，请找到此小提琴.

var data = [
{
  'booking_name': 'gtec/1101822/lmikdy/ls-rmea/oss11',
  'asset_count': 2,
  'pdg': 'Invalid',
  'user_area': 'Invalid',
  'deployment_number': 'Invalid',
  'spoc': 'invalid',
  'release': 'Invalid',
  'start_date': '2017-06-12 00:00:00',
  'end_date': '2017-06-16 00:00:00',
  'asset_info': [
    {
      'bams_id': 'BAMS-1001423507',
      'hostname': 'GTVOSS11',
      'status': 10,
      'site_location': 'IEAT01 Tipperary',
      'rack_number': 'VIRTUAL RACK',
      'rack_u_position': 0,
      'manufacturer': 'EMC',
      'model': 'VM',

    },
    {
      'bams_id': 'BAMS-1001368001',
      'hostname': 'None',
      'status': 10,
      'site_location': 'IEAT01 Tipperary',
      'rack_number': 'VIRTUAL RACK',
      'rack_u_position': 0,
      'manufacturer': 'HP',
      'model': 'HP BL460C GEN8',

    }
],
'full_name': 'Invalid (invalid)',
'email_address': 'Invalid'
},
{
  'booking_name': 'gtec/1101822/lmikdy/ls-rmea/oss11',
  'asset_count': 2,
  'pdg': 'Invalid',
  'user_area': 'Invalid',
  'deployment_number': 'Invalid',
  'spoc': 'invalid',
  'release': 'Invalid',
  'start_date': '2017-06-12 00:00:00',
  'end_date': '2017-06-16 00:00:00',
  'asset_info': [
    {
      'bams_id': 'BAMS-1001423507',
      'hostname': 'GTVOSS11',
      'status': 10,
      'site_location': 'IEAT01 Tipperary',
      'rack_number': 'VIRTUAL RACK',
      'rack_u_position': 0,
      'manufacturer': 'EMC',
      'model': 'VM',

    }
],
'full_name': 'Invalid (invalid)',
'email_address': 'Invalid'
}];

在这里，当我搜索字符串'emc'时，该函数返回两个正确的对象.但是作为制造商"的"emc"在子对象中.并且每个子对象都不满足此条件.我正在寻找的结果，例如'emc'，它应该返回2个父对象.第一个父对象应该只有一个子对象(另一个子对象的制造商为"hp").第二个父对象应该有一个孩子，因为它与搜索字符串匹配.

Here when I search for a string 'emc', the function returns two objects which is correct. But 'emc' as 'manufacturer' is in child object. And every child object does not satisfies this condition. The result I am looking for, for example 'emc', it should return 2 parent objects. First parent object should have only one child (the other child has 'hp' as manufacturer). Second parent object should have one child as it matches the search string.

我试图用搜索结果创建一个新对象，但无法使其正常工作.

I tried to make a new object with search result but couldn't make it work.

如何返回唯一满足给定搜索字符串的子对象的父对象?

这是关于我之前的问题的聊天记录可以帮助您了解问题和要求.

Here is the chatlog on my previous question which can help to understand the problem and requirement.

推荐答案

您可以使用迭代和递归方法，并返回检查结果，并在子项与搜索值匹配时构建新的对象和数组.

You could use an iterative and recursive approach and return the result of the check and build new objects and arrays if the children matches the search value.

function getValue(item) {
    if (Array.isArray(item)) {
        return item.reduce(iterA, undefined);
    }
    if (item && typeof item === 'object') {
        return iterO(item);
    }
    if (typeof item !== 'object' && item.toString().toLowerCase().indexOf(search) !== -1) {
        return item;
    }
}

function iterO(o) {
    var temp = Object.keys(o).reduce(function (r, k) {
            var value = getValue(o[k]);
            if (value) {
                r = r || {};
                r[k] = value;
            }
            return r;
        }, undefined);

    if (temp) {
        Object.keys(o).forEach(function (k) {
            if (!(k in temp)) {
                temp[k] = o[k];
            }
        });
    }
    return temp;
}

function iterA(r, a) {
    var value = getValue(a);
    if (value) {
        r = r || [];
        r.push(value);
    }
    return r;
}

var data = [{ booking_name: "gtec/1101822/lmikdy/ls-rmea/oss11", asset_count: 2, pdg: "Invalid", user_area: "Invalid", deployment_number: "Invalid", spoc: "invalid", release: "Invalid", start_date: "2017-06-12 00:00:00", end_date: "2017-06-16 00:00:00", asset_info: [{ bams_id: "BAMS-1001423507", hostname: "GTVOSS11", status: 10, site_location: "IEAT01 Tipperary", rack_number: "VIRTUAL RACK", rack_u_position: 0, manufacturer: "EMC", model: "VM" }, { bams_id: "BAMS-1001368001", hostname: "None", status: 10, site_location: "IEAT01 Tipperary", rack_number: "VIRTUAL RACK", rack_u_position: 0, manufacturer: "HP", model: "HP BL460C GEN8" }], full_name: "Invalid (invalid)", email_address: "Invalid" }, { booking_name: "gtec/1101822/lmikdy/ls-rmea/oss11", asset_count: 2, pdg: "Invalid", user_area: "Invalid", deployment_number: "Invalid", spoc: "invalid", release: "Invalid", start_date: "2017-06-12 00:00:00", end_date: "2017-06-16 00:00:00", asset_info: [{ bams_id: "BAMS-1001423507", hostname: "GTVOSS11", status: 10, site_location: "IEAT01 Tipperary", rack_number: "VIRTUAL RACK", rack_u_position: 0, manufacturer: "EMC", model: "VM" }], full_name: "Invalid (invalid)", email_address: "Invalid" }],
    search = 'emc',
    result = data.reduce(iterA, undefined);

console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

这篇关于javascript-返回具有唯一子项的父项，该子项与具有嵌套对象的对象数组中给定的搜索字符串匹配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IT屋！