How to get array of unique objects with conditions? - javascript

I have an array of objects.
I need to get an array with unique website name with newest date.
Sample data
"data" : [
{
"position" : 2,
"website" : "abc.com",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 3,
"website" : "qwe.com",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 1,
"website" : "qwe.com",
"owned" : false,
"date" : "2020-04-06",
"dateTime" : ISODate("2020-04-06T00:00:00.000Z")
},
{
"position" : 6,
"website" : "xyz.agency",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 4,
"website" : "opq.com",
"owned" : true,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 2,
"website" : "opq.com",
"owned" : true,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 4,
"website" : "opq.com",
"owned" : true,
"date" : "2020-04-01",
"dateTime" : ISODate("2020-04-01T00:00:00.000Z")
}
]
Based on datetTime, position and website. Need a mongoDB query or Javascript code. (Earlier its with dateTime and website)
(Extracting the object from which have highest date and unique website name with top position)
Expected response
"data" : [
{
"position" : 2,
"website" : "abc.com",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 3,
"website" : "qwe.com",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 6,
"website" : "xyz.agency",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
},
{
"position" : 2,
"website" : "opq.com",
"owned" : true,
"date" : "2020-05-06",
"dateTime" : ISODate("2020-05-06T00:00:00.000Z")
}
],


use forEach and build an object to handle dulicates and maintain only new date item.
Get Object.values from above object.
const uniq = (arr) => {
const res = {};
arr.forEach((item) => {
if (
!res[item.website] ||
new Date(item.dateTime) > new Date(res[item.website].dateTime)
) {
res[item.website] = { ...item };
}
});
return Object.values(res);
};
// Update uniq2
const uniq2 = (arr) => {
const res = {};
arr.forEach((item) => {
if (!res[item.website]) {
res[item.website] = { ...item };
} else {
if (new Date(item.dateTime) > new Date(res[item.website].dateTime)) {
res[item.website].dateTime = item.dateTime;
}
if (item.position > res[item.website].position) {
res[item.website].position = item.position;
}
}
});
return Object.values(res);
};
const data2 = [
{
position: 2,
website: "abc.com",
owned: false,
date: "2020-05-06",
dateTime: "2020-05-06T00:00:00.000Z",
},
{
position: 3,
website: "qwe.com",
owned: false,
date: "2020-05-06",
dateTime: "2020-05-06T00:00:00.000Z",
},
{
position: 1,
website: "qwe.com",
owned: false,
date: "2020-04-06",
dateTime: "2020-04-06T00:00:00.000Z",
},
{
position: 6,
website: "xyz.agency",
owned: false,
date: "2020-05-06",
dateTime: "2020-05-06T00:00:00.000Z",
},
{
position: 1,
website: "opq.com",
owned: true,
date: "2020-05-06",
dateTime: "2020-05-06T00:00:00.000Z",
},
{
position: 2,
website: "opq.com",
owned: true,
date: "2020-05-06",
dateTime: "2020-05-06T00:00:00.000Z",
},
{
position: 3,
website: "opq.com",
owned: true,
date: "2020-04-01",
dateTime: "2020-04-01T00:00:00.000Z",
},
];
console.log(uniq2(data2));


In javascript you can reduce it:
var data = [ { "position" : 0, "website" : "abc.com", "owned" : false, "date" : "2020-05-06", "dateTime" : 'ISODate("2020-05-06T00:00:00.000Z")' }, { "position" : 0, "website" : "qwe.com", "owned" : false, "date" : "2020-05-06", "dateTime" : 'ISODate("2020-05-06T00:00:00.000Z")' }, { "position" : 0, "website" : "qwe.com", "owned" : false, "date" : "2020-04-06", "dateTime" : 'ISODate("2020-04-06T00:00:00.000Z")' }, { "position" : 0, "website" : "xyz.agency", "owned" : false, "date" : "2020-05-06", "dateTime" : 'ISODate("2020-05-06T00:00:00.000Z")' }, { "position" : 1, "website" : "opq.com", "owned" : true, "date" : "2020-05-06", "dateTime" : 'ISODate("2020-05-06T00:00:00.000Z")' }, { "position" : 1, "website" : "opq.com", "owned" : true, "date" : "2020-04-01", "dateTime" : 'ISODate("2020-04-01T00:00:00.000Z")' }];
var result = data.reduce((acc, elem)=>{
isPresent = acc.findIndex(k=>k.website==elem.website);
if(isPresent==-1){
acc.push(elem);
} else {
if(new Date(acc[isPresent].date) < new Date(elem.date)) acc[isPresent] = elem;
}
return acc;
},[]);
console.log(result);


Try this- It also takes into consideration when the object is duplicate and dateTime are same/equal :
var d = { "data" : [
{
"position" : 0,
"website" : "abc.com",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : "2020-05-06T00:00:00.000Z"
},
{
"position" : 0,
"website" : "qwe.com",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : "2020-05-06T00:00:00.000Z"
},
{
"position" : 0,
"website" : "xyz.agency",
"owned" : false,
"date" : "2020-05-06",
"dateTime" : "2020-05-06T00:00:00.000Z"
},
{
"position" : 1,
"website" : "opq.com",
"owned" : true,
"date" : "2020-05-06",
"dateTime" : "2020-05-06T00:00:00.000Z"
}
]
}
var filtered = d.data.filter((el,idx)=> {
let found = d.data.findIndex((e,i)=> e.website === el.website && idx !== i);
return found === -1 ? el:Date.parse(el.dateTime) ===
Date.parse((d.data[found]).dateTime) && (found < idx) ? el:
Date.parse(el.dateTime) <
Date.parse((d.data[found]).dateTime) ? el: false
});
console.log(filtered);

Related

Complex mongodb data how to update

I'm trying to update show_seats.showByDate.shows.showSeats.seat_details.values.seat_status
this my code .........................................................................................................................................................
db.seats.updateOne({'show_seats.showByDate.shows.showSeats.seat_details.values._id':"62a9e044ec028e60180fe28a"},{$set:{'show_seats.showByDate.shows.showSeats.seat_details.values.seat_status' : true}})
.........................................................................................................................................................
please say what did i wrong**
{
"_id" : ObjectId("62a43ac2d7213c7233cd1dee"),
"totalShowByDay" : "2",
"totalShowDays" : 4,
"movieId" : ObjectId("62953ba3cb6ae625ec9433e6"),
"screenId" : ObjectId("6293b9638dde2d92658d5513"),
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"show_seats" : [
{
"showByDate" : {
"ShowDate" : "2022-06-11",
"shows" : [
{
"showTime" : "2022-06-11T10:00",
"showSeats" : [
[
{
"category" : "CLASSIC",
"seat_details" : [
{
"key" : "A",
"values" : [
{
"_id" : ObjectId("62a43ac2d7213c7233cd14ee"),
"seat_number" : "1",
"tag_name" : "A",
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"user_id" : false,
"price" : "140",
"seats_category" : "CLASSIC",
"show_time" : "2022-06-11T10:00"
},
,
{
"_id" : ObjectId("62a43ac2d7213c7233cd14ef"),
"seat_number" : "2",
"tag_name" : "A",
"seat_status" : false,
"user_id" : false,
"price" : "140",
"seats_category" : "CLASSIC",
"show_time" : "2022-06-11T10:00"
},
{
"_id" : ObjectId("62a43ac2d7213c7233cd14f0"),
"seat_number" : "3",
"tag_name" : "A",
"seat_status" : false,
"user_id" : false,
"price" : "140",
"seats_category" : "CLASSIC",
"show_time" : "2022-06-11T10:00",,
{
"_id" : ObjectId("62a43ac2d7213c7233cd14ef"),
"seat_number" : "2",
"tag_name" : "A",
"seat_status" : false,
"user_id" : false,
"price" : "140",
"seats_category" : "CLASSIC",
"show_time" : "2022-06-11T10:00"
},
{
"_id" : ObjectId("62a43ac2d7213c7233cd14f0"),
"seat_number" : "3",
"tag_name" : "A",
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"user_id" : false,
"price" : "140",
"seats_category" : "CLASSIC",
"show_time" : "2022-06-11T10:00"
}
this is what i ended up doing, I need best solution
await db.getDb().collection(coll.seat).aggregate([
{
'$unwind': {
'path': '$show_seats'
}
}, {
'$unwind': {
'path': '$show_seats.showByDate.shows'
}
}, {
'$unwind': {
'path': '$show_seats.showByDate.shows.showSeats'
}
}, {
'$unwind': {
'path': '$show_seats.showByDate.shows.showSeats'
}
}, {
'$unwind': {
'path': '$show_seats.showByDate.shows.showSeats.seat_details'
}
}, {
'$unwind': {
'path': '$show_seats.showByDate.shows.showSeats.seat_details.values'
}
}, {
'$match': {
'show_seats.showByDate.shows.showSeats.seat_details.values._id': ObjectId("62a43ac2d7213c7233cd14ee")
}
}, {
$addFields: { "show_seats.showByDate.shows.showSeats.seat_details.values.seat_status": true }
}
])

Filtering realtime database data

I have the following firebase database. I would like to filter and list the orders which's deliveryDuration value is "45"
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}
}
I tried writing the following function:
getNewItems: function (order) {
if (db.ref('orders').child(order).child('deliveryDuration').equalTo(45)){
return db.ref('orders').child(order).child('deliveryDuration')
}}
How could I get the filtered objects? I was thinking that that i write an if-else statement and the function returns the values what i was looking for.

I think you're looking for this:
getNewItems: function (order) {
return db.ref('orders').orderByChild('deliveryDuration').equalTo(45));
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sort JSON object alphabeticly

Im trying to use underscore.js to sort my JSON object, however it doesn't seem to sort it alphabeticly when I sort by companyName?
As you can see with this code, the third object in data.adverts has doesnt start with the letter D ?
Code looks like:
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Doing my stuff here.....
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data({
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"totalCount" : 44,
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"orgNumber" : "37167304",
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"latitude" : 55.698735
}, {
"use" : "route",
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]
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"companyReviews" : "http://www.dethitter.dk/brugeranmeldelse/f/122768415/dis",
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"facebook" : null,
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"companyName" : "Dis",
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"cvrPNumber" : null,
"companyText" : null
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"postCode" : "1455",
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"latitude" : 55.6784752
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"latitude" : 55.6784752
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"type" : "std",
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"companyText" : null
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"postCode" : "4300",
"postArea" : "Holbæk",
"postBox" : null
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"latitude" : 55.717305
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"use" : "route",
"longitude" : 11.758669,
"latitude" : 55.717311
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]
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"phoneNumbers" : [],
"companyReviews" : "http://www.dethitter.dk/brugeranmeldelse/f/108935200/dis",
"homepage" : null,
"facebook" : null,
"infoPageLink" : "http://www.krak.dk/f/seapay-dis-aps:108935200?search_word=DIS"
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"companyInfo" : {
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"orgNumber" : "33686587",
"cvrPNumber" : "1016954493",
"companyText" : null
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"streetName" : "Terslev Bygade 7",
"postCode" : "4690",
"postArea" : "Haslev",
"postBox" : null
},
"location" : {
"coordinates" : [{
"longitude" : 11.969888,
"latitude" : 55.374341
}, {
"use" : "route",
"longitude" : 11.970108,
"latitude" : 55.374433
}
]
},
"phoneNumbers" : [{
"type" : "std",
"phoneNumber" : "30 29 98 77",
"label" : null
}
],
"companyReviews" : "http://www.dethitter.dk/brugeranmeldelse/f/66303436/dis",
"homepage" : null,
"facebook" : null,
"infoPageLink" : "http://www.krak.dk/f/dis-faxe:66303436?search_word=DIS"
}, {
"eniroId" : "68809471",
"companyInfo" : {
"companyName" : "Dis Bygge Og Ejendomsadministration",
"orgNumber" : null,
"cvrPNumber" : null,
"companyText" : null
},
"address" : {
"streetName" : "Tuborg Boulevard 12, 1. sal.",
"postCode" : "2900",
"postArea" : "Hellerup",
"postBox" : null
},
"location" : {
"coordinates" : [{
"longitude" : 12.5807377,
"latitude" : 55.7271613
}, {
"use" : "route",
"longitude" : 12.5807377,
"latitude" : 55.7271613
}
]
},
"phoneNumbers" : [{
"type" : "std",
"phoneNumber" : "24 45 71 74",
"label" : null
}
],
"companyReviews" : "http://www.dethitter.dk/brugeranmeldelse/f/68809471/dis",
"homepage" : null,
"facebook" : null,
"infoPageLink" : "http://www.krak.dk/f/dis-bygge-og-ejendomsadministration:68809471?search_word=DIS"
}, {
"eniroId" : "93544746",
"companyInfo" : {
"companyName" : "Dis Center ApS",
"orgNumber" : "35473009",
"cvrPNumber" : "1018749374",
"companyText" : null
},
"address" : {
"streetName" : "Hammershøj 38",
"postCode" : "9460",
"postArea" : "Brovst",
"postBox" : null
},
"location" : {
"coordinates" : [{
"longitude" : 9.596158,
"latitude" : 57.05976
}, {
"use" : "route",
"longitude" : 9.596163,
"latitude" : 57.059895
}
]
},
"phoneNumbers" : [],
"companyReviews" : "http://www.dethitter.dk/brugeranmeldelse/f/93544746/dis",
"homepage" : null,
"facebook" : null,
"infoPageLink" : "http://www.krak.dk/f/dis-center-aps:93544746?search_word=DIS"
}, {
"eniroId" : "66949810",
"companyInfo" : {
"companyName" : "Dis-Danmark",
"orgNumber" : "16917338",
"cvrPNumber" : "1005846555",
"companyText" : null
},
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"coName" : "Jens christian Andersen",
"streetName" : "Toftager 16",
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"coName" : "Ann Christensen",
"streetName" : "Ellestien 1",
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The companyName is a property inside companyInfo so you should try something like this:
var sortedDesc = _.sortBy(data.adverts, function(a){ return a.companyInfo.companyName; });

Unfortunately there is no generic "compare" function in JavaScript to return a suitable value for sort(). I'd write a compareStrings function that uses comparison operators and then use it in the sort function.
function compareStrings(a, b) {
// Assuming you want case-insensitive comparison
a = a.toLowerCase();
b = b.toLowerCase();
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
places.sort(function(a, b) {
return compareStrings(a.city, b.city);
})
more detail visit here. Sorting JSON (by specific element) alphabetically

underscore - locating node based in a value

This is my 1st time using underscore...I've this simple json...
"categories" : [
{
"tag" : "cat1",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 1",
"pt" : "Categoria 1"
},
"children" : [
{
"tag" : "cat11",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 1.1",
"pt" : "Categoria 1.1"
}
},
{
"tag" : "cat12",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 1.2",
"pt" : "Categoria 1.2"
}
}
]
},
{
"tag" : "cat2",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 2",
"pt" : "Categoria 2"
},
"children" : [
{
"tag" : "cat21",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 2.1",
"pt" : "Categoria 2.1"
}
},
{
"tag" : "cat22",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 2.2",
"pt" : "Categoria 2.2"
}
}
]
},
{
"tag" : "cat3",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 3",
"pt" : "Categoria 3"
},
"children" : [
{
"tag" : "cat31",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 3.1",
"pt" : "Categoria 3.1"
}
},
{
"tag" : "cat32",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 3.2",
"pt" : "Categoria 3.2"
}
}
]
},
{
"tag" : "cat4",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 4",
"pt" : "Categoria 4"
},
"children" : [
{
"tag" : "cat41",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 4.1",
"pt" : "Categoria 4.1"
}
},
{
"tag" : "cat42",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 4.2",
"pt" : "Categoria 4.2"
}
}
]
}
]
you can see I've the TAG key in several places. I need to get the entire tree based in a criteria for tag. I was using, find, filter, where and findWhere and all the time I got the same results:
var find = _.find($rootScope.webshop.categories, {tag: 'cat1'});
this works !
but if I try...
var find = _.find($rootScope.webshop.categories, {tag: 'cat11'});
No results :( Even using _.where or ._filter or ._findWhere. - The results always will be the same.
Can someone help a beginner in Underscore with something that's probably simple ?!
ty !

_.find does not recurse, you will have to build your own solution. Something like this:
_.findIn = function() {
var args = Array.prototype.slice.call(arguments, 0);
var childrenProp = args[0];
var result = _.find.apply(_, args.slice(1));
if (result !== void(8)) return result;
var arr = args[1];
for (var i = 0, l = arr.length; i < l; i++) {
args[1] = arr[i][childrenProp];
var result = _.findIn.apply(_, args);
if (result !== void(8)) return result;
}
return void(8);
}
_.findIn('children', categories, {tag: 'cat11'})
categories = [
{
"tag" : "cat1",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 1",
"pt" : "Categoria 1"
},
"children" : [
{
"tag" : "cat11",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 1.1",
"pt" : "Categoria 1.1"
}
},
{
"tag" : "cat12",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 1.2",
"pt" : "Categoria 1.2"
}
}
]
},
{
"tag" : "cat2",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 2",
"pt" : "Categoria 2"
},
"children" : [
{
"tag" : "cat21",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 2.1",
"pt" : "Categoria 2.1"
}
},
{
"tag" : "cat22",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 2.2",
"pt" : "Categoria 2.2"
}
}
]
},
{
"tag" : "cat3",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 3",
"pt" : "Categoria 3"
},
"children" : [
{
"tag" : "cat31",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 3.1",
"pt" : "Categoria 3.1"
}
},
{
"tag" : "cat32",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 3.2",
"pt" : "Categoria 3.2"
}
}
]
},
{
"tag" : "cat4",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 4",
"pt" : "Categoria 4"
},
"children" : [
{
"tag" : "cat41",
"active" : true,
"order" : 10,
"title" : {
"en" : "Category 4.1",
"pt" : "Categoria 4.1"
}
},
{
"tag" : "cat42",
"active" : true,
"order" : 20,
"title" : {
"en" : "Category 4.2",
"pt" : "Categoria 4.2"
}
}
]
}
]
_.findIn = function() {
var args = Array.prototype.slice.call(arguments, 0);
var childrenProp = args[0];
var result = _.find.apply(_, args.slice(1));
if (result !== void(8)) return result;
var arr = args[1];
for (var i = 0, l = arr.length; i < l; i++) {
args[1] = arr[i][childrenProp];
var result = _.findIn.apply(_, args);
if (result !== void(8)) return result;
}
return void(8);
}
document.write(JSON.stringify(_.findIn('children', categories, {tag: 'cat11'})));
<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.7.0/underscore-min.js"></script>

data manipulation in javascript

i have an array of information containing folders like this:
[
{
"ACLID" : 0,
"ID" : 100,
"auditInfoVersion" : 3435973836,
"createBy" : 2,
"createDate" : "04/12/2012 17:38:46",
"isSubFolder" : 0,
"name" : "Piyush1",
"objectType" : 3,
-->"parentID" : 3,
"policyID" : 2,
"sDescription" : "",
"updateBy" : 2,
"updateDate" : "04/12/2012 17:38:46"
},
{
"ACLID" : 0,
"ID" : 102,
"auditInfoVersion" : 3435973836,
"createBy" : 2,
"createDate" : "05/10/2012 12:38:25",
"isSubFolder" : 0,
"name" : "New",
"objectType" : 3,
-->"parentID" : 3,
"policyID" : 2,
"sDescription" : "",
"updateBy" : 2,
"updateDate" : "05/10/2012 12:38:25"
},
{
"ACLID" : 0,
"ID" : 103,
"auditInfoVersion" : 3435973836,
"createBy" : 2,
"createDate" : "05/14/2012 18:00:22",
"isSubFolder" : 0,
"name" : "SegFolderWithDiffPolicy",
"objectType" : 3,
-->"parentID" : 3,
"policyID" : 39,
"sDescription" : "",
"updateBy" : 2,
"updateDate" : "05/14/2012 18:00:22"
},
{
"ACLID" : 0,
"ID" : 104,
"auditInfoVersion" : 3435973836,
"createBy" : 2,
"createDate" : "05/17/2012 14:13:56",
"isSubFolder" : 0,
"name" : "New1",
"objectType" : 3,
-->"parentID" : 100,
"policyID" : 2,
"sDescription" : "",
"updateBy" : 2,
"updateDate" : "05/17/2012 14:13:56"
},
{
"ACLID" : 0,
"ID" : 105,
"auditInfoVersion" : 3435973836,
"createBy" : 2,
"createDate" : "05/17/2012 14:14:13",
"isSubFolder" : 0,
"name" : "abcasdna",
"objectType" : 3,
-->"parentID" : 104,
"policyID" : 2,
"sDescription" : "",
"updateBy" : 2,
"updateDate" : "05/17/2012 14:14:13"
},
{
"ACLID" : 0,
"ID" : 106,
"auditInfoVersion" : 3435973836,
"createBy" : 2,
"createDate" : "05/18/2012 12:51:39",
"isSubFolder" : 0,
"name" : "new2",
"objectType" : 3,
-->"parentID" : 100,
"policyID" : 2,
"sDescription" : "",
"updateBy" : 2,
"updateDate" : "05/18/2012 12:51:39"
}
]
now the required type of data is:
[{
name:'Piyush1',
children: [{
name: 'New1',
children:[{
name: 'abcasdna'
}]
},{
name: 'New2'
}]
},{
name: 'New'
}]
Now the thing is that there could be any number of folders and any level of hierarchy.
so is there a way i can achieve this conversion?

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