Change the name of keys while creating an array - javascript

I have the response in the following format after doing groupby in solr query. I am using solr version 3.5
"grouped":{
"channel_id":{
"matches":48,
"ngroups":26,
"groups":[{
"groupValue":"204",
"doclist":{"numFound":1,"start":0,"docs":[
{
"channel_name":"ZeeTv",
"channel_num":4,
"title":"The Name",
"channel_id":"204"
}},
{
"groupValue":"166",
"doclist":{"numFound":2,"start":0,"docs":[
{
"channel_name":"Sony",
"channel_num":2,
"title":"The Name",
"channel_id":"166",
{
"channel_name":"Sony",
"channel_num":2,
"title":"The Puzzle",
"channel_id":"166"
}}]}}
I am taking the response in an array in the following way :
for(var chl in data.grouped.channel_id.groups) {
config['playlist'].push(data.grouped.channel_id.groups[chl]['doclist']['docs']);
}
Thus an individual array of each groupValue is formed. The struture of the array is:
"0"=>{"0"=>"value"},"1"=>{"0"=>"result1","1"=>"result2"}
But i want to change the key name i.e. "0","1" to the groupValue from the response while creating an array so that i can do config['playlist']['166'] to check all the shows for this channel_id from the array. Can this be done and if so how. I am expecting the following :
"204"=>{"0"=>"value"},"166"=>{"0"=>"result1","1"=>"result2"}
Also if possible can the solr query be made such that the channel_num in the response comes in ascending order i.e. first result for channel_num 2 and then 4. I have done groupby:channel_id

What about that?
for(var chl in data.grouped.channel_id.groups) {
config['playlist'][data.grouped.channel_id.groups[chl].groupValue] = data.grouped.channel_id.groups[chl]['doclist']['docs'];
}
Push is there to add an element at the end of an array. But any Javascript object is just a hash table, so you can use it that way.
By the way, you can make the code simpler with a for each :
for each(var chl in data.grouped.channel_id.groups) {
config['playlist'][ch1.groupValue] = ch1['doclist']['docs'];
}

Pikrass has answered correctly... as far as ordering with channel_num is concerned try adding the following in your query:
&sort=channel_num asc

Related

How to insert array data into json object in react js

I have a languages array. I need to insert my array data into Json Objeatc within a function.
I am a new student and I tried to do this using map. But it only inserts one data of array into a JSON object. But I need to insert all off array data one by one. But I don't know the way to that.IF anyone can help me with that it's really mean to me. Thank you.
This is how I need to be my JSON object:-
"displayNameLocalization": {
"en": "Fruits",
"fr": "des fruits",
"ja": "果物"
}
const data = {
displayNameLocalization : {},
};
const languages = ['En', 'Ta', 'Fr'];
function testFinalValue() {
displayNameLocalization.map((item) => {
data.displayName = item;
});
}
that's because you are overwritten the same variable in each loop of map, because there will be one element in data with name displayName , so in each loop you are affecting w new value to the same element that's why you input has just one value affected.
Can you afford an example of the input and the output that you want to get so I can help you with the code.

Finding the latest index of a particular key with inconsistent JSON?

Suppose I have some JSON like below:
[
{
"date": "2020-12-25",
"total_cases": 469482.0,
"new_cases": 2260.0,
"new_cases_smoothed": 2115.571,
"total_deaths": 9816.0,
"new_deaths": 63.0,
"new_deaths_smoothed": 80.857,
"total_cases_per_million": 2125.388,
"new_cases_per_million": 10.231,
"new_cases_smoothed_per_million": 9.577,
"total_deaths_per_million": 44.438,
"new_deaths_per_million": 0.285,
"new_deaths_smoothed_per_million": 0.366,
"new_tests": 54649.0,
"total_tests": 6482889.0,
"total_tests_per_thousand": 29.349,
"new_tests_per_thousand": 0.247,
"new_tests_smoothed": 38118.0,
"new_tests_smoothed_per_thousand": 0.173,
"positive_rate": 0.056,
"tests_per_case": 18.0,
"tests_units": "tests performed"
},
{
"date": "2020-12-26",
"total_cases": 471335.0,
"new_cases": 1853.0,
"new_cases_smoothed": 2006.714,
"total_deaths": 9874.0,
"new_deaths": 58.0,
"new_deaths_smoothed": 77.714,
"total_cases_per_million": 2133.777,
"new_cases_per_million": 8.389,
"new_cases_smoothed_per_million": 9.085,
"total_deaths_per_million": 44.701,
"new_deaths_per_million": 0.263,
"new_deaths_smoothed_per_million": 0.352,
"new_tests": 40953.0,
"total_tests": 6523842.0,
"total_tests_per_thousand": 29.534,
"new_tests_per_thousand": 0.185,
"new_tests_smoothed": 37101.0,
"new_tests_smoothed_per_thousand": 0.168,
"positive_rate": 0.054,
"tests_per_case": 18.5,
"tests_units": "tests performed"
},
{
"date": "2020-12-27",
"total_cases": 473309.0,
"new_cases": 1974.0,
"new_cases_smoothed": 2048.714,
"total_deaths": 9929.0,
"new_deaths": 55.0,
"new_deaths_smoothed": 76.714,
"total_cases_per_million": 2142.714,
"new_cases_per_million": 8.936,
"new_cases_smoothed_per_million": 9.275,
"total_deaths_per_million": 44.95,
"new_deaths_per_million": 0.249,
"new_deaths_smoothed_per_million": 0.347,
"new_tests": 33270.0,
"total_tests": 6557112.0,
"total_tests_per_thousand": 29.685,
"new_tests_per_thousand": 0.151,
"new_tests_smoothed": 36539.0,
"new_tests_smoothed_per_thousand": 0.165,
"positive_rate": 0.056,
"tests_per_case": 17.8,
"tests_units": "tests performed"
},
{
"date": "2020-12-28",
"new_tests": 32205.0,
"total_tests": 6589317.0,
"total_tests_per_thousand": 29.83,
"new_tests_per_thousand": 0.146,
"new_tests_smoothed": 36172.0,
"new_tests_smoothed_per_thousand": 0.164,
"tests_units": "tests performed"
}
]
Out of this array of records in the JSON, I'm looking to grab the most recent instance of "total_cases". Here is the JavaScript I wrote to satisfy this:
const total_cases = (data[data.length - 1].total_cases);
Obviously, this doesn't work, because the last record in the array doesn't contain an instance of the "total_cases" key. I'm fetching from the source using HTTP GET, and it is updated daily, so sometimes the latest record has the keys I'm looking for, but other times I get a TypeError.
My question is if there is any way to find the index of the latest record that has a particular key I'm looking for, when the JSON has some inconsistencies like this. The alternative is to say hell with it and look for another source. I'm considering that option, because this is too much of a hassle to work with, but I'm still curious as to what could be done. Hope that makes sense.
You could reverse the array and then use the Array.find method.
const total_cases = data
.slice() // Since reverse() changes the array in place, we need a copy of the original array
.reverse()
.find(record => record.total_cases !== undefined)
.total_cases;
A possible way to do that would be by reversing the array and then use Array.prototype.find() to search for the most recent record with total cases.
data.reverse().find(r => r.total_cases);
You can do something like this, that I find easy to understand for you and for the next dev reading your code
data
.sort((i1, i2) => i1.date > i2.date ? -1 : 1)
.filter(item => Boolean(item.total_cases))
[0].total_cases

revise deeply nested JSON array in DOM

I have an HTML page that contains a stringified JSON object. The object has this structure:
{
"x":{
"key1":[],
"key2":{},
"keyN":{},
"myKey":{
"randomID238492":{
"items":[
{ "value":"zzzz" },
{ "value":"aaaa" },
{ ...}
]
}
}
}
}
I want to replace this object with one in which the "items" array has been sorted. Here is what I will and won't know about the object:
"myKey" and "items" will always be the relevant object keys
"myKey" will contain only one random ID, and the "items" key will always be its first child
I won't know the order of "myKey" in the object.
I won't know the true randomID under which "items" nests.
Is there a clear, efficient way to replace this JSON object with one in which "items" has been sorted? Right now, I do it by using this jQuery function after the page has rendered:
$(function() {
var myData = $( "#myJSON_string" )[0]; // <script> node that contains the string
var myDataJSON = JSON.parse(myData.innerText); // JSON string
var myKeyJSON = myDataJSON["x"]["myKey"]; // object
var myArr = myKeyJSON[Object.keys(myKeyJSON)[0]]["items"]; // array to sort
// Now sort and revise. I'm leaving myCompare() out of the example for brevity
myKeyJSON[Object.keys(myKeyJSON)[0]]["items"] = myArr.sort(myCompare);
myDataJSON["x"]["myKey"] = myKeyJSON;
myDataJSON = JSON.stringify(myDataJSON);
myData.innerText = myDataJSON;
});
This approach works, but it seems rather labored. It might be better, for example, if I could revise the JSON object "in place" without parsing it and then re-stringifying it.
Many SO posts, like this one, speak to the general question of how to sort a JSON array. But I can't see that any speak to the specific question posed here.

Sorting of Arrays in Object with recursive search

I am trying to sort every Array by Name in an JSON-Object using Node.js.
I manage to sort just the Array with Underscore.js, but how can I input the whole Object and just get the Object back finished sorted?
Thinking about looking through the object recursively for Arrays and sort every one of them, but how can I do that?
Here is an example Object with just sorting the Array:
var _ = require("./underscore.js")
var jsonObject = { "Configuration":{
"$":{
"xmlns":"http://www.example.com/"
},
"ApplicationInstance":{
"Description":"Description text here.",
"Name":"Server1",
"Class":"System",
"Visibility":"System",
"CustomerCreated":"0",
"Active":"0",
"IntroducedIn":{
"$":{
"xsi:nil":"true",
"xmlns:xsi":"http://www.w3.org/2001/XMLSchema-instance"
}
},
"Property":[
{
"Description":"JMS publisher destination type.",
"Name":"jmsJBossPublisher.destinationType",
"Class":"System",
"Visibility":"System",
"LanguageIndependantDescriptionKey":"ActivityGateway-JMSSenderConfiguration.jmsJBossPublisher.destinationType.DESCKEY",
"LanguageIndependantNameKey":"ActivityGateway-JMSSenderConfiguration.jmsJBossPublisher.destinationType.NAMEKEY",
"CustomerCreated":"1",
"Active":"0",
"IntroducedIn":"1.1",
"AttributeValue":"QUEUE",
"AttributeDataTypeName":"String"
},
{
"Description":"jmsConnectionFactory properties.",
"Name":"jmsConnectionFactory.jndiNameForJmsConnectionFactory",
"SecurityClass":"System",
"Visibility":"System",
"LanguageIndependantDescriptionKey":"ActivityGateway-JMSSenderConfiguration.jmsConnectionFactory.jndiNameForJmsConnectionFactory.DESCKEY",
"LanguageIndependantNameKey":"ActivityGateway-JMSSenderConfiguration.jmsConnectionFactory.jndiNameForJmsConnectionFactory.NAMEKEY",
"CustomerCreated":"1",
"Active":"0",
"IntroducedIn":"1.1",
"AttributeValue":"ConnectionFactory",
"AttributeDataTypeName":"String"
}
],
"ServerId":"1",
"ApplicationName":"ActivityGateway",
"InstanceID":"1"
}
}
};
console.log(_.sortBy(jsonObject.Configuration.ApplicationInstance.Property,'Name'))
_.sortBy returns a cloned array, so you'll need to override the previous value.
Try adding this line:
jsonObject.Configuration.ApplicationInstance.Property = _.sortBy(jsonObject.Configuration.ApplicationInstance.Property,'Name')

Matching 2 JSON objects

I have a very large json like :
raw_obj= {"001" : {....}, "002" : {....}};
and I have an another json object which is just returned from server :
search_result = {["001", "005", "123"]};
I want to do something like
$.each(search_result, function(i,val){
alert(raw_obj.search_result[i]);
});
Is it possible? I don't want to loop through those 2 objects because in practical, there will be have around 2000 elements in a "raw_json". Which means the worst case is 2000x2000 times loop per one query.
var raw_obj= {"001" : {'...'}, "002" : {'...'}};
var search_results = ["001", "005", "123"]; // just an array
$.each(search_results, function(i, result) {
alert(raw_obj[result]);
});
The search results are an array (ie, list), not an object (ie, map) and so the syntax should be modified as above. If you have no control over the server response, use string parsing to build a new array.

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