Develop Reference

Custom parameters for bootstrap-table server side pagination

I have a service created with spring boot, for which I am trying to display its data using the bootstrap-table library.
My service allows pagination with the query parameters ?page=x&size=y, where page starts at 0.
The response for the query returns something that looks like this:
{
"_embedded": {
"catalogueOrders": [ .... ]
},
"page": {
"size": 20,
"totalElements": 11,
"totalPages": 1,
"number": 0
}
}
Where _embedded.catalogueOrders contains all the data, and page contains the totals.
I tried configuring my table as following:
$('#orderTable').bootstrapTable({
url: "http://localhost:8088/catalogueOrders?orderStatus=" + orderState,
columns: [
{
field: 'orderId',
title: 'Order ID'
},
{
field: 'priority',
title: 'Priority'
}
],
pagination: true,
sidePagination: 'server',
totalField: 'page.totalElements',
pageSize: 5,
pageList: [5, 10, 25],
responseHandler: function(res) {
console.log(res)
return res["_embedded"]["catalogueOrders"]
}
})
This is able to retrieve and display the data, however it returns all the results, clearly due to it not knowing how to apply the pagination. Total elements doesn't seem to be retrieved either, as the table displays Showing 1 to 5 of undefined rows. Also, if I replace the responseHandler with dataField: '_embedded.catalogueOrders', it's no longer displaying the data.
How do I configure the query parameters needed for pagination?
And am I doing anything wrong when I try and configure dataField and totalField?

Figured it out:
Not sure what was wrong with the dataField and totalField, but it seems to not work with nested fields. To resolve this, I formatted the response into a new object inside responseHandler:
dataField: 'data',
totalField: 'total',
responseHandler: function(res) {
return {
data: res["_embedded"]["catalogueOrders"],
total: res["page"]["totalElements"]
}
}
As for the query parameters, by default, bootstrap-table provides the parameters limit and offset. To customize that and convert to size and page like in my case, the queryParams function can be provided:
queryParams: function(p) {
return {
page: Math.floor(p.offset / p.limit),
size: p.limit
}
}

one, yes, it doesn’t work with nested fields. if you want to use nested fields, try on sass code (get the compiler, just search up on web, there’s plenty of posts on the web).
two, i’m not exactly sure what you’re talking about, but you can set up a css variable
:root{
/*assign variables*/
—-color-1: red;
—-color-2: blue;
}
/*apply variables
p {
color: var(-—color-1):
}
you can find loads of info on this on the web.

Converting Poloniex API Callback JSON into format suitable for Highcharts.Stockchart

I am trying to get JSON from Poloniex's public API method (specifically the returnChartData method) to display chart history of cryptocurrencies against one another into a Highchart Stockchart graph (looking like the demo one here.).
This is part of my JavaScript code to use the Poloniex returnChartData callback, get the JSON from it and implement it into the 'data' segment of the chart. So far it is not working and I can't for the life of me figure out what I need to change.
var poloniexUrl = "https://poloniex.com/public?command=returnChartData&currencyPair=BTC_XMR&start=1405699200&end=9999999999&period=14400";
$.getJSON(poloniexUrl, function(data){
results = data;
});
// Creates Chart
var chart = new Highcharts.StockChart({
chart: {
renderTo: 'cryptoChart',
backgroundColor: 'white'
},
title: {
text: currentTitle
},
series: [{
data: results,
turboThreshold: 1000
}],
xAxis: {
original: false
},
rangeSelector: {
selected: 1
},
plotOptions: {
line: {
gapSize: 2
}
}
});
Would love any help!

Refer to this live demo: http://jsfiddle.net/kkulig/0f4odg5q/
If you use turboThreshold the points' options need to be given as an integer or an array (Explanation: https://api.highcharts.com/highstock/plotOptions.series.turboThreshold). In your case the format is JSON, so I disabled turboThreshold to prevent Higcharts error 12 (https://www.highcharts.com/errors/12):
turboThreshold: 0
$.getJSON is asynchronous - the best way to make sure that data variable is initialized is using it inside callback function (second argument of getJSON):
$.getJSON(poloniexUrl, function(data) {
// Creates Chart
var chart = new Highcharts.StockChart({
chart: {
(...)
The data that you fetch looks like candlestick series - I changed the type of the series:
type: 'candlestick'
Date will be properly understood by Highcharts if it's kept in the x property of JSON object (not date):
data: data.map((p) => {
p.x = p.date;
return p
}),

How To Load Plist Data On HighChart Using Objective C?

I am Integrating HighChart Into my iPhone application. I am using below Javascript file for appearing high chart. Here below URL high chart providing data but I want to remove this URL and want to read my Xcode plist data and shown on chart based on that data.
https://www.highcharts.com/samples/data/jsonp.php?filename=aapl-c.json&callback=?
Below My Code
$(function () {
$.getJSON('https://www.highcharts.com/samples/data/jsonp.php?filename=aapl-c.json&callback=?', function (data) {
// Create the chart
$('#container').highcharts('StockChart', {
rangeSelector : {
selected : 1
},
title : {
text : ''
},
navigator : {
enabled : false
},
plotOptions: {
line: {animation: false}
},
series : [{
name : 'AAPL Stock Price',
data : data,
tooltip: {
valueDecimals: 2
}
}]
});
});
});

To load a plist element, you can use the NSDictionary selectors dictionaryWithContentsOfFile: or dictionaryWithContentsOfURL:
More information: NSDictionary reference

#SteaveJobs Solution you are looking is not possible as https://www.highcharts.com/samples/data/jsonp.php?filename=aapl-c.json&callback=? suggests there is a file by name "aapl-c.json" which server will extract json data from and plot graph using StockChartas component.
Which i feel you should look for is some thing similar to Core Plot and its documentation

Javascript Unresponsive Script Error

I am trying to get data to load on my chart from an API. All the data is getting to the chart correctly, but the chart doesn't load and I get the unresponsive script error. I'm using Highcharts. Any suggestions? Thanks. My code is below.
Model
public function ajax_get_chart() {
$quotes = $this->rest->get('api/1/BTCUSD/trades/fetch');
$series_data = array();
$results = $quotes->return;
$i = 0;
foreach ($results as $quote)
{
$series_tmp = array(
'date' => $quote->date,
'price' => $quote->price
);
$series_data[]= $series_tmp;
$i= $i+1;
}
die (json_encode($series_data));
return TRUE;
}
Javascript
$(document).ready(function() {
var chart;
$.ajax({
url: "/chart/ajax_get_chart", // the URL of the controller action method
dataType: "json",
success: function(result)
{
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
defaultSeriesType: 'bar'
},
title: {
text: 'Stacked bar chart'
},
xAxis: {
title: {
text: 'Price'
}
},
yAxis: {
min: 0,
title: {
text: 'Date'
}
},
legend: {
backgroundColor: '#FFFFFF',
reversed: true
},
tooltip: {
formatter: function() {
return ''+
this.series.name +': '+ this.y +'';
}
},
plotOptions: {},
series: result
});
}
});
});

Sounds like the problem is that there's too much data to present.
You can try using a speedier browser (Chrome usually works pretty fast), limiting the data, or trying another charting library.
Limiting the data is probably the most likely one to work. If you need to show all the data, the best way to go about it would be to only load partial data and then if the user for example scrolls the chart, load the missing data.
Another way to present more data at the same time would be to calculate averages for the data on server. For example, if the ticker data is from every second, you could pre-calculate hourly or even daily averages on the server. This generally allows you to show a relatively accurate chart without causing performance problems, and many libraries also support dynamically loading more accurate data if you zoom the chart.

Highcharts can not handle so huge number of data, but using Highstock with dataGrouping or lazy-loading you should be able to handle a lot of points, see demo.
Also this article should help.

Parsing JSON data for Highcharts

I have been going in circles for a few hours with this and have exhausted all the similar stackoverflow threads and also highcharts docs, so hopefully someone can help.
I am trying to plot a pie chart with a gender split. I have worked with line charts before and so had my data in the format for x and y axis, like this:
[{"y":"Mr","x":"145"},{"y":"Miss","x":"43"},{"y":"Mrs","x":"18"},{"y":"Ms","x":"2"}]
This was getting me somewhere, i could tap into the json and pull out the ints but i couldnt for the life of me get the titles associated with the figures...
function genderData() {
$.getJSON('/statsboard/gender', function(data_g) {
$.each(data_g, function(key_g, val_g) {
obj_g = val_g;
genderChart.series[0].addPoint(parseInt(obj_g.x));
//genderChart.xAxis[0].categories.push(obj_g.y);
});
});
}
I then just called the function genderData as follows:
genderChart = new Highcharts.Chart({
chart: {
renderTo: 'gender',
events: {
load: genderData
}
}
title: {
text: 'Gender Split'
},
plotOptions: {
pie: {
allowPointSelect: true,
cursor: 'pointer',
dataLabels: {
enabled: false
},
showInLegend: true
},
},
series: [{
type: 'pie',
name: 'Gender Split',
data: []
}]
});
So i ended up with an accurate chart but with out the labels, and they would just default to 'slice'...
So close but no cigar ;-)
Soooo i altered my serverside code to return the following format as per the docs :-), now returning the following:
[{"Mr":"145"},{"Miss":"43"},{"Mrs":"18"},{"Ms":"2"}]
This looks pretty much spot on to me, but alas, when i try to accomodate for this on the js code, everything falls apart.
I have been looking at this:
Write JSON parser to format data for pie chart (HighCharts)
but cant get the practice applied here to fit my circumstances.. Can anyone help?

The forms:
[{"name": "Mr", "y": 145}, ...]
or
[["Mr", 145], ...]
will work. Notice the second form is an array of arrays not an array of objects (you were close).
See basic-pie demo (click view options and scroll down to data), series.data docs, and series.addPoint docs for more info.
If you make the server side return the data in one of the two above forms you can just do:
function genderData() {
$.getJSON('/statsboard/gender', function(data_g) {
genderChart.series[0].setData(data_g, true);
});
}

You can set your points as follows:
genderChart.series[0].addPoint({
name: key_g,
y: val_g
});

By rearranging my Json to have "name" and "y" as the keys i was able to make progress i.e:
[{"name":"Mr","y":"145"},{"name":"Miss","y":"43"},{"name":"Mrs","y":"18"},{"name":"Ms","y":"2"}]
Then by looping through the json data and parsing the "y" value as a int with the function parseInt() in the JS i was able to get my desired result...
function genderData() {
$.getJSON('/statsboard/gender', function(data_g) {
$.each(data_g, function(key_g, val_g) {
obj_g = val_g;
genderChart.series[0].addPoint({
name: obj_g.name,
y: parseInt(obj_g.y)
});
console.log(obj_g.y)
});
});
}

I know this question has been solved. but the map function for array might be a good choice in these cases, I love map in functional language!
data = [{"y":"Mr","x":"145"},{"y":"Miss","x":"43"},
{"y":"Mrs","x":"18"},{"y":"Ms","x":"2"}];
var series = data.map(function(e){ return parseInt(e.x); });
.... hight chart ....