Setting Data Source Using URL

FusionCharts lets you pass the complete JSON/XML chart data as a static string to the dataSource attribute. Alternatively, you can also save the chart data in a .json or .xml file and then pass the relative URL of this file as value to the dataSource attribute.

The only difference between the two methods is the value that is passed to the dataFormat attribute. For the first method, the dataFormat attribute takes json or xml as values, depending on the chart data. For the second method, the values will be jsonurl and xmlurl.

This article explains how you can set the chart data using the URL of the corresponding file using ember-fusioncharts component.

Load data using JSON as URL

Let's build the same revenue chart which we built in the first example using JSON, and use a .json file as the data source.

The data for this chart is represented in the table below:

The JSON representation for the above table looks as shown below:

{
    // Chart Configuration
    "chart": {
        "caption": "Countries With Most Oil Reserves [2017-18]",
        "subCaption": "In MMbbl = One Million barrels",
        "xAxisName": "Country",
        "yAxisName": "Reserves (MMbbl)",
        "numberSuffix": "K",
        "theme": "fusion",
    },
    // Chart Data
    "data": [{
        "label": "Venezuela",
        "value": "290"
    }, {
        "label": "Saudi",
        "value": "260"
    }, {
        "label": "Canada",
        "value": "180"
    }, {
        "label": "Iran",
        "value": "140"
    }, {
        "label": "Russia",
        "value": "115"
    }, {
        "label": "UAE",
        "value": "100"
    }, {
        "label": "US",
        "value": "30"
    }, {
        "label": "China",
        "value": "30"
    }]
}COPY

Copy this into a file, name it oilReserves.json, and store it in the same folder as your modules.

If you are using multilingual characters in your JSON, make sure that you save the JSON data with UTF-8 encoding.

Setup ember-cli-build.js

In this step we will include all the necessary files and add the dependency to create the Column 2D chart. The code is given below:

/* eslint-env node */
'use strict';

const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');

module.exports = function (defaults) {
    let app = new EmberAddon(defaults, {
        // Add options here
    });

    // Import FusionCharts library
    app.import('bower_components/fusioncharts/fusioncharts.js');
    app.import('bower_components/fusioncharts/fusioncharts.charts.js');        
    app.import('bower_components/fusioncharts/themes/fusioncharts.theme.fusion.js');    

    return app.toTree();
};COPY

In the above code, include the necessary libraries and components using import. For example, ember-fusioncharts, fusioncharts, etc.

If you need to use different assets in different environments, specify an object as the first parameter. That object's keys should be the environment name and the values should be the asset to use in that environment.

Add chart data to chart-viewer.js

Add the following code to chart-viewer.js:

import Component from '@ember/component';

export default Component.extend({
    width: 700,
    height: 400,
    type: 'column2d',
    dataFormat: 'jsonurl',
    dataSource: 'data.json' /* see data tab */
});COPY

In the above code:

1. Create a chart component to render the chart.

2. Store the chart configuration in a JSON object. In the JSON object:

   • Set the chart type as column2d. Find the complete list of chart types with their respective alias here.
   • Set the width and height of the chart in pixels.
   • Set the dataFormat as JSON.
   • Embed the json data as the value of dataSource.

3. To set the datasource using URL:

   • Set the value of the dataFormat to jsonurl.
   • Set the static URL to dataSource to render the above chart.

Add data to chart-viewer.hbs

Add the following code to chart-viewer.hbs:

{{fusioncharts-xt
    width=width
    height=height
    type=type
    dataFormat=dataFormat
    dataSource=dataSource
}}COPY

In the above code, add the fusioncharts component to render the chart.

When rendering your charts locally (without a web server, even if on the localhost), you will not be able to load data from XML or JSON files present on your hard-drive. This is due to security restrictions enforced by most modern browsers.

Load data using XML as URL

The XML representation for the above chart looks as shown below:

<chart caption='Countries With Most Oil Reserves [2017-18] ' subcaption='In MMbbl = One Million barrels ' xaxisname='Country ' yaxisname='Reserves (MMbbl) ' numberprefix='K ' theme='fusion '>
    <set label='Venezuela ' value='290 ' />
    <set label='Saudi ' value='260 ' />
    <set label='Canada ' value='180 ' />
    <set label='Iran ' value='140 ' />
    <set label='Russia ' value='115 ' />
    <set label='UAE ' value='100 ' />
    <set label='US ' value='30 ' />
    <set label='China ' value='30 ' />
</chart>COPY

Copy this into a file called oilReserves.xml and store it in the same folder as your HTML page.

If you are using multilingual characters in your XML, make sure you save the XML data with UTF-8 encoding.

Setup ember-cli-build.js

In this step we will include all the necessary files and add the dependency to create the Column 2D chart. The code is given below:

/* eslint-env node */
'use strict';

const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');

module.exports = function (defaults) {
    let app = new EmberAddon(defaults, {
        // Add options here
    });

    // Import FusionCharts library
    app.import('bower_components/fusioncharts/fusioncharts.js');
    app.import('bower_components/fusioncharts/fusioncharts.charts.js');        
    app.import('bower_components/fusioncharts/themes/fusioncharts.theme.fusion.js');    

    return app.toTree();
};COPY

In the above, include the code necessary libraries and components using import. For example, ember-fusioncharts, fusioncharts, etc.

If you need to use different assets in different environments, specify an object as the first parameter. That object's keys should be the environment name and the values should be the asset to use in that environment.

Add chart data to chart-viewer.js

Add the following code to chart-viewer.js:

import Component from '@ember/component';

export default Component.extend({
    width: 700,
    height: 400,
    type: 'column2d',
    dataFormat: 'xmlurl',
    dataSource: 'data.xml' /* see data tab */
});COPY

In the above code:

1. Create a chart component to render the chart.

2. Store the chart configuration in an XML object. In the XML object:

   • Set the chart type to column2d. Find the complete list of chart types with their respective alias here.
   • Set the width and height of the chart in pixels.
   • Set the dataFormat as XML.

3. To set the datasource using URL:

   • Set the value of the dataFormat to xmlurl.
   • Set a static URL to dataSource to render the above chart.

Add data to chart-viewer.hbs

Add the following code to chart-viewer.hbs:

{{fusioncharts-xt
    width=width
    height=height
    type=type
    dataFormat=dataFormat
    dataSource=dataSource
}}COPY

In the above code, add the fusioncharts component to render the chart.