Hello! I'm having trouble formatting my data to be displayed properly on
the Google Visualization AnnotatedTimeLine chart.
I have a table of products, and a table of devices (each device is a
representation of one type of product).
The data looks something like this in MySQL:
products table:
product_id
product_name
devices table:
device_id
product_id
device_registered
I want the chart to display device registrations over time. The x-axis is a
date range, and the y-axis is the total number of devices registered.
So far I am able to successfully generate the chart for one product at a
time, but what I need to do is display a line for each product's
registration growth - all together on one chart.
Here is my code to generate the chart for one product at a time:
<h3 class="center">Device Registration Growth:
> <select name="device_registration_growth_product_id"
> id="device_registration_growth_product_id" class="selecth3">
> <option value="0">(All Products)</option>
> <?php foreach($view->products as $product):
> $exF="";
> if ($product->product_id==$view->product_id){$exF=" selected";}
> ?>
> <option
> value="<?=$product->product_id?>"<?=$exF?>><?=$product->product_name?></option>
> <?php endforeach; ?>
> </select></h3>
> <div id="chart_device_registration_growth" style="height:400px;"></div>
> <script type="text/javascript" src="https://www.google.com/jsapi";></script>
> <script type="text/javascript">
> google.load("visualization", "1", {packages:["annotatedtimeline"]});
> google.setOnLoadCallback(firstChart);
> function firstChart() {
> drawChart(<?=$view->product_id?>)
> }
> function drawChart(pID) {
> var gData = new google.visualization.DataTable();
> var gUrl = "/devices/growth/product/"+pID+".json";
> $.get(gUrl,function(data){
> var pName = $("#device_registration_growth_product_id
> option[value='"+pID+"']").text();
> gData.addColumn('date', 'Date');
> gData.addColumn('number',pName);
> var gRows = [];
> var growth = data.data.growth;
> var startingRegistrations = 0;
> $.each(growth,function(key,value){
> var growthdate = value.date;
> var dateParts = growthdate.split("-");
> growthdate = new Date(dateParts[0], dateParts[1] - 1,
> dateParts[2]);
> var growthregistrations =
> parseInt(value.device_registrations);
> startingRegistrations+=growthregistrations;
> gRows.push([growthdate, startingRegistrations]);
> });
> gData.addRows(gRows);
> var chart = new
> google.visualization.AnnotatedTimeLine(document.getElementById('chart_device_registration_growth'));
> chart.draw(gData, {'displayAnnotations': true});
>
> });
> }
> $("#device_registration_growth_product_id").change(function(){
> var pID = $(this).val();
> drawChart(pID);
> });
> </script>
And here is the non-functional code I have to display all the products on
one chart:
gData.addColumn('date', 'Date');
$.get("/products.json",function(data){
var products = data.data.products;
$.each(products,function(key,value){
var pName = value.product_name;
gData.addColumn('number',pName);
var pID = value.product_id;
var gUrl = "/devices/growth/product/"+pID+".json";
$.get(gUrl,function(pdata){
var growth = pdata.data.growth;
var startingRegistrations=0;
$.each(growth,function(key,value){
if (value.hasOwnProperty("date")) {
var growthdate = value.date;
var dateParts = growthdate.split("-");
growthdate = new Date(dateParts[0], dateParts[1] -
> 1, dateParts[2]);
var growthregistrations =
> parseInt(value.device_registrations);
startingRegistrations+=growthregistrations;
> // gData.addRows([[new Date(2013,02,01), 1, 2, 3, 4, 5, 6]]);
> }
}); //end each product growth
}); //end get product
}); // end each product
> // gData.addRows([[new Date(2013,02,01), 1, 2, 3, 4, 5, 6]]);
// gData.addRows([[new Date(2013,02,15), 2, 3, 4, 5, 6, 7]]);
// gData.addRows([[new Date(2013,03,01), 8, 8, 8, 9, 9, 9]]);
> var chart = new
> google.visualization.AnnotatedTimeLine(document.getElementById('chart_device_registration_growth'));
chart.draw(gData, {'displayAnnotations': true});
});
The data coming from the APIs are:
/devices/growth/product/"+pID+".json"
{
>
> "code": 200,
>
> "data": {
>
> "growth": [
>
> {
>
> "date": "2013-01-28",
>
> "device_registrations": "14"
>
> },
>
> {
>
> "date": "2013-02-14",
>
> "device_registrations": "2"
>
> },
>
> {
>
> "date": "2013-03-05",
>
> "device_registrations": "1"
>
> }
>
> ]
>
> }
>
> }
>
>
and from the Products api (to get a list of products):
{
"code": 200,
"data": {
"products": [
{
"product_id": "23",
"product_name": "Alpha",
},
{
"product_id": "22",
"product_name": "Beta",
},
{
"product_id": "21",
"product_name": "Gamma",
}
]
}
}
Please help!!
Thanks
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