Charts stopped working after I cleared cache today, which were earlier working and I also observed API changes especially in DataTable

[Nisarg Panchal]

Hi,

I have developed a small application to generate graphs for performance monitoring. The graphs were working just fine until last time 18th Feb 2015. Today when I cleared cache and reloaded - the same code no longer works!

I also started getting issues for e.g. I was using a hack data.Pf.length to check how many columns are there in a DataTable since I am programmatically adding columns. But now the same property is changed to DataTable.If (I know we do have getNumberOfColumns() function), but this is just to highlight the issue better.

I am having correct data sets in terms of CSV files but unfortunately all of them are failing :

Cannot read property '1' of undefined

I am not sure where am I going wrong, any guidance related to most recent changes would be great. I even tried addRows with hardcoded scalar data in the required format but that too is giving same issue as above.

[Nisarg Panchal]

To test things I wrote code below for generating a dummy chart but that too is failing:

var data = new google.visualization.DataTable();

data.addColumn('string', 'X');

data.addColumn('number', 'Y');

for(var i=0;i<20;i++){

data.addRow(['tenant'+i, (10+i)]);

}

var view = new google.visualization.DataView(data);

var options = {

title : ' Demo chart',

hAxis: {title: 'X'},

vAxis : { title : "Y" },

animation:{

startup: true,

       duration: 1000,

       easing: 'out',

   },

   pointSize: 5,

   width : 1500,

height : 1200

};

var chart = new google.visualization.LineChart($('#dummy_chart')[0]);

chart.draw(view, options);

Bottomline is, I am using addRow() function to add individual record and it's failing, which was working just fine.

[Daniel LaLiberte]

Hi Nisarg,

First, the obfuscated property names will change each time we do a release, so you should not use them except for a short-term hack that you should expect will be broken again shortly.  

Second, the startup animation is a new feature, and it turns out not to work with DataViews.  So if you just use your data table directly instead, it will work.  See http://jsfiddle.net/dlaliberte/gdo1gsqd/

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[Nisarg Panchal]

Thanks Daniel, it was very very helpful. You saved my day. :)

Thanks and Regards

"If the dream is BIG enough, the facts don't count"

-Nisarg Panchal

(+65-9384 3525)

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