use of the getRow() function on a datatable deprecated ?

[Tristan Chapo]

Hello Everyone,

I was trying to use the getRow() method : The function in question is here.

But when running my webpage I get "Uncaught TypeError: Object #<U> has no method 'getRow' ".

Has this function been deprecated ? If not, how can I make sure I can use it ?

Cheers

[Tristan Chapo]

Here is my code :

<script type="text/javascript" src="https://www.google.com/jsapi"></script>
google.load('visualization', '1',{'packages': ['table']});

and then later on (both data and dataToAdd are DataTable()):

data.addRow(dataToAdd.getRow(0));   

[asgallant]

There is no DataTable#getRow method.  What is the ultimate goal you are trying to accomplish here?  Copying data from one DataTable to another is rarely the best way to approach a problem, so there might be a simpler solution waiting for you.

[Tristan Pochat]

Ah OK. So what is my link describing?
I found a workaround by using the ".K" property.

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[asgallant]

That looks like the Java API, not the JavaScript API.  Be careful using shortcuts like that - the internal workings of the API are subject to change at any time, so updates can break your code if you depend on them.

On Tuesday, July 2, 2013 7:38:37 PM UTC-4, Tristan Chapo wrote:

Ah OK. So what is my link describing?
I found a workaround by using the ".K" property.

On 3 Jul 2013 01:10, "asgallant" <drew_g...@abtassoc.com> wrote:

There is no DataTable#getRow method.  What is the ultimate goal you are trying to accomplish here?  Copying data from one DataTable to another is rarely the best way to approach a problem, so there might be a simpler solution waiting for you.

On Monday, July 1, 2013 11:44:48 PM UTC-4, Tristan Chapo wrote:

Here is my code :

<script type="text/javascript" src="https://www.google.com/jsapi"></script>
google.load('visualization', '1',{'packages': ['table']});

and then later on (both data and dataToAdd are DataTable()):

data.addRow(dataToAdd.getRow(0));   

On Tuesday, July 2, 2013 11:04:15 AM UTC+8, Tristan Chapo wrote:

Hello Everyone,

I was trying to use the getRow() method : The function in question is here.

But when running my webpage I get "Uncaught TypeError: Object #<U> has no method 'getRow' ".

Has this function been deprecated ? If not, how can I make sure I can use it ?

Cheers

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[Tristan Pochat]

Agreed.

What would you recommend then ?

I send several asynchronous queries to the server (which sends me back one datatable per query) and add them to my summary table as they come back.

I know the line I want to extract in each query.

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[asgallant]

Try this:

// rowIndex is the row index you want to pull data from - you can loop this if you need to pull multiple rows
var json = dataToAdd.toJSON();
data.addRow(json.rows[rowIndex].c);
json = null;

This exploits the structure of the JSON representation of the DataTable - which is part of the public face of the API, so you can count on it being stable.  If you are pulling these from an AJAX query, you can actually skip creating a DataTable object entirely and just pull the row directly from the JSON.

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[Tristan Pochat]

nice.

I'll give it a try.

Thank you very much.

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[Tristan Pochat]

I think you need to have JSON.parse(dataToAdd.toJSON()) instead of dataToAdd.toJSON() in order to be able to manipulate the object.

But that works perfectly. Thanks for the pointer.

[asgallant]

You're right - the #toJSON method returns it as a string (as is proper for JSON); I forgot that step.