On Sun, Nov 04, 2007 at 07:45:13AM -0800, JamesT wrote:
> I have a javascript file in /public/javascript that I want to receive
> data from a pylons function.
I assume that you are including and running that Javascript from the
HTML output you send to the browser. :)
> I am returning JSON formatted text in this function in
> /controller/player.py and want the JSON output going to a Javascript
> function. I am not sure how to route this data to this function. I
> have tried the following:
>
> this.dataSource= new YAHOO.util.DataSource("http://localhost:2985/
> player/get_data");
> this.dataSource.responseType = YAHOO.util.DataSource.TYPE_JSON;
>
> where get_data is the function that returns a JSON object, but it does
> not receive anything. If I type that URL in my browser, I see the JSON
> formatted data. Do I need to do something completely different to get
> the data to the Javascript?
That looks right to me. I don't know or use the YUI library myself
though. But I use the @jsonify decorator for certain actions in a
controller and my Javascript (jQuery Javascript library) roughly looks
like:
$.getJSON(
'/ajax/someaction',
{ parameter1: 'foobar1' },
callback_function_to_be_called_when_the_data_is_received
);
def callback_function_to_be_called_when_the_data_is_received(data) {
alert(data['something']);
}
The Pylons controller would look like this:
class AjaxController(BaseController):
@jsonify
def someaction(self):
return ['something' : 42]
Otherwise - in case you are using Firefox - the FireBug extension helps
debugging Javascript code. Is YAHOO.util.DataSource() perhaps an
asynchronous call and doesn't block until you get the data back?
Cheers
Christoph
P.S.: All code untested so copy/paste may fail miserably.
P.P.S.: I've been using AJAJ in my application for a week but I love
how Pylons and jQuery really make that trivial. If only there
were documentation on that. :)
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