Ajax, why ClientScript is needed?

nettrinity · April 21, 2011, 2:15am

I am reading this Wiki article here:

but confused by the following word:

In this case the actionAjax should send even the client script needed, this can be done by setting the fourth parameter of renderpartial to true:
public function actionAjax()

{

   $this->renderPartial('ajaxView', array(), false, true);

}
The fourth will make so all client script will be processed and wrote at the end of the html widget.

what is the situation this paragraph describing here? I have no clue what they talking about, but I think it is pretty important issue in using Ajax.

Thanks!

tri · April 21, 2011, 9:13am

This should read "send even the client script needed by the partial". Those scripts may already have been included in the main part of the page.

/Tommy

nettrinity · April 21, 2011, 6:27pm

client script means Javascript, right? Can you give an example of "client script needed by the partial"?

Thanks!

tri · April 22, 2011, 2:08pm

Unfortunately, enabling the call to processOutput() by passing true as the fourth parameter to renderPartial(), not only will output the scripts registered in the current request, but also the core scripts, unless prevented for by flagging the package in question with value false in scriptMap. BTW the only difference between render() and renderPartial() in this respect, is that the former will call processOutput() unconditionally.

There’s a already a lot of threads in this forum regarding clientScript, processOutput, scriptMap and various effects of including scripts in ajax loaded content, especially if repeated. You may also want to examine the source code in question, easy accessible through links in the online API reference.

/Tommy

nettrinity · April 23, 2011, 11:33pm

Thanks!

I just couldn’t understand the problem that is associated with 4th parameter, let along the solution. All their discussion doesn’t make sense to me. Let me do some other research first.