Create widget's instance, but do not display it

Yii 1.1 General Discussion
1

Hello,

I am having a difficulty trying to get widget’s id before displaying it. What I want to achieve is this:

[INPUT BOX]

[AJAX SUBMIT BUTTON]

CListView

I want user to write a message, press the ajax button so the message gets posted and the CListView updates. This is what I’ve tried:




...

<?php echo CHtml::ajaxSubmitButton('Post', Yii::app()->createUrl('main/createDataEntry')); ?> 


<?php

$this->widget('zii.widgets.CListView', array(

		    'dataProvider'=>$dataProvider,

		    'itemView'=>'_dataEntry',

		    'template' => '{items}',

		    'updateSelector' => 'input' //Just for testing purposes

		));

?>

But the updateSelector doesn’t work. If I try to set any other element - it works. Also, I have tried executing this:




$("input").click(function() {$.fn.yiiListView.update('yw0')});

it works then. So what I need to do, is get the ID of the widget, add a click handler to the button and then render the widget. The problem is, I can’t manage to do this. I can get the ID of widget like this:




$listView = $this->widget('zii.widgets.CListView', array(

		    'dataProvider'=>$dataProvider,

		    'itemView'=>'_dataEntry',

		    'template' => '{items}',

		));

$id = $listView->id;

?>

but the widget gets rendered at the moment of code execution. The CBaseController->widget has a third parameter, which when set to true, returns HTML of the widget to the variable, so I can output it when I want to. But that way I can’t get the ID of the widget.

Another solution would be to register the javascript after outputing it (and add a event handler to the button), but I am thinking maybe there’s a nicer way to do this?

Thank you

2

Viewing the source code, I saw that Yii adds jQuery’s undelegate function to the button before binding an event handler for the ajax button. Is it possible to prevent from this?

3

bump

4

Set the id rather than letting the widget auto-generate it:




$("input").click(function() {$.fn.yiiListView.update('myListView')});


$listView = $this->widget('zii.widgets.CListView', array(

      'id' => 'myListView',

      'dataProvider'=>$dataProvider,

      'itemView'=>'_dataEntry',

      'template' => '{items}',

   ));
5

http://www.yiiframework.com/doc/api/1.1/CBaseController#createWidget-detail







$widget = $this->createWidget('zii.widgets.CListView', array(

                    'dataProvider'=>$dataProvider,

                    'itemView'=>'_dataEntry',

                    'template' => '{items}',

                ));


$id = $widget->id;


$widget->run();