Yii booster - renderPartial the data-content of a popover?

Question

I'm using Yii with YiiBooster extension. I want to have a popover like this:

array(
        'header' => '',
        'value' => function($data)
        {
            $this->widget('bootstrap.widgets.TbButton', array(
                'label'=>'Inne',
                'type'=>'primary',
                'size' => 'mini',
                'htmlOptions'=>array(
                    'data-placement'=>'right', 
                    'data-content'=> "Controller::renderPartial('_statButtons', 
                                      array('data' => $data->idProject));", 
                    'rel'=>'popover'
                ),
            ));
        }
    ),

This is inside the cell of the gridview. I would like to use renderPartial to render a file with some content but above code is not working. How can I achieve it?

EDIT: if the code exucutes (my code or the @Ruslans code) it is the result:

Here is the text from the _statButtons partial file. End of this file.
<a id="yw2" class="btn btn-primary btn-mini" rel="popover" 
   data-placement="right" data-original-title="" title="">Inne</a>

Answer 1

bellow code works. I use PHP 5.3

'value' => function($data) use($controller)
{
    $controller->widget('bootstrap.widgets.TbButton', array(
        'label'=>'Inne',
        'type'=>'primary',
        'size' => 'mini',
        'htmlOptions'=>array(
            'data-placement'=>'right',
            'data-content'=> $controller->renderPartial('_test',
                      array('data' => $data->title), true),
            'rel'=>'popover'
        ),
    ));
}

where $controller is just reassignment of $this var before CGridView widget is rendered.

$controller=$this;

because in PHP 5.3 closures don't have access to $this var

As far as I remember, PHP 5.4 can access $this.

Calling Controller::renderPartial(.... - bad approach, because renderPartial is not a static function, but called statically. And it should raise error, unless you turned them off.