how to show "Yes/No" CGridView yii depending on the flag field 0/1?
===

I am stuck in a problem in CGridView yii, my refund field show 0/1 but I want to show "Yes" if 0 and "No" if 1, without using any second table.

    $this->widget('zii.widgets.grid.CGridView', array(
	'id'=>'transaction-grid',
	'dataProvider'=>$model->search(),
	'filter'=>$model,
	'columns'=>array(
		'id',
		'member_id',
		 array(
            'header' => 'MemberName',
            'name' => 'member_id',
            'value' => '$data->member->f_name'
        ),
	
		'refund',
		'band_id',
		
		array(
			'class'=>'CButtonColumn',
			'template'=>'{view}',
		),
	),
));