How do you add a button to a CGridView?

Question

Sounds simple, right? I've searched high and low and I can't find out how to do this. I have a CGridView:

$dataProvider = new CArrayDataProvider ($auctions);
$this->widget('zii.widgets.grid.CGridView', array(
  'dataProvider'=>$dataProvider,
  'columns'=>array(
    'id::ID',
    'product.title::Title',
    'state::Status',
  ),
));

I want to add a fourth column that only contains a simple button that will execute javascript when pressed. I've tried:

array(
  'class' => 'CButtonColumn',
),

This just gives me an error:

Undefined property: stdClass::$primaryKey

Any ideas?

Answer 1

Try this:

$dataProvider = new CArrayDataProvider ($auctions);
$this->widget('zii.widgets.grid.CGridView', array(
  'dataProvider'=>$dataProvider,
  'columns'=>array(
    'id::ID',
    'product.title::Title',
    'state::Status',
     array(
         'type' => 'raw',
         'value' => '<button onclick=\'alert("It works!")\' value="clickme"/>'
     )
  ),
));