protected function _prepareMassaction()
{
$this->getMassactionBlock()->setFormFieldName('ids');
$ids = $this->getRequest()->getPost($this->getMassactionBlock()->getFormFieldNameInternal());
if ($this->getRequest()->isXmlHttpRequest() && !$this->getRequest()->getParam('category_change')) {
return parent::_prepareMassaction();
}
$ids = array_filter(explode(',', $ids));
$ids = array_merge($ids, $this->getSelectedIds());
$ids = array_intersect($ids, $this->getCollectionIds());
$ids = array_values(array_unique($ids));
$this->getRequest()->setPost($this->getMassactionBlock()->getFormFieldNameInternal(), implode(',', $ids));
return parent::_prepareMassaction();
}
