public function render(Varien_Object $filter) { /** @var Amasty_Shopby_Model_Filter $filter */ $url = $this->helper('adminhtml')->getUrl('adminhtml/catalog_product_attribute/edit', array('attribute_id' => $filter->getAttributeId())); return $filter->getAttributeCode() . ' <a href="' . $url . '" style="float:right;"><button type="button">Edit Attribute</button></a>'; }