public function render(Varien_Object $row) { /** @var $row Inchoo_Fiskalizacija_Model_Invoice */ $url = null; if ($row->getParentEntityType() == Inchoo_Fiskalizacija_Model_Observer::FISCAL_EVENT_TYPE_INVOICE) { $url = $this->getUrl('*/sales_invoice/view', array('invoice_id' => $row->getParentEntityId())); } if ($row->getParentEntityType() == Inchoo_Fiskalizacija_Model_Observer::FISCAL_EVENT_TYPE_CREDITMEMO) { $url = $this->getUrl('*/sales_creditmemo/view', array('creditmemo_id' => $row->getParentEntityId())); } $html = sprintf('<a href="%s" target="_blank">%s</a>', $url, $row->getParentEntityId()); return $html; }