I need to show labels(BACK ON STOCK) on product when they back to stock, for this I have added a observer
<global>
<events>
<catalog_product_save_commit_after>
<observers>
<Name_StockLabel_Model_Observer>
<type>singleton</type>
<class>Name_StockLabel_Model_Observer</class>
<method>backInStock</method>
</Name_StockLabel_Model_Observer>
</observers>
</catalog_product_save_commit_after>
</events>
</global>
and in observer am adding trying to add block
public function backInStock(Varien_Event_Observer $observer)
{
$product = $observer->getEvent()->getProduct();
$stock = Mage::getModel('cataloginventory/stock_item')->loadByProduct($product->getId());
$stockItem = $product->getStockItem();
if ($stockItem->getCanBackInStock() && $stockItem->getQty() > $stockItem->getMinQty() && $stockItem->getIsInStock()){
WANT TO ADD BLOCK HERE THAT WILL DISPLAY ON PRODUCT IN FRONTEND
}
}
Can anyone here advise me how can I add I block here