Hello friends
how I can change my current selected payment method using obbserver after clicking place order if grand total is zero
On my checkout page user first select payment method & then order review there is option for add coupon code. On place order if my grand total is zero then what i want is to change payment method to "free" from "paypal"
How i can do this please help. My code sample is attached here
/****** config.xml ************/
<frontend>
<events>
<sales_order_place_before>
<observers>
<change_payment_method_on_zero>
<type>singleton</type>
<class>Obbserv_Discountcouponcheckout_Model_Observer</class>
<method>changePaymentMethodOnZero</method>
</change_payment_method_on_zero>
</observers>
</sales_order_place_before>
</events>
</frontend>/********** Obbserver.php *************/
class Obbserv_Discountcouponcheckout_Model_Observer
{
public function changePaymentMethodOnZero(Varien_Event_Observer $observer)
{
$order = $observer->getEvent()->getOrder();
if($order->getGrandTotal() == 0)
{
$payment = $order->getPayment();
$payment->setMethod('free');
$payment->save();
}
}
}
But this code did not work as desire. Also record is even not updating in "sales_flat_quote_payment" table
.
