I use the shipping estimate in the cart page and select a country, for example Ethiopia. How can I use this country as default in the (billing + shipping) address in the checkout?

1 Answer 1


Hook into \Mage_Checkout_CartController::estimatePostAction and set the countryId() in the billing address to the specified country.

 * Use the country from the shipping estimator in the checkout
 * @event controller_action_predispatch_checkout_cart_estimatePost
 * @param Varien_Event_Observer $observer
public function controllerActionPredispatchCheckoutCartEstimatePost(Varien_Event_Observer $observer)
    $request = $observer->getControllerAction()->getRequest();
    $country = (string) $request->getParam('country_id');
    $cart = Mage::getSingleton('checkout/cart');

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