shop:onOrderBeforeCreate event
The shop:onOrderBeforeCreate event allows you to alter the checkout information or cart content before an order is placed. This event is fired only when an order is placed from the front-end website. If you create an order in the Administration Area, the event is not triggered. The event handler should accept a single parameter - the cart name.
Event handler example:
public function subscribeEvents()
{
Backend::$events->addEvent('shop:onOrderBeforeCreate', $this, 'process_order');
}
public function process_order($cart_name)
{
$price = Shop_Cart::total_price($cart_name);
if ($price < 100)
throw new Phpr_ApplicationException('We are sorry,
you cannot place orders with total order amount less then 100 USD');
}Next: shop:onUpdateCartItemPrice event
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