clear order and consumed coupon in session after processing order. Fix #162

core/lib/Thelia/Action/Coupon.php

@@ -263,6 +263,8 @@ class Coupon extends BaseAction implements EventSubscriberInterface
                 $orderCoupon->save();
             }
         }
+
+        $request->getSession()->setConsumedCoupons(array());
     }
 
     /**

core/lib/Thelia/Action/Order.php

@@ -287,7 +287,8 @@ class Order extends BaseAction implements EventSubscriberInterface
         $sessionOrder = new \Thelia\Model\Order();
         $event->setOrder($sessionOrder);
         $event->setPlacedOrder($placedOrder);
-        $this->getSession()->setOrder($placedOrder);
+        $this->getSession()->setProcessedOrder($placedOrder);
+        $this->getSession()->setOrder(new \Thelia\Model\Order());
 
         /* empty cart */
         $this->getDispatcher()->dispatch(TheliaEvents::CART_CLEAR, new CartEvent($this->getCart($this->getRequest())));

core/lib/Thelia/Core/HttpFoundation/Session/Session.php

@@ -253,6 +253,26 @@ class Session extends BaseSession
         return $this->get("thelia.order");
     }
 
+    /**
+     * @param Order $order
+     * @return $this
+     */
+    public function setProcessedOrder(Order $order)
+    {
+        $this->set('thelia.order.processed', $order);
+
+        return $this;
+    }
+
+    /**
+     * Return an order already processed, usefull for payment modules
+     * @return Order
+     */
+    public function getProcessedOrder()
+    {
+        return $this->get('thelia.order.processed');
+    }
+
     /**
      * Set consumed coupons by the Customer
      *