From 69a72cd5558656d63268c00c897b90233a7897a1 Mon Sep 17 00:00:00 2001
From: gmorel <kahn@gmx.com>
Date: Sat, 23 Nov 2013 23:23:58 +0100
Subject: [PATCH] Coupon : Add ability to know usage left after decremental

---
 core/lib/Thelia/Coupon/CouponManager.php | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/core/lib/Thelia/Coupon/CouponManager.php b/core/lib/Thelia/Coupon/CouponManager.php
index 145bc60f2..ea41a4f03 100644
--- a/core/lib/Thelia/Coupon/CouponManager.php
+++ b/core/lib/Thelia/Coupon/CouponManager.php
@@ -237,20 +237,21 @@ class CouponManager
      *
      * @param \Thelia\Model\Coupon $coupon Coupon consumed
      *
-     * @return bool
+     * @return int Usage left after decremental
      */
     public function decrementQuantity(Coupon $coupon)
     {
-        $ret = true;
+        $ret = -1;
         try {
 
-        $oldMaxUsage = $coupon->getMaxUsage();
+        $usageLeft = $coupon->getMaxUsage();
 
-        if ($oldMaxUsage > 0) {
-            $oldMaxUsage--;
-            $coupon->setMaxUsage($oldMaxUsage);
+        if ($usageLeft > 0) {
+            $usageLeft--;
+            $coupon->setMaxUsage($usageLeft);
 
             $coupon->save();
+            $ret = $usageLeft;
         }
 
         } catch(\Exception $e) {