fix tax engine instance

2013-12-02 13:16:14 +01:00
parent fcde523b73
commit 9b165483d9
1 changed files with 5 additions and 2 deletions
--- a/core/lib/Thelia/TaxEngine/TaxEngine.php
+++ b/core/lib/Thelia/TaxEngine/TaxEngine.php
@@ -42,13 +42,16 @@ class TaxEngine
     */
    protected $session = null;

-    static public function getInstance(Session $session)
+    static public function getInstance(Session $session = null)
    {
        if(null === self::$instance) {
            self::$instance = new TaxEngine();
        }

-        self::$instance->setSession($session);
+        if(null !== self::$instance) {
+            self::$instance->setSession($session);
+        }
+
        return self::$instance;
    }