// Fix bug with switchlanguage durring install

git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@16187 b9a71923-0436-4b27-9f14-aed3839534dd

classes/Tools.php

@@ -378,6 +378,11 @@ class ToolsCore
 		if (!$context)
 			$context = Context::getContext();
 		
+		// Install call the dispatcher and so the switchLanguage
+		// Stop this method by checking the cookie
+		if (!isset($context->cookie))
+			return;
+
 		if (($iso = Tools::getValue('isolang')) && Validate::isLanguageIsoCode($iso) && ($id_lang = (int)Language::getIdByIso($iso)))
 			$_GET['id_lang'] = $id_lang;