修改sale

@@ -13,13 +13,15 @@ class SaleController extends WebAction
     public function indexAction() 
     {
         //获取专区ID
-        $specialsaleId = $this->param('specialsaleId');
+        $specialsaleId = $this->get('specialsale_id');
         $specialInfo = SaleData::getSpecial($specialsaleId);
+        if(isset($specialInfo['data'])) {
             $special = $specialInfo['data'];
-        
+        } else {
+            $special = array();
+        }
         //获取促销ID
-        $promotion = $this->param('promotion');
-        
+        $promotion = $this->get('promotion');
         //专区ID和促销ID都为空时，跳转到主页
         if (empty($specialsaleId) && empty($promotion)) {
             $this->go(SITE_MAIN);