判断shopId和brandId是否存在

@@ -15,6 +15,11 @@ shopCoupon = {
         couponTemplate: require('product/shop/coupon.hbs')
     },
     init: function() {
+        // 如果都为空，则不请求
+        if (this.common.shopId === '' && this.common.brandId === '') {
+            return true;
+        }
+
         this.loginCoupon();
         this.getShopCouponsList();
     },