加入购物车判断库存

go/gopath/src/fohow.com/apps/controllers/order_controller/cart_controller.go

@@ -24,6 +24,9 @@ func (self *OrderController) CreateCart() {
 	if product == nil {
 		self.ReturnError(403, apps.NoExist, "", nil)
 	}
+	if count > product.Count {
+		self.ReturnError(403, apps.ProductStockNotEnough, "", nil)
+	}
 	uId := self.GetCurrentUserId()
 	wxUId := self.GetCurrentWxUserId()