diff --git a/webapp/controller/HashRateShopController.class.php b/webapp/controller/HashRateShopController.class.php
index 65d7ac7a..2df85d2b 100644
--- a/webapp/controller/HashRateShopController.class.php
+++ b/webapp/controller/HashRateShopController.class.php
@@ -3,6 +3,7 @@
 require_once('services/HashRateShopService.php');
 require_once('mt/HashRateShop.php');
 require_once('mt/Item.php');
+require_once('model/HashRate.php');
 
 use mt;
 use phpcommon\SqlHelper;
@@ -59,18 +60,11 @@ class HashRateShop extends BaseAuthedController {
             myself()->_rspErr(1, "config error");
             return;
         }
-        $costItems = array(
-            array(
-                'item_id' => $costItemId,
-                'item_num' => $goodsNum * $price
-            )
-        );
-        $lackItem = null;
-        if (!myself()->_hasEnoughItems($costItems, $lackItem)) {
-            myself()->_rspErr(2, myself()->_getLackItemErrMsg($lackItem));
+        if ($price < model\HashRate::getMyCurrentHashRate) {
+            myself()->_rspErr(2, "hashrate not enough");
             return;
         }
-        ShopBuyRecord::add($goodsMeta['goods_id'], $goodsNum);
+        HashRateShopBuyRecord::add($goodsMeta['goods_id'], $goodsNum);
         myself()->_decItems($costItems);
         for ($i = 0; $i < $goodsNum; $i++) {
             $this->internalAddItem($awardService,