diff --git a/webapp/models/HashRateShopBuyRecord.php b/webapp/models/HashRateShopBuyRecord.php
index 8acd33c0..072d8521 100644
--- a/webapp/models/HashRateShopBuyRecord.php
+++ b/webapp/models/HashRateShopBuyRecord.php
@@ -75,17 +75,17 @@ class HashRateShopBuyRecord extends BaseModel
                 'this_day_buy_times' => function () use($goodsNum) {
                     $nowDaySeconds = myself()->_getNowDaySeconds();
                     $cond = " last_buy_time>=${nowDaySeconds} AND last_buy_time<=${nowDaySeconds} + 3600 * 24 ";
-                    return "CASE WHEN (${cond}) THEN this_day_buy_times + ${goodsNum} ELSE 0 END";
+                    return "CASE WHEN (${cond}) THEN this_day_buy_times + ${goodsNum} ELSE ${goodsNum} END";
                 },
                 'this_week_buy_times' => function () use($goodsNum) {
                     $mondaySeconds = myself()->_getMondaySeconds();
                     $cond = " last_buy_time>=${mondaySeconds} AND last_buy_time<=${mondaySeconds} + 3600 * 24 * 7 ";
-                    return "CASE WHEN (${cond}) THEN this_week_buy_times + ${goodsNum} ELSE 0 END";
+                    return "CASE WHEN (${cond}) THEN this_week_buy_times + ${goodsNum} ELSE ${goodsNum} END";
                 },
                 'this_month_buy_times' => function () use($goodsNum) {
                     $monthFirstDaySeconds = myself()->_getMonthFirstDaySeconds();
                     $cond = " last_buy_time>=${monthFirstDaySeconds} ";
-                    return "CASE WHEN (${cond}) THEN this_month_buy_times + ${goodsNum} ELSE 0 END";
+                    return "CASE WHEN (${cond}) THEN this_month_buy_times + ${goodsNum} ELSE ${goodsNum} END";
                 },
                 'total_buy_times' => function () use($goodsNum) {
                     return "total_buy_times + ${goodsNum}";