From 8c4c765372db7d811189fb943434646edf09cd2d Mon Sep 17 00:00:00 2001
From: zengh <123456>
Date: Mon, 04 Jul 2022 08:53:32 +0800
Subject: [PATCH] 数据库地址修改

---
 src/main/java/org/springblade/modules/farmplant/mapper/FarmProductStockMapper.xml |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/src/main/java/org/springblade/modules/farmplant/mapper/FarmProductStockMapper.xml b/src/main/java/org/springblade/modules/farmplant/mapper/FarmProductStockMapper.xml
index 10e2ee0..50aed43 100644
--- a/src/main/java/org/springblade/modules/farmplant/mapper/FarmProductStockMapper.xml
+++ b/src/main/java/org/springblade/modules/farmplant/mapper/FarmProductStockMapper.xml
@@ -90,4 +90,24 @@
             and sfps.tenant_id = #{farmProductStock.tenantId}
         </if>
     </select>
+
+    <!--销售对比库存是否充足-->
+    <select id="stockCompare" resultType="boolean">
+        SELECT
+        CASE
+            WHEN
+                weight > #{sale} THEN
+                TRUE ELSE FALSE
+                END result
+        FROM
+            sys_farm_product_stock
+        WHERE
+            strain_id = #{id}
+    </select>
+    <!--减去对应库存-->
+    <update id="stockReduce">
+        UPDATE sys_farm_product_stock SET weight = weight - #{sale}
+        WHERE
+            strain_id = #{id}
+    </update>
 </mapper>

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