From a0b70e50294559fd18a7eaf32a3f5cf3c0e1062e Mon Sep 17 00:00:00 2001
From: wucongxing8150 <815046773@qq.com>
Date: Fri, 6 Jun 2025 09:37:35 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E4=BA=86dec=20inc=E7=9A=84?=
 =?UTF-8?q?=E5=AD=97=E6=AE=B5=E5=B0=8F=E4=BA=8E0=E7=9A=84=E9=97=AE?=
 =?UTF-8?q?=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/com/example/caseData/dao/CaseClinicalArticleDao.java | 4 +++-
 .../java/com/example/caseData/dao/StatsCaseClinicalDao.java   | 4 +++-
 .../com/example/caseData/dao/StatsCaseClinicalDoctorDao.java  | 4 +++-
 .../example/caseData/dao/StatsCaseClinicalHospitalDao.java    | 4 +++-
 4 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/main/java/com/example/caseData/dao/CaseClinicalArticleDao.java b/src/main/java/com/example/caseData/dao/CaseClinicalArticleDao.java
index c4b8787..a3bf51c 100644
--- a/src/main/java/com/example/caseData/dao/CaseClinicalArticleDao.java
+++ b/src/main/java/com/example/caseData/dao/CaseClinicalArticleDao.java
@@ -45,6 +45,8 @@ public interface CaseClinicalArticleDao extends BaseMapper<CaseClinicalArticleMo
      * @param numeral   减少的数值
      * @return 更新的行数
      */
-    @Update("UPDATE case_clinical_article SET ${field} = ${field} - #{numeral} WHERE article_id = #{articleId}")
+    @Update("UPDATE case_clinical_article " +
+            "SET ${field} = CASE WHEN ${field} >= #{numeral} THEN ${field} - #{numeral} ELSE 0 END " +
+            "WHERE article_id = #{articleId}")
     int dec(@Param("articleId") Long articleId, @Param("field") String field, @Param("numeral") int numeral);
 } 
\ No newline at end of file
diff --git a/src/main/java/com/example/caseData/dao/StatsCaseClinicalDao.java b/src/main/java/com/example/caseData/dao/StatsCaseClinicalDao.java
index c3d18df..2a63f5e 100644
--- a/src/main/java/com/example/caseData/dao/StatsCaseClinicalDao.java
+++ b/src/main/java/com/example/caseData/dao/StatsCaseClinicalDao.java
@@ -24,6 +24,8 @@ public interface StatsCaseClinicalDao extends BaseMapper<StatsCaseClinicalModel>
      * @param numeral   减少的数值
      * @return 更新的行数
      */
-    @Update("UPDATE stats_case_clinical SET ${field} = ${field} - #{numeral} WHERE stats_id = #{statsId}")
+    @Update("UPDATE stats_case_clinical " +
+            "SET ${field} = CASE WHEN ${field} >= #{numeral} THEN ${field} - #{numeral} ELSE 0 END " +
+            "WHERE stats_id = #{statsId}")
     int dec(@Param("statsId") Long articleId, @Param("field") String field, @Param("numeral") int numeral);
 }
\ No newline at end of file
diff --git a/src/main/java/com/example/caseData/dao/StatsCaseClinicalDoctorDao.java b/src/main/java/com/example/caseData/dao/StatsCaseClinicalDoctorDao.java
index 6e82dec..80a34c9 100644
--- a/src/main/java/com/example/caseData/dao/StatsCaseClinicalDoctorDao.java
+++ b/src/main/java/com/example/caseData/dao/StatsCaseClinicalDoctorDao.java
@@ -42,6 +42,8 @@ public interface StatsCaseClinicalDoctorDao extends BaseMapper<StatsCaseClinical
      * @param numeral   减少的数值
      * @return 更新的行数
      */
-    @Update("UPDATE stats_case_clinical_doctor SET ${field} = ${field} - #{numeral} WHERE doctor_id = #{doctorId}")
+    @Update("UPDATE stats_case_clinical_doctor " +
+            "SET ${field} = CASE WHEN ${field} >= #{numeral} THEN ${field} - #{numeral} ELSE 0 END " +
+            "WHERE doctor_id = #{doctorId}")
     int dec(@Param("doctorId") Long articleId, @Param("field") String field, @Param("numeral") int numeral);
 }
\ No newline at end of file
diff --git a/src/main/java/com/example/caseData/dao/StatsCaseClinicalHospitalDao.java b/src/main/java/com/example/caseData/dao/StatsCaseClinicalHospitalDao.java
index a8b95bb..ccfa94a 100644
--- a/src/main/java/com/example/caseData/dao/StatsCaseClinicalHospitalDao.java
+++ b/src/main/java/com/example/caseData/dao/StatsCaseClinicalHospitalDao.java
@@ -42,6 +42,8 @@ public interface StatsCaseClinicalHospitalDao extends BaseMapper<StatsCaseClinic
      * @param numeral   减少的数值
      * @return 更新的行数
      */
-    @Update("UPDATE stats_case_clinical_hospital SET ${field} = ${field} - #{numeral} WHERE hospital_id = #{hospitalId}")
+    @Update("UPDATE stats_case_clinical_hospital " +
+            "SET ${field} = CASE WHEN ${field} >= #{numeral} THEN ${field} - #{numeral} ELSE 0 END " +
+            "WHERE hospital_id = #{hospitalId}")
     int dec(@Param("hospitalId") Long articleId, @Param("field") String field, @Param("numeral") int numeral);
 }
\ No newline at end of file