From 957e826e0f1187795265b54d57cc03a194563f11 Mon Sep 17 00:00:00 2001
From: 00MSJ1122 <1253313142@qq.com>
Date: Tue, 22 Sep 2026 14:58:51 +0800
Subject: [PATCH] 1

---
 PythonProject/api/student_api.py |  7 ++++++-
 PythonProject/dao/student_dao.py | 29 +++++++++++++++++++++--------
 2 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/PythonProject/api/student_api.py b/PythonProject/api/student_api.py
index 3b1bb2b..2cf2f1d 100644
--- a/PythonProject/api/student_api.py
+++ b/PythonProject/api/student_api.py
@@ -32,11 +32,16 @@ def update_students(s:StudentRequest
                     ,stu_id:int
                     ,db=Depends(get_db)):
     d = s.model_dump(exclude_unset=True)
+    d.pop('stu_id', None)
     if not d:
         raise HTTPException(status_code=400, detail='更新内容不能为空')
     r = update_student_dao( stu_id=stu_id,update_data=d,db=db )
+    if r == 'conflict':
+        raise HTTPException(status_code=409, detail = '身份证号已被其他学生占用')
+    if r == 'error':
+        raise HTTPException(status_code=500, detail='更新失败，请稍后重试')
     if not r:
-        raise HTTPException(status_code=500, detail='没有更新')
+        raise HTTPException(status_code=404, detail='没有更新')
     return {'code':200,'totals':r,'detail':'更新成功'}
 
 @StudentAPI.delete('/{stu_id}',summary='学生信息删除接口',description='删除学生信息')
diff --git a/PythonProject/dao/student_dao.py b/PythonProject/dao/student_dao.py
index 0822d9d..d947d0d 100644
--- a/PythonProject/dao/student_dao.py
+++ b/PythonProject/dao/student_dao.py
@@ -36,16 +36,29 @@ def delete_student_dao(stu_id,db):
         return rows
 
 def update_student_dao(stu_id,update_data,db):
+    if update_data.get('id_card'):
+        conflict = (db.query(Student_Model)
+                    .filter(Student_Model.id_card == update_data['id_card'],
+                            Student_Model.stu_id != stu_id,
+                            Student_Model.delete_status == 0)
+                    .first())
+        if conflict:
+            return 'conflict'
+
     try:
-        rows=(db.query(Student_Model)
-              .fiter(Student_Model.stu_id == stu_id,Student_Model.delete_status == 0)
-              .update(update_data))
-    except:
-        db.rollback()
-        return False
-    else:
+        rows = (db.query(Student_Model)
+                .filter(Student_Model.stu_id == stu_id,
+                        Student_Model.delete_status == 0)
+                .update(update_data))
         db.commit()
-        return rows
+    except IntegrityError:
+        db.rollback()
+        return 'conflict'
+    except Exception:
+        db.rollback()
+        return 'error'
+
+    return rows
 
 def get_student_dao(stu_id:Optional[int]
                    ,stu_name:Optional[str]