加更改时提交空值不覆盖

Teachers/api/tea_api.py

@@ -32,6 +32,7 @@ def delete_tea(id:int|None,db=Depends(get_db)):
 @tea_api.put('/tea/{id}', summary='更新老师信息', description='输入更改的信息，可以为空')
 def update_tea(id: int, tea: NewTeaRequest = Depends(), db=Depends(get_db)):
     t = tea.model_dump(exclude_unset=True)
+    print(t)
     r = update_tea_dao(id=id, t=t, db=db)
     if r == 'NOT_FOUND':
         raise HTTPException(status_code=404, detail='老师不存在')
@@ -39,6 +40,7 @@ def update_tea(id: int, tea: NewTeaRequest = Depends(), db=Depends(get_db)):
         raise HTTPException(status_code=400, detail='没有要更新的内容')
     if isinstance(r, str) and r.startswith('ERROR'):
         raise HTTPException(status_code=400, detail=r)
+        #先确认是字符串再调用字符串方法判断是不是以错误开头，是就报错给前端
     return {'detail': '更新成功'}
 
 #根据任意信息删除

Teachers/dao/tea_dao.py

@@ -39,7 +39,7 @@ def update_tea_dao(id, t, db):
         if not obj:
             return 'NOT_FOUND'
         for k, v in t.items():
-            if hasattr(obj, k):
+            if hasattr(obj, k) and v is not None and v != '':
                 setattr(obj, k, v)
         db.commit()
         return 'OK'