diff --git a/Teachers/dao/tea_dao.py b/Teachers/dao/tea_dao.py
index 0b3e152..1820930 100644
--- a/Teachers/dao/tea_dao.py
+++ b/Teachers/dao/tea_dao.py
@@ -50,8 +50,8 @@ def get_tea_dao(t,db):
         query = query.filter(Tea.sex == t.get('sex') )
     if t.get('class_id'):
         query = query.filter(Tea.class_id == t.get('class_id') )
-    if t.get('sub'):
-        query = query.filter(Tea.sub == t.get('sub') )
+    if t.get('subject_id'):
+        query = query.filter(Tea.subject_id == t.get('subject_id') )
     if t.get('home_place'):
         query = query.filter(Tea.home_place == t.get('home_place') )
     if t.get('specialty'):
@@ -67,7 +67,7 @@ def get_tea_dao(t,db):
     if t.get('phone'):
         query = query.filter(Tea.phone == t.get('phone') )
     r = query.all()
-    return [{'id':i.id,'name':i.name,'class_id':i.class_id,'sub':i.sub,'sex':i.sex,'home_place':i.home_place
+    return [{'id':i.id,'name':i.name,'class_id':i.class_id,'sub':i.subject_id,'sex':i.sex,'home_place':i.home_place
                 ,'specialty':i.specialty,'start_time':i.start_time,'work_experience':i.work_experience
                 ,'collage':i.collage,'phone':i.phone} for i in r]
 
@@ -98,8 +98,8 @@ def delete_other_tea_dao(t,db):
             query1 = query1.filter(Tea.sex == t.get('sex'))
         if t.get('class_id'):
             query1 = query1.filter(Tea.class_id == t.get('class_id'))
-        if t.get('sub'):
-            query1 = query1.filter(Tea.sub == t.get('sub'))
+        if t.get('subject_id'):
+            query1 = query1.filter(Tea.subject_id == t.get('subject_id'))
         if t.get('home_place'):
             query1 = query1.filter(Tea.home_place == t.get('home_place'))
         if t.get('collage'):