diff --git a/app/decorators/tiding_decorator.rb b/app/decorators/tiding_decorator.rb
index c7d914089..30a325cd3 100644
--- a/app/decorators/tiding_decorator.rb
+++ b/app/decorators/tiding_decorator.rb
@@ -30,6 +30,7 @@ module TidingDecorator
   end
 
   def strip_html(text, len = 0, suffix = "...")
+    text = text.to_s
     str = ""
     if !text.nil? && text.length > 0
       str = text.gsub(/<\/?.*?>/, '').strip
diff --git a/app/models/apply_add_school.rb b/app/models/apply_add_school.rb
index bae65d24f..c303283ca 100644
--- a/app/models/apply_add_school.rb
+++ b/app/models/apply_add_school.rb
@@ -9,6 +9,7 @@ class ApplyAddSchool < ApplicationRecord
   private
 
   def send_notify
-    tidings.create!(user_id: 1, status: 0, trigger_user_id: user_id, belong_container: school, tiding_type: 'Apply')
+    Tiding.create!(user_id: 1, status: 0, container_id: id, container_type: 'ApplyAddSchools',
+                   trigger_user_id: user_id, belong_container: school, tiding_type: 'Apply')
   end
 end
\ No newline at end of file
diff --git a/db/migrate/20190802105008_tranfer_tiding_data.rb b/db/migrate/20190802105008_tranfer_tiding_data.rb
new file mode 100644
index 000000000..ef7682530
--- /dev/null
+++ b/db/migrate/20190802105008_tranfer_tiding_data.rb
@@ -0,0 +1,5 @@
+class TranferTidingData < ActiveRecord::Migration[5.2]
+  def change
+    Tiding.where(container_type: 'ApplyAddSchool').update_all(container_type: 'ApplyAddSchools')
+  end
+end
diff --git a/public/react/src/modules/courses/coursesPublic/Addcourses.js b/public/react/src/modules/courses/coursesPublic/Addcourses.js
index 8225907b8..a9d30f2b6 100644
--- a/public/react/src/modules/courses/coursesPublic/Addcourses.js
+++ b/public/react/src/modules/courses/coursesPublic/Addcourses.js
@@ -75,6 +75,7 @@ class Addcourses extends Component{
     if(e.target.checked===true){
       this.setState({
         assistant_professor:1,
+				professor:null,
         Checkboxteachingchecked:e.target.checked,
         Checkboxteachertype:true
       })
@@ -95,6 +96,7 @@ class Addcourses extends Component{
     if(e.target.checked===true){
       this.setState({
         professor:1,
+				assistant_professor:null,
         Checkboxteacherchecked:e.target.checked,
         Checkboxteachingtype:true
       })