fix tiding

app/models/student_graduation_topic.rb

@@ -21,7 +21,7 @@ class StudentGraduationTopic < ApplicationRecord
 
   def send_tiding
     self.tidings << Tiding.new(:user_id => self.graduation_topic.tea_id, :trigger_user_id => self.user_id, :parent_container_id => self.graduation_topic_id, :parent_container_type => "GraduationTopic",
-                               :belong_container_id => self.graduation_topic.course_id, :belong_container_type => "Course", :viewed => 0, :status => 0, :tiding_type => "GraduationTopic")
+                               :belong_container_id => self.graduation_topic.course_id, :belong_container_type => "Course", :viewed => 0, :status => 0, :tiding_type => "Apply")
   end
 
   # 学生名称