调整

app/controllers/courses_controller.rb

@@ -128,8 +128,8 @@ class CoursesController < ApplicationController
   # POST /courses
   # POST /courses.json
   def create
-    ActiveRecord::Base.transaction do
     begin
+      ActiveRecord::Base.transaction do
         @course = Course.new(name: params[:name], class_period: params[:class_period], credit: params[:credit],
                              end_date: params[:end_date], is_public: params[:is_public], school_id: @school.id,
                              authentication: params[:authentication], professional_certification: params[:professional_certification])
@@ -166,8 +166,6 @@ class CoursesController < ApplicationController
               CourseMember.create!(course_id: @course.id, user_id: s_member.user_id, role: 2)
             end
 
-            CreateSubjectCourseStudentJob.perform_later(@course.id) if @course.subject.subject_appointments.count > 0
-
             Inform.create(container: @course, description: @subject.learning_notes, name: "学习须知")
 
             @course.create_stages @course.subject
@@ -176,13 +174,14 @@ class CoursesController < ApplicationController
           course_module_types = params[:course_module_types]
           @course.create_course_modules(course_module_types)
         end
+      end
+      CreateSubjectCourseStudentJob.perform_later(@course.id) if @course.subject && @course.subject.subject_appointments.count > 0
     rescue => e
       uid_logger_error(e.message)
       tip_exception(e.message)
       raise ActiveRecord::Rollback
     end
   end
-  end
 
   # PATCH/PUT /courses/1
   # PATCH/PUT /courses/1.json

app/jobs/create_subject_course_student_job.rb

@@ -14,10 +14,9 @@ class CreateSubjectCourseStudentJob < ApplicationJob
         Rails.logger.info("##{course.students.where(user_id: app.user_id)}")
         next if course.students.where(user_id: app.user_id).any?
         worker.add same_attrs.merge(user_id: app.user_id)
-        app.destroy
       end
     end
-    # Rails.logger.info("2:course.students.count:##{course.students.count}")
-    # course.subject.subject_appointments.destroy_all
+    Rails.logger.info("2:course.students.count:##{course.students.count}")
+    course.subject.subject_appointments.destroy_all
   end
 end