实践课程删除实训

app/controllers/admins/laboratory_subjects_controller.rb

@@ -17,6 +17,7 @@ class Admins::LaboratorySubjectsController < Admins::BaseController
   def destroy
     return render_js_error('不能删除自建课程', type: :notify) if current_laboratory_subject.ownership?
 
+    ActiveRecord::Base.transaction do
       current_subject = current_laboratory_subject.subject
       current_subject.shixuns.each do |shixun|
         shixun.destroy!
@@ -25,6 +26,7 @@ class Admins::LaboratorySubjectsController < Admins::BaseController
 
       render_delete_success
     end
+  end
 
 
   def homepage