diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 932550e42..da29c713f 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -318,6 +318,21 @@ class CoursesController < ApplicationController
     end
   end
 
+  def restartcourse
+    day = Time.parse("3000-01-01")
+
+    @course_prefs.endup_time = day
+    @save_flag = @course_prefs.save
+
+    respond_to do |format|
+      format.js {
+        render action:'finishcourse'
+      }
+    end
+  end
+
+
+
   private
 
   def allow_join
diff --git a/app/views/courses/finishcourse.js.erb b/app/views/courses/finishcourse.js.erb
index bfbaee70f..025edb056 100644
--- a/app/views/courses/finishcourse.js.erb
+++ b/app/views/courses/finishcourse.js.erb
@@ -1,6 +1,6 @@
 <% if @save_flag %>
 	<% if Rails.env.development? %>
-	console.debug('课程修改成功：结束时间改为<%=Course.find_by_extra(@project.extra).try(:endup_time)%>');
+	console.debug('课程修改成功：结束时间改为<%=Course.find_by_extra(@course.extra).try(:endup_time)%>');
 	<% end %>
 	$('#finish_course_<%=@course.id%>').replaceWith("<%= j(render partial: 'courses/set_course_time', :locals => {:course => @course} )%>")
 <% else %>