作业列表按作业发布时间排序

app/controllers/homework_common_controller.rb

@@ -17,9 +17,9 @@ class HomeworkCommonController < ApplicationController
     @page = params[:page] ? params[:page].to_i + 1 : 0
     @is_teacher = User.current.logged? && (User.current.admin? || User.current.allowed_to?(:as_teacher,@course))
     if @is_teacher
-      @homeworks = @course.homework_commons.order("updated_at desc").limit(10).offset(@page * 10)
+      @homeworks = @course.homework_commons.order("created_at desc").limit(10).offset(@page * 10)
     else
-      @homeworks = @course.homework_commons.where("publish_time <= '#{Date.today}'").order("updated_at desc").limit(10).offset(@page * 10)
+      @homeworks = @course.homework_commons.where("publish_time <= '#{Date.today}'").order("created_at desc").limit(10).offset(@page * 10)
     end
     @is_student = User.current.logged? && (User.current.admin? || (User.current.member_of_course?(@course) && !@is_teacher))
     @is_new = params[:is_new]