作业提交截止后，未提交作品的学生看到的作业动态将显示“补交作品”

app/helpers/application_helper.rb

@@ -2374,8 +2374,10 @@ module ApplicationHelper
         link_to "作品(#{homework.student_works.count})",student_work_index_path(:homework => homework.id),:class => "c_blue"
       else #学生显示提交作品、修改作品等按钮
         work = cur_user_works_for_homework homework
-        if work.nil?
+        if work.nil? && Time.parse(homework.end_time.to_s).strftime("%Y-%m-%d") >= Time.now.strftime("%Y-%m-%d")
           link_to "提交作品(#{homework.student_works.count})",  new_student_work_path(:homework => homework.id),:class => 'c_blue'
+        elsif work.nil? && Time.parse(homework.end_time.to_s).strftime("%Y-%m-%d") < Time.now.strftime("%Y-%m-%d")
+          link_to "补交作品(#{homework.student_works.count})",  new_student_work_path(:homework => homework.id),:class => 'c_red'
         else
           if homework.homework_detail_manual && homework.homework_detail_manual.comment_status == 2 #匿评作业，且作业状态不是在开启匿评之前
             link_to "作品匿评", student_work_index_path(:homework => homework.id), :class => 'c_blue', :title => "开启匿评后不可修改作品"