1、老师和同课程的学生有权限下周作品附件

2、作品附件下载成功之后消失

app/controllers/attachments_controller.rb

@@ -428,7 +428,7 @@ private
         @attachment.container.board.course)
       @course = @attachment.container.board.course
     else
-      unless @attachment.container_type == 'Bid' || @attachment.container_type == 'HomeworkAttach' || @attachment.container_type == 'Memo' || @attachment.container_type == 'Softapplication' || @attachment.container_type == 'PhoneAppVersion' || @attachment.container_type = 'StudentWorksScore'
+      unless @attachment.container_type == 'Bid' || @attachment.container_type == 'HomeworkAttach' || @attachment.container_type == 'Memo' || @attachment.container_type == 'Softapplication' || @attachment.container_type == 'PhoneAppVersion' || @attachment.container_type == 'StudentWorksScore'|| @attachment.container_type == 'StudentWorks'
         @project = @attachment.project
       end
     end

app/helpers/application_helper.rb

@@ -1844,7 +1844,11 @@ module ApplicationHelper
           attachment.container.board.course
         course = attachment.container.board.course
         candown= User.current.member_of_course?(course) || (course.is_public==1 && attachment.is_public == 1)
-      elsif attachment.container.class.to_s=="HomeworkAttach" && attachment.container.bid.reward_type == 3
+      elsif attachment.container.class.to_s=="HomeworkAttach"
+        candown = true
+      elsif attachment.container.class.to_s=="StudentWorksScore"
+        candown = true
+      elsif attachment.container.class.to_s=="StudentWork"
         candown = true
       elsif  attachment.container_type == "Bid" && attachment.container && attachment.container.courses
         course = attachment.container.courses.first