1、返还批阅的附件可以删除并且js刷新

2、学生可以在作品show界面删除自己的作业的附件

app/controllers/attachments_controller.rb

@@ -191,9 +191,15 @@ class AttachmentsController < ApplicationController
       if !@attachment.container.nil? &&
          (@attachment.container.is_a?(Course) || ((@attachment.container.has_attribute?(:course) || @attachment.container.has_attribute?(:course_id) )  &&
          @attachment.container.course ) || ((@attachment.container.has_attribute?(:board) || @attachment.container.has_attribute?(:board_id)) &&
-         @attachment.container.board && @attachment.container.board.course ) )
+         @attachment.container.board && @attachment.container.board.course ) || @attachment.container.is_a?(StudentWorksScore) ||  @attachment.container.is_a?(HomeworkCommon))
         if @attachment.container.is_a?(News)
           format.html { redirect_to_referer_or news_path(@attachment.container) }
+        elsif @attachment.container.is_a?(StudentWorksScore)
+          @is_destroy = true #根据ID删除页面对应的数据，js刷新页面
+          format.js
+        elsif @attachment.container.is_a?(HomeworkCommon)
+          @is_destroy = true #根据ID删除页面对应的数据，js刷新页面
+          format.js
         elsif @attachment.container.is_a?(Message)
           format.html { redirect_to_referer_or new_board_message_path(@attachment.container) }
         elsif @course.nil?
@@ -431,7 +437,7 @@ 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'|| @attachment.container_type == 'StudentWorks'
+      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 == 'StudentWork'
         @project = @attachment.project
       end
     end

app/controllers/homework_attach_controller.rb

@@ -334,9 +334,8 @@ class HomeworkAttachController < ApplicationController
       @homework.name = name
       @homework.description = description
       @homework.project_id = params[:project_id] || 0
-      if params[:attachments]
       @homework.save_attachments(params[:attachments])
-      end
+      render_attachment_warning_if_needed(@homework)
       if @homework.save
         respond_to do |format|
           format.html { redirect_to course_for_bid_url @homework.bid }

app/controllers/homework_common_controller.rb

@@ -101,6 +101,9 @@ class HomeworkCommonController < ApplicationController
     @homework_detail_manual.evaluation_num = params[:evaluation_num]
     @homework_detail_manual.absence_penalty = params[:absence_penalty]
 
+    @homework.save_attachments(params[:attachments])
+    render_attachment_warning_if_needed(@homework)
+
     if @homework.save && @homework_detail_manual.save
       respond_to do |format|
         format.html {

app/views/attachments/destroy.js.erb

@@ -1,3 +1,6 @@
+<% if @is_destroy%>
+    $("#attachment_<%= @attachment.id%>").remove();
+<%else%>
     var attachment_html_obj = $('#attachments_<%= j params[:attachment_id] %>');
     //modify by yutao 2015-5-14  当1个页面存在多个上传控件时此块代码存在bug  故改之  start
     var containerid=$('.remove-upload',attachment_html_obj).data('containerid');
@@ -24,3 +27,4 @@ if(containerid==undefined){
         }
     }
     //modify by yutao 2015-5-14  当1个页面存在多个上传控件时此块代码存在bug  故改之  end
+<% end%>

app/views/student_work/_work_attachments.html.erb

@@ -1,5 +1,8 @@
-<% for attachment in attachments %>
+<% attachments.each_with_index do |attachment,i| %>
+    <div id="attachment_<%= attachment.id%>">
       <%= link_to_short_attachment attachment, :class => 'link_file', :download => true -%>
+      <%= link_to('&nbsp;'.html_safe, attachment_path(attachment, :format => 'js'), :method => 'delete', :remote => true, :class => 'remove-upload') if attachment.id && User.current == attachment.author %>
       <span class="ml5">(<%= number_to_human_size attachment.filesize %>)</span>
       <div class="cl"></div>
+    </div>
 <% end -%>