老师给学生的作品打分后，学生再次编辑，要给老师和助教发消息提示

app/controllers/student_work_controller.rb

@@ -63,6 +63,13 @@ class StudentWorkController < ApplicationController
         homework_message.update_attributes(:viewed => true) if homework_message.viewed == 0
       end
     end
+
+    #修改作品提示消息更新
+    student_work_messages = CourseMessage.where("user_id =? and course_id =? and course_message_type =? and viewed =?", User.current.id, @homework.course, StudentWork.name, 0)
+    student_work_messages.each do |message|
+      message.update_attribute(:viewed, true)
+    end
+
     # 作品打分消息状态更新
     studentworks_scores = CourseMessage.where("user_id =? and course_id =? and course_message_type =? and viewed =?", User.current.id, @homework.course, "StudentWorksScore", 0)
     studentworks_scores.each do |studentworks_score|
@@ -369,6 +376,8 @@ class StudentWorkController < ApplicationController
       @work.save_attachments(params[:attachments])
       render_attachment_warning_if_needed(@work)
       if @work.save
+        #如果学生作品被打分后修改，应该给老师提示
+        send_message_to_teacher(@work)
         if @homework.homework_type == 3
           @student_work_project = @homework.student_work_projects.where("user_id=?",User.current.id).first
           student_work_projects = @homework.student_work_projects.where("student_work_id=? and is_leader =?",@work.id,0)

app/controllers/users_controller.rb

@@ -717,6 +717,7 @@ class UsersController < ApplicationController
       end
 
       student_work.save
+      send_message_to_teacher(student_work)
       homework.update_attributes(:updated_at => Time.now)
       update_course_activity(homework.class,homework.id)
       update_user_activity(homework.class,homework.id)

app/helpers/application_helper.rb

@@ -2137,6 +2137,20 @@ module ApplicationHelper
 
   end
 
+  #如果学生作品被打分后修改，应该给老师提示
+  def send_message_to_teacher student_work
+    if StudentWork === student_work
+      if student_work.student_works_scores.any?
+        course = student_work.homework_common.course
+        course.members.map(&:user_id).uniq.each do|user_id|
+          if User.find(user_id).allowed_to?(:as_teacher, course)
+            student_work.course_messages << CourseMessage.new(:user_id => user_id, :course_id => course.id, :viewed => false, :status => 1)
+          end
+        end
+      end
+    end
+  end
+
   private
 
   def wiki_helper

app/views/users/_user_message_course.html.erb

@@ -424,6 +424,28 @@
           <li class="homepageNewsTime fl"><%= time_tag(ma.created_at).html_safe %> </li>
         </ul>
     <% end %>
+
+
+    <% if ma.course_message_type == "StudentWork" && ma.status == 1 %>
+        <ul class="homepageNewsList fl">
+          <li class="homepageNewsPortrait fl">
+            <a href="javascript:void(0);"><%= link_to image_tag(url_to_avatar(ma.course_message.user), :width => "30", :height => "30"), user_path(ma.course_message.user) %></a>
+          </li>
+          <li class="homepageNewsPubType fl">
+            <%= link_to ma.course_message.user.lastname + ma.course_message.user.firstname + "同学",
+                        user_path(ma.course_message.user), :class => "newsBlue homepageNewsPublisher" %>
+            <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl" : "homepageNewsType fl" %>">重新提交了作品：</span>
+          </li>
+          <li class="homepageNewsContent fl">
+            <%= link_to "作业标题：" + ma.course_message.name, student_work_index_path(:homework => ma.course_message.homework_common_id),
+                        :class =>"#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}" %>
+            <%#= link_to truncate(ma.course_message.name,:length=>25)+'(失败原因：提交作品的人数低于2人)', student_work_index_path(:homework => ma.course_message.id), :class => "#{ma.viewed == 0 ? "c_red" : "newsGrey "}" %>
+            <!--:onmouseover => "message_titile_show($(this),event)",-->
+            <!--:onmouseout => "message_titile_hide($(this))" %>-->
+          </li>
+          <li class="homepageNewsTime fl"><%= time_tag(ma.created_at).html_safe %> </li>
+        </ul>
+    <% end %>
     <!-- 创建课程消息 -->
     <% if ma.course_message_type == "Course" %>
         <ul class="homepageNewsList fl">