完成系统消息通知功能

app/controllers/system_messages_controller.rb

@@ -33,6 +33,10 @@ class SystemMessagesController < ApplicationController
   # POST /products
   # POST /products.json
   def create
+    unless User.current.admin?
+      render_403
+      return
+    end
     @system_messages = SystemMessage.new
     @system_messages.content = params[:system_message][:content]
     @system_messages.user_id = User.current.id

app/controllers/users_controller.rb

@@ -114,8 +114,10 @@ class UsersController < ApplicationController
       message_new_time.save
     else
       message_new_time = OnclickTime.where("user_id =?", User.current).first
+      message_last_time = message_new_time.onclick_time
       message_new_time.update_attributes(:onclick_time => Time.now)
     end
+    @user_system_messages = SystemMessage.where("created_at >?", message_last_time)
     # 当前用户查看消息，则设置消息为已读
     if params[:viewed] == "all"
       course_querys = @user.course_messages

app/views/users/user_messages.html.erb

@@ -39,6 +39,18 @@
           <% end %>
         </div>
     <% end %>
+    <%# 系统消息 %>
+    <% @user_system_messages.each do |usm| %>
+        <ul class="homepageNewsList fl">
+          <li class="homepageNewsPortrait fl"><a href="javascript:void(0);">ddddddddddddddd</a></li>
+          <li class="homepageNewsPubType fl">Trustiep平台<span class="homepageNewsType fl">发布新消息：</span></li>
+          <li class="homepageNewsContent fl">
+            <%= link_to usm.content, {:controller => 'system_messages', :action => 'index'},
+                        :class =>"newsGrey",
+                        :title => "#{usm.content.html_safe}" %></li>
+          <li class="homepageNewsTime fl"><%= time_tag(usm.created_at).html_safe %> </li>
+        </ul>
+    <% end %>
     <%# 课程消息 %>
     <% unless @message_alls.nil? %>
         <% @message_alls.each do |ma| %>