为发布竞赛通知添加权限

app/views/contestnotifications/index.html.erb

@@ -2,16 +2,11 @@
 	<%= l(:label_notification) %>
 </span>
 
-<% if User.current.logged? %>
+<% if User.current.logged? && User.current == @contest.author %>
 <%= link_to(l(:bale_news_notice),
             new_contest_contestnotification_path(@contest),
             :class => 'icon icon-add',
             :onclick => 'showAndScrollTo("add-contestnotifications", "contestnotifications_title"); return false;') %>
-<% else %>
- 
-      <%= l(:label_user_login_attending_contest) %>
-      <%= link_to l(:label_user_login_new), signin_path %>
-
 <% end %>