修正课程通知编辑BUG

app/views/news/_course_show.html.erb

@@ -10,7 +10,7 @@
 
 <h3><strong><%=h @news.title %></strong></h3>
 
-<% if authorize_for('news', 'edit') %>
+<% if authorize_for_course('news', 'edit') %>
     <div id="edit-news" style="display:none;">
       <%= labelled_form_for :news, @news, :url => news_path(@news),
                             :html => { :id => 'news-form', :multipart => true, :method => :put } do |f| %>