课程讨论区附件无法查看问题，权限项目被删，恢复之

lib/redmine.rb

@@ -117,11 +117,11 @@ Redmine::AccessControl.map do |map|
   map.permission :projects_attachments_download,{:attachments => :download},:belong_to_project => true
   map.permission :course_attachments_download,{:attachments => :download},:belong_to_course => true
   map.permission :contest_attachments_download,{:attachments => :download},:belong_to_contest => true
-  #与项目一致，注释掉
-  #map.course_module :files do |map|
+
+  map.course_module :files do |map|
   #  map.permission :manage_files, {:files => [:new, :create]}, :require => :loggedin
-  #  map.permission :view_course_files, {:files => :index, :versions => :download}, :read => true
-  #end
+    map.permission :view_course_files, {:files => :index, :versions => :download}, :read => true
+  end
 
     map.course_module :news do |map|
   #  map.permission :manage_news, {:news => [:new, :create, :edit, :update, :destroy], :comments => [:destroy]}, :require => :member