不能新建项目 在项目列表

app/views/projects/index.html.erb

@@ -10,7 +10,7 @@
 			<td class="location-list"><strong><%= l(:label_user_location) %> :</strong></td>
 			<td rowspan="2">
 			<% if User.current.logged? %>
-			<%= link_to(l(:label_project_new), {:controller => 'projects', :action => 'new', :course => 0, :project_type => @project_type}, :class => 'icon icon-add') if User.current.allowed_to?(:add_project, nil, :global => true) %>
+			<%= link_to(l(:label_project_new), {:controller => 'projects', :action => 'new', :course => 0, :project_type =>( @project_type||=0)}, :class => 'icon icon-add') if User.current.allowed_to?(:add_project, nil, :global => true) %>
 			<% end %>	
 			</td>
 			<td rowspan="2" >