修改了自己能看到自己下载的文件

app/views/bids/_homework_list.html.erb

@@ -31,7 +31,7 @@
 
 					<tr>
 						<td colspan="2" width="580px" >					
-					<% unless User.current.logged? && (!Member.where('user_id = ? and project_id = ?', User.current.id, @bid.courses.first.id).first.nil? && (Member.where('user_id = ? and project_id = ?', User.current.id, @bid.courses.first.id).first.roles&Role.where('id = ? or id = ? or id =?',5, 10, 7)).size >0) %>
+					<% if (User.current == homework.user) || (!Member.where('user_id = ? and project_id = ?', User.current.id, @bid.courses.first.id).first.nil? && (Member.where('user_id = ? and project_id = ?', User.current.id, @bid.courses.first.id).first.roles&Role.where('id = ? or id = ? or id =?',3,7, 9)).size >0) %>
 							<p class="font_description">
 								<% options = {:author => true, :deletable => attach_delete(homework)} %>
 								<%= render :partial => 'attachments/links',