user can't delete self and flash_messages

app/views/panel/users/_form.html.erb

@@ -32,7 +32,7 @@
   </fieldset>
 <% end %>
 
-<%= hidden_field_tag :active_roles, @user.active_roles.size > 0 %>
+<%= hidden_field_tag :active_roles, (@user.active_roles.size > 0 rescue nil ) %>
 <% if @user_role_models %>
   <fieldset id="roles" <%= raw(' style="display: none;"') unless (@user.active_roles.size > 0 rescue nil) %>>
   <legend><%= t('panel.roles') %></legend>

app/views/panel/users/index.html.erb

@@ -1,9 +1,11 @@
 <% content_for :secondary do %>
-    <ul class="list">
-        <li><%= link_to t('panel.new_user'), new_panel_user_path, :class => 'button positive' %></li>
-    </ul>
+  <ul class="list">
+    <li><%= link_to t('panel.new_user'), new_panel_user_path, :class => 'button positive' %></li>
+  </ul>
 <% end -%>
 
+<%= flash_messages %>
+
 <h1><%= t('panel.list_users') %></h1>
 
 <table>
@@ -14,15 +16,16 @@
     <th><%= t('panel.action') %></th>
   </tr>
 
-<% @users.each do |user| %>
-<tr>
-    <td><%= user.get_roles %></td>
-    <td><%= user[:name] %></td>
-    <td><%= user.email %></td>
-    <td>
+  <% @users.each do |user| %>
+    <tr>
+      <td><%= user.get_roles %></td>
+      <td><%= user[:name] %></td>
+      <td><%= user.email %></td>
+      <td>
         <%= link_to t(:show), panel_user_path(user) %> |
         <%= link_to t(:edit), edit_panel_user_path(user) %> | 
-        <%= link_to t(:delete), panel_user_path(user), :method => :delete %></td>
-</tr>    
-<% end %>
+        <%= link_to t(:delete), panel_user_path(user), :confirm => t('sure?'), :method => :delete %>
+      </td>
+    </tr>    
+  <% end %>
 </table>