Use content_tag_for with array by default on scaffold.

railties/CHANGELOG.md

@@ -1,5 +1,7 @@
 ## Rails 4.0.0 (unreleased) ##
 
+*   Scaffold now uses `content_tag_for` in index.html.erb *José Valim*
+
 *   Rails::Plugin has gone. Instead of adding plugins to vendor/plugins use gems or bundler with path or git dependencies. *Santiago Pastorino*
 
 ## Rails 3.2.0 (unreleased) ##
@@ -67,7 +69,7 @@
     config/initializers/* will not be executed.
 
     Plugins developers need to special case their initializers that are
-    meant to be run in the assets group by adding :group => :assets.    
+    meant to be run in the assets group by adding :group => :assets.
 
 ## Rails 3.1.0 (August 30, 2011) ##
 

railties/lib/rails/generators/erb/scaffold/templates/index.html.erb

@@ -10,16 +10,14 @@
     <th></th>
   </tr>
 
-<%% @<%= plural_table_name %>.each do |<%= singular_table_name %>| %>
-  <tr>
+  <%%= content_tag_for(:tr, @<%= plural_table_name %>) do |<%= singular_table_name %>| %>
 <% attributes.each do |attribute| -%>
     <td><%%= <%= singular_table_name %>.<%= attribute.name %> %></td>
 <% end -%>
     <td><%%= link_to 'Show', <%= singular_table_name %> %></td>
     <td><%%= link_to 'Edit', edit_<%= singular_table_name %>_path(<%= singular_table_name %>) %></td>
     <td><%%= link_to 'Destroy', <%= singular_table_name %>, <%= key_value :confirm, "'Are you sure?'" %>, <%= key_value :method, ":delete" %> %></td>
-  </tr>
-<%% end %>
+  <%% end %>
 </table>
 
 <br />