on_the_spot gem not working

I have just installed the "on_the_spot" gem following the github instructions.

And I'm trying to create a in-place edit for my index action. When I get the mouse over the text that should be editable, nothing happens. Only the background color changes.

This is the relevant code from my index view

<% @part_types.each do |part_type| %>
<tr>
  <td><%= on_the_spot_edit part_type, :tit开发者_JS百科le %></td>
</tr>
<% end %>

From the controller:

class PartTypesController < ApplicationController

#on_the_spot for in place editing
can_edit_on_the_spot
#.. rest of the controller code
end

Added to the routes:

resources :part_types do
  collection do
    put :update_attribute_on_the_spot
  end
end

nginx already restarted after these changes.

Thank you

Inside your Gemfile add the following:

gem "on_the_spot" Run the installation task:

rails g on_the_spot:install

if u using rails 3.1 replace created files to app/assets/javascripts (two files jquery.jeditable.mini and on_the_spot)