Ajax update with coffeescript + rails3 - ruby-on-rails-3

Question

I'm following a sortable list tutorial in here , but unfortunately the article is bit old (but very useful) and I'm having some issues when try to implement it with
Rails 3.2.x
coffeescript
Jquery
My issue is , view is not passing request to controller and instead gives a routing error
Following is my view
#index.html.erb
<h1>Listing books</h1>
<ul id="books"> <% #books.each do |book| %>
<li class="book<%= book.id %>"><span class="handle">[drag]</span><%= book.name %></li>
<% end %></ul>
<%= link_to 'New book', new_book_path %>
and this is my coffeescript
#books.js.coffee
jQuery ->
$('#books').sortable
axis: 'y'
handle: '.handle'
update: ->
$.post($(this).data('#books'), $(this).sortable('serialize'))
and this is my controller
#books_controller.rb
def sort
#books = Book.all
#books.each do |book|
book.position = params['book'].index(book.id.to_s) + 1
book.save
end
render :nothing => true
end
and this is my routes
#config/routes.rb
resources :books do
collection do
post :sort
end
end
this is the error I'm getting
Started POST "/undefined" for 127.0.0.1 at 2012-11-28 16:13:29 +0530
ActionController::RoutingError (No route matches [POST] "/undefined"):
actionpack (3.2.9) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
actionpack (3.2.9) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.9) lib/rails/rack/logger.rb:32:in `call_app'
railties (3.2.9) lib/rails/rack/logger.rb:16:in `block in call'
activesupport (3.2.9) lib/active_support/tagged_logging.rb:22:in `tagged'
railties (3.2.9) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.9) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.9) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.1) lib/rack/lock.rb:15:in `call'
actionpack (3.2.9) lib/action_dispatch/middleware/static.rb:62:in `call'
railties (3.2.9) lib/rails/engine.rb:479:in `call'
railties (3.2.9) lib/rails/application.rb:223:in `call'
rack (1.4.1) lib/rack/content_length.rb:14:in `call'
railties (3.2.9) lib/rails/rack/log_tailer.rb:17:in `call'
rack (1.4.1) lib/rack/handler/webrick.rb:59:in `service'
/home/sameera/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/home/sameera/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/home/sameera/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'
Rendered /home/sameera/.rvm/gems/ruby-1.9.2-p290/gems/actionpack-3.2.9/lib/action_dispatch/middleware/templates/rescues/routing_error.erb within rescues/layout (0.7ms)
Any help will be greatly appreciated,
thanks

Answer 1

I believe $.post requires a url parameter like this:
$.post('/books/sort', $(this).data('#books'), $(this).sortable('serialize'))