Rails - Aug 2014 - No routes match to action

Hi guys!

I'm doing a shopping cart with the gem:  gem act_as_shopping_cart (
https://github.com/crowdint/acts_as_shopping_cart)

This gem do not have a good documentation, butis popular.

in my action add_item I'm getting the error:

No route matches {:action=>"add_item", :id=>nil,
:controller=>"comprar"}


This is my controller to items:

class ComprarController < SuperSiteController
  def index
    @v = Video.order('created_at asc')
    @n = News.all
    @cat = Category.all
  end

  def show
    @v = Video.find(params[:id])
    @n = News.all
    @cat = Category.all
    @cart = Cart.new
  end

  def add_item
    @cart = Cart.create
    @product = Video.find(params[:id])

    @cart.add(@product, @product.week_price)
  end
end



the model to my cart:

class Cart < ActiveRecord::Base
    attr_accessible :id, :owner_id, :owner_type, :quantity,
              :item_id, :item_type, :price


    acts_as_shopping_cart_using :video
  end


the model to items to sell:

class Video < ActiveRecord::Base
    attr_accessible :active, :desc, :embed, :img1, :img1_uid,
            :img2, :img2_uid, :img3, :img3_uid, :img4,
            :img4_uid, :infos, :month_price, :slug, :title,
            :trailer, :views, :week_price, :year_price, :category_id



    belongs_to :category

  acts_as_shopping_cart_item_for :cart
end


and the code in my view "show":


<% form_for @cart, :url => {:action => "add_item", :id =>
@cart.id} do |f|
%>
       <%= f.submit 'Add to Cart' %>
<% end %>


Someone is seeing something that I'm not?


I following the documentation, but still get this error

 Add Items

To add an item to the cart you use the add method. You have to send the
object and the price of the object as parameters.

So, if you had a Product class, you would do something like this:

@cart = Cart.create
@product = Product.find(1)

@cart.add(@product, 99.99)




Thanks!


-- 
*Fernando Aureliano*
fernandoaureliano.com

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