Rails - Nov 2008 - Cookies are not saved

Hi,

I''m developing my first RoR application and working first time with
cookies on RoR.

I create a product object, save it and set the id into the cookie

  def create
    @image = Image.new(params[:image])

    respond_to do |format|
      if @image.save
        @product = Product.new
        @product.image_id = @image.id
        @product.order_id = @order.id
        @product.save
        cookies[:product_id] = @product.id.to_s
        flash[:notice] = ''Image was successfully created.''
        format.html {redirect_to(''/karte/waehlen'')}
        format.xml  { render :xml => @image, :status => :created,
:location => @image }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @image.errors, :status =>
:unprocessable_entity }
      end
    end
  end

Then I redirect to the "karte" controller and "waehlen"
action

The karte controller looks like this

class KarteController < ApplicationController
    def waehlen
      @product = Product.find(cookies[:product_id])
      @image = Image.find(@product.image_id)
    end
end

I try to get the product_id from the cookie.

The waehlen.html.erb looks like

<div id="formatCenterContainer">
  <%= image_tag(@image.filename, :size => "190x153") %>
</div>

I get a NoMethodError

You have a nil object when you didn''t expect it!
The error occurred while evaluating nil.filename

Extracted source (around line #12):

9:
10: </div>
11: <div id="formatCenterContainer">
12:   <%= image_tag(@image.filename, :size => "190x153") %>


I checked the Cookie folder on my filesystem. There is no Cookie.

Do I have activate cookies? I already browsed for the problem, but I
find only information about read/write cookies and other options.

Cheers Adam
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