upload csv files in rails 3

I need to upload files in rails 3, I followed a lot of tutorials but
don´t works for me, I did: http://www.dzone.com/links/r/file_uploading_using_rails.html,
but I just can see the page with the option of upload a file...but
can't save the file...or upload it, of course there something I'm not
doing...please healp, any way...here is my code, thanks in advance.
CONTROLLER

class UploadController < ApplicationController

protect_from_forgery :only => [:create, :update, :destroy]
def index
render :file => 'app/views/upload/uploadfile.html.erb'
end
def upload
@post = [];
params[:images].each { | id, image |
result = UploadedFile.save(id, image);
@post << result if result
}
respond_to do |format|
format.html
end
end
end
MODEL

class UploadFile < ActiveRecord::Base
# app/models/uploaded_file.rb

require 'image_size.rb'

language UploadedFile < ActiveRecord::Base

def self.save(id, upload)

# skipping empty fields

return false unless upload.blank?

# The saved file name is composed of the unique id and original
extension

name = id + "." + upload.original_filename.split(".").last

# target directory to save files

directory = "subirarchivo/public/data"

# create the file path

path = File.join(directory, name)

# write the file

File.open(path, "wb") { |f| f.write(upload.read) }
img = ImageSize.new(open(path))
return {
"width" => img.get_width,
"height" => img.get_height,
"filename" => name
}
end
end
VIEW

<!- app/views/upload/uploadfile.html.erb -->

<h1>Subir Archivos usando Rails y jQuery</h1>

<h3>Files</h3>

<form method="post" action="/services/uploadr"
enctype="multipart/form-data"
class="upload" id="upload_form">
<br/>
<input type="button" id="button" class="button" value="Agregar otro" /

<input type="submit" id="save" class="save" value="Subir Archivo" />
</form>
<h3>Images</h3>
<div lang="images_container"></div>

<% form_for :upload, :html => { :multipart => true, :id =>
"upload_form" },:method => 'post',
:url => { :action => "upload" } do |f| %>
<!-- add fields here -->
<% end %>**

Try using paperclip to upload files.