Ruby on Rails

I have a Post model which has_many :photos. While User creating a new post, user should be also able to select photos (multiple) for given post.

I am using RAILS 3.2.9, nested_form, carrierwave and jquery-fileupload-rails gem and ryan bates railscasts as a guide.

All seems to be set up correctly, but problem is, when User choose a photo (a fileupload() function is triggered), new Post and new Photo record are created. Once I press "create post" another post record is again created. Any help/idea how to get rid off with the first Post record once user select the photo?

Thank you very much.

Petr

class Post < ActiveRecord::Base    has_many :photos, as: :attachable, :dependent => :destroy    accepts_nested_attributes_for :photos, :allow_destroy => true  end    class Photo < ActiveRecord::Base    belongs_to :attachable, polymorphic: true    attr_accessible :image, :description, :post_id, :attachable_id, :attachable_type    mount_uploader :image, PhotoUploader  end      # Post Controller  def create    @post = Post.new(params[:post])    @post.save  end      # _form.html.erb  <%= nested_form_for @post, :html => { :multipart => true } do |f| %>    <%= f.fields_for :photos do |photo| %>      <% if photo.object.new_record? %>        <%= photo.file_field :image, id: "fileupload" %>        <%= photo.hidden_field :id %>        <%= photo.hidden_field :attachable_id %>        <%= photo.hidden_field :attachable_type %>      <% else %>        <%= image_tag(photo.object.image.url(:thumb)) %>        <%= photo.check_box :_destroy %>      <% end %>    <% end %>  <% end %>    #application.js  $('#fileupload').fileupload();

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