Paperclip + Active_admin + Rails 3.0.10 multiple images - ruby-on-rails

Question

I have a crud with paperclip and multiple images' i implement active_admin and the product update fine, but, i can't not upload or edit the multiple images, the form i have is this:
form :html => { :multipart => true } do |f|
f.inputs "Details" do
f.input :name
f.input :created_at, :label => "Publish Product at"
f.input :category
end
f.inputs "Images" do
f.has_many :assets do |p|
p.input :asset, :as => :file, :input_html => { :multiple => true }, :label => "Image", :hint => p.object.asset.nil? ? p.template.content_tag(:span, "No Image Yet") : p.template.image_tag(p.object.asset.url(:thumb))
p.input :_destroy, :as=>:boolean, :required => false, :label=>'Remove'
end
end
f.inputs "Content" do
f.input :description
end
f.buttons
end
and the...
f.inputs "Images" do
f.has_many :assets do |p|
p.input :asset, :as => :file, :input_html => { :multiple => true }, :label => "Image", :hint => p.object.asset.nil? ? p.template.content_tag(:span, "No Image Yet") : p.template.image_tag(p.object.asset.url(:thumb))
p.input :_destroy, :as=>:boolean, :required => false, :label=>'Remove'
end
end
I want to upload images, but when i create a new asset this have a missing image default and not attach the correct image, i think because the path from the images is not correct to upload. My asset model is:
class Asset < ActiveRecord::Base
belongs_to :product
has_attached_file :asset, :styles => { :large => "340x330", :medium => "140x80>", :thumb => "70x70>" },
:url => "/products/:id/:style/:basename.:extension",
:path => ":rails_root/public/products/:id/:style/:basename.:extension"
end
how i can modify my assets form to work like i want? Thank you!

Answer 1

The Solution
Hi, here is the solution, the key are how work the nested attributes in formtastic...
form :html => { :multipart => true } do |f|
f.inputs "Product information" do
f.input :name
f.input :description
end
f.inputs "Product images" do
f.has_many :assets do |p|
p.input :asset, :as => :file, :label => "Image",:hint => p.object.asset.nil? ? p.template.content_tag(:span, "No Image Yet") : p.template.image_tag(p.object.asset.url(:thumb))
p.input :_destroy, :as=>:boolean, :required => false, :label => 'Remove image'
end
end
f.inputs "Product details" do
f.input :category, :label => "Category", :hint => "Select one category"
f.input :height
f.input :width
f.input :depth
f.input :color, :label => "Color", :hint => "Select one color"
f.input :sku, :label => "SKU"
f.input :price
end
f.buttons
end