Simple Multi-File Uploads With Paperclip

documents_controller.rb

params[:document][:filearrays].each do |file|
  @document = Document.new(:document => file)
  @document.save
end

form.erb

<%= form_for Document.new, :url => documents_path, :remote => true, :html => {:multipart => true} do |f| %>
	<%= f.file_field :filearrays, :multiple =>:true %>
	<%= f.submit "Submit" %>
<% end %>