Hi there, I have multiple file uploads working with attachment_fu, however if one of the file fields is empty then it throws a validation error. Removing the validation results in an empty (nil) record being created. I''d like to be able to just ignore the empty file field and save the ones present. Any help or advice would be much appreciated. Many thanks, Will # --------------------------------------------------- photo.rb class Photo < ActiveRecord::Base belongs_to :album has_attachment :content_type => :image, :storage => :file_system, :max_size => 5000.kilobytes, :resize_to => ''600x600>'', :thumbnails => { :thumb => ''150x150>'', :stamp => ''75x75>'' }, :path_prefix => ''public/images'', :processor => ''rmagick'' validates_as_attachment end # --------------------------------------------------- album.rb class Album < ActiveRecord::Base has_many :photos, :dependent => :destroy after_update :save_photos def image_attributes=(image_attributes) image_attributes.each do |attributes| if attributes[:id].blank? photos.build(attributes) else photos = photos.detect { |t| t.id == attributes[:id].to_i} photos.attributes = attributes end end end def save_photos photos.each do | photo | photo.save(false) end end end # --------------------------------------------------- albums_controller.rb class AlbumsController < ApplicationController # .... Other REST actions def edit @collection = Collection.find(params[:id]) end def update @album = Collection.find(params[:id]) if @album.update_attributes(params[:album]) flash[:notice] = "New photos saved" redirect_to album_path(@album) else flash[:error] = "Something went wrong" render :action => ''edit'' end end end # --------------------------------------------------- views/albums/ edit.html.erb <%= error_messages_for ''album'' %> <% form_for (@album, :html => { :multipart => true }) do |f| %> <% fields_for "album[image_attributes][]", @album.photos do | photo_form| %> <p> <%= photo_form.file_field :uploaded_data, :index => nil %> Name: <%= photo_form.text_field :name, :index => nil %> </p> <p> <%= photo_form.file_field :uploaded_data, :index => nil %> Name: <%= photo_form.text_field :name, :index => nil %> </p> <% end %> <%= submit_tag ''save'' %> <% end %>