paperclip

I have model Person that has many Images, where images has a Paperclip attachment field called data, an abbreviated version displayed below: class Person has_many :images ... end class Image has_attached_file :data belongs_to :person ... end Person is required to have at least one Image attached to it. When using FactoryGirl, I have code akin to the following: Factory.define :image do |a| a.data { File.new(File.join(Rails.root, 'features', 'support', 'file.png')) } a.association :person end Factory.define :person do |p| p.first_name 'Keyzer' p.last_name 'Soze' p.after_create do |person| person

I am using Paperclip (w/ Amazon s3) on Rails 3. I want to delete an existing attachment without replacing it using an update action. I've only found one example of this here and could not get that to work, it just wouldn't delete and there was nothing in the logs to say why. I wanted to do something like this on the form: <%- unless @page.new_record? || !@page.image? -%> <%= f.check_box :image_delete, :label => 'Delete Image' %> <%- end -%> (page is the name of the model, image is the attribute name which holds the attachment) But how do I detect that checkbox and more importantly, how do I

I'm working on upgrading a Rails 2.3.11, Ruby 1.9.2 app to Rails 3.0.10, and attachment_fu no longer works. I'm looking at changing to paperclip, carrierwave, or dragonfly for file uploads, or maybe a Rails 3 compatible, maintained version of attachment_fu. Which of these options would be the best to use in terms of performance, how well maintained it is, how easy it is to upgrade from attachment_fu, and maybe is it going to be Rails 3.1 compatible? What are the major strengths and disadvantages of each one? Any insight would be appreciated. I've used both Paperclip and Carrierwave, and if I