I have the following code on my model:
has_attached_file :photo, :styles => { :small => "150x150#" }, :storage => :s3, :s3_credentials => "#{RAILS_ROOT}/config/s3.yml", :path => "/photo/:id/:style/:filename", :s3_headers => { 'Cache-Control' => 'max-age=315576000', 'Expires' => 10.years.from_now.httpdate }
When an image is uploaded, only the original is saved, the styles are not working. There is no small file generated.
You just need to update the gem to the latest and greatest