Preventing Paperclip from deleting/overwriting attachments on update

Question

I\'m having a hard time figuring out how to prevent Paperclip from deleting the old version of an attachment (image).

I have a model, Site, which has an attachment,

Answer 1

There's a new option that tells paperclip to preserve old attachments:

https://github.com/thoughtbot/paperclip/commit/65e8d4f6de50732d8e1b https://github.com/thoughtbot/paperclip/issues/60

Simple to use:

has_attached_file => :attachment,
                     :styles => { :thumb => 100x100! },
                     :preserve_files => true

It's not documented yet and took some digging to find so I wanted to share it here.