I asked other software entrepreneurs to share their stories of failure in the hope that we might save others from...

The Netty project is an effort to provide an asynchronous event-driven network application framework and tools for rapid development...

All ActiveRecord associations except for has_many :through support callbacks for pre- and post-insertion/deletion via the following, self...

Just assign the existing attachment to another record: new_photo = Photo.new new_photo.image = old_photo.image Paperclip will duplicate the file when saving...

This is more tricky than it should be because url_for, asset_path, etc. all rely on different mechanisms.