How to: use callbacks

Callbacks

Callbacks allow you to hook in your own code when a particular CarrierWave event occurs. The following callbacks are available for use in CarrierWave:

• :cache
• :retrieve_from_cache
• :store
• :retrieve_from_store
• :remove

Example

after :cache, :unlink_original

def unlink_original(file)
  return unless delete_original_file
  file.delete if version_name.blank?
end